Document and Entity Information - USD ($) $ in Millions	12 Months Ended
Document and Entity Information - USD ($) $ in Millions	Dec. 31, 2018	Mar. 18, 2019	Jun. 29, 2018
Entity Registrant Name	Ascent Capital Group, Inc.
Entity Central Index Key	0001437106
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Document Type	10-K
Document Period End Date	Dec. 31, 2018
Document Fiscal Year Focus	2018
Document fiscal period focus	FY
Amendment Flag	false
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Smaller Reporting Company	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 32.2
Series A Common Stock
Entity Common Stock, Shares Outstanding (in shares)		12,092,846
Series B Common Stock
Entity Common Stock, Shares Outstanding (in shares)		381,528

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 105,921	$ 10,465
Restricted cash	189	0
Marketable securities, at fair value	0	105,958
Trade receivables, net of allowance for doubtful accounts of $3,759 in 2018 and $4,162 in 2017	13,121	12,645
Prepaid and other current assets	32,202	11,175
Total current assets	151,433	140,243
Property and equipment, net of accumulated depreciation of $40,827 in 2018 and $37,915 in 2017	36,549	32,823
Subscriber accounts, net of accumulated amortization of $1,621,242 in 2018 and $1,439,164 in 2017	1,195,463	1,302,028
Dealer network and other intangible assets, net of accumulated amortization of $0 in 2018 and $42,806 in 2017	0	6,994
Goodwill	0	563,549
Deferred income tax asset, net	783	0
Other assets, net	29,316	9,348
Total assets	1,413,544	2,054,985
Current liabilities:
Accounts payable	12,668	11,092
Other accrued liabilities	36,006	56,282
Deferred revenue	13,060	13,871
Holdback liability	11,513	9,309
Current portion of long-term debt	1,895,175	11,000
Total current liabilities	1,968,422	101,554
Non-current liabilities:
Long-term debt	0	1,778,044
Long-term holdback liability	1,770	2,658
Derivative financial instruments	6,039	13,491
Deferred income tax liability, net	0	13,311
Other liabilities	2,742	3,255
Total liabilities	1,978,973	1,912,313
Commitments and contingencies
Stockholders' (deficit) equity:
Preferred stock, $0.01 par value. Authorized 5,000,000 shares; no shares issued	0	0
Additional paid-in capital	1,425,325	1,423,899
Accumulated deficit	(1,998,487)	(1,277,118)
Accumulated other comprehensive loss, net	7,608	(4,233)
Total stockholders' (deficit) equity	(565,429)	142,672
Total liabilities and stockholders' (deficit) equity	1,413,544	2,054,985
Series A Common Stock
Stockholders' (deficit) equity:
Common stock	121	120
Series B Common Stock
Stockholders' (deficit) equity:
Common stock	4	4
Series C Common Stock
Stockholders' (deficit) equity:
Common stock	$ 0	$ 0

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Trade receivables, allowance for doubtful accounts	$ 3,759	$ 4,162
Property and equipment, accumulated depreciation	40,827	37,915
Subscriber accounts, accumulated amortization	1,621,242	1,439,164
Dealer network and other intangible assets, accumulated amortization	$ 0	$ 42,806
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized shares (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	0	0
Series A Common Stock
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, authorized shares (in shares)	45,000,000	45,000,000
Common stock, issued shares (in shares)	12,080,683	11,999,630
Common stock, outstanding shares (in shares)	12,080,683	11,999,630
Series B Common Stock
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, authorized shares (in shares)	5,000,000	5,000,000
Common stock, issued shares (in shares)	381,528	381,528
Common stock, outstanding shares (in shares)	381,528	381,528
Series C Common Stock
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, authorized shares (in shares)	45,000,000	45,000,000
Common stock, issued shares (in shares)	0	0
Common stock, outstanding shares (in shares)	0

Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Statement [Abstract]
Net revenue	$ 540,358	$ 553,455	$ 570,372
Operating expenses:
Cost of services	128,939	119,193	115,236
Selling, general and administrative, including stock-based and long-term incentive compensation	130,637	167,887	125,892
Radio conversion costs	0	450	18,422
Amortization of subscriber accounts, deferred contract acquisition costs and other intangible assets	211,639	236,788	246,753
Depreciation	11,457	8,844	8,435
Loss on goodwill impairment	563,549	0	0
Gain on disposal of operating assets, net	0	(21,217)	0
Total operating expenses	1,046,221	511,945	514,738
Operating income (loss)	(505,863)	41,510	55,634
Other expense (income), net:
Interest income	(2,439)	(2,446)	(2,282)
Interest expense	191,202	152,257	132,269
Unrealized loss on derivative financial instruments	3,151	0	0
Refinancing expense	13,356	0	9,500
Other expense (income), net	(1,478)	(242)	140
Total other expense (income), net	203,792	149,569	139,627
Loss from continuing operations before income taxes	(709,655)	(108,059)	(83,993)
Income tax expense (benefit) from continuing operations	(11,611)	(408)	7,251
Net loss from continuing operations	(698,044)	(107,651)	(91,244)
Discontinued operations:
Income from discontinued operations, net of income tax of $0	0	92	0
Net loss	(698,044)	(107,559)	(91,244)
Other comprehensive income (loss):
Foreign currency translation adjustments	758	782	(1,032)
Unrealized holding gain (loss) on marketable securities, net	(3,900)	2,828	1,956
Unrealized gain on derivative contracts, net	14,378	1,582	4,589
Total other comprehensive income, net of tax	11,236	5,192	5,513
Comprehensive loss	$ (686,808)	$ (102,367)	$ (85,731)
Basic and diluted earnings (loss) per share:
Continuing operations (in dollars per share)	$ (56.54)	$ (8.83)	$ (7.44)
Discontinued operations (in dollars per share)	0.00	0.01	0.00
Net loss (in dollars per share)	$ (56.54)	$ (8.82)	$ (7.44)

Consolidated Statements of Operations and Comprehensive Income (Loss) (Parenthetical) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Statement [Abstract]
Tax effect of discontinued operation	$ 0	$ 0	$ 0

- Definition

Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

+ References + Details

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net loss	$ (698,044)	$ (107,559)	$ (91,244)
Adjustments to reconcile net loss to net cash provided by operating activities:
Income from discontinued operations, net of income tax	0	(92)	0
Amortization of subscriber accounts, dealer network and other intangible assets	211,639	236,788	246,753
Depreciation	11,457	8,844	8,435
Stock-based and long-term incentive compensation	1,451	7,431	6,984
Deferred income tax expense (benefit)	(14,094)	(4,474)	4,201
Gain on disposal of operating assets, net	0	(21,217)	0
Payments for legal settlements, net of related (insurance recovery)	(2,750)
Non-cash legal settlement reserve (related insurance recovery)		23,000	0
Amortization of debt discount and deferred debt costs	41,430	11,111	10,670
Refinancing expense	13,356	0	9,500
Unrealized loss on derivative financial instruments	3,151	0	0
Bad debt expense	12,300	11,014	10,785
Loss on goodwill impairment	563,549	0	0
Other non-cash activity, net	(2,199)	(4,057)	(3,210)
Changes in assets and liabilities:
Trade receivables	(12,776)	(9,790)	(11,032)
Prepaid expenses and other assets	(14,576)	(1,669)	325
Subscriber accounts - deferred contract costs	(5,418)	(3,064)	(2,947)
Payables and other liabilities	(15,545)	(6,361)	(317)
Operating activities from discontinued operations, net	0	(3,408)	0
Net cash provided by operating activities	92,931	136,497	188,903
Cash flows from investing activities:
Capital expenditures	(14,903)	(14,393)	(9,180)
Cost of subscriber accounts acquired	(140,450)	(142,909)	(201,381)
Purchases of marketable securities	(39,022)	(26,634)	(5,036)
Proceeds from sale of marketable securities	143,316	1,108	15,184
Proceeds from disposal of operating assets	0	32,612	0
Net cash used in investing activities	(51,059)	(150,216)	(200,413)
Cash flows from financing activities:
Proceeds from long-term debt	248,800	187,950	1,280,700
Payments on long-term debt	(184,100)	(175,250)	(1,238,059)
Payments of financing costs	(10,739)	0	(16,946)
Value of shares withheld for share-based compensation	(188)	(835)	(358)
Purchases and retirement of common stock	0	0	(7,140)
Net cash provided by financing activities	53,773	11,865	18,197
Net increase (decrease) in cash, cash equivalents and restricted cash	95,645	(1,854)	6,687
Cash, cash equivalents and restricted cash at beginning of period	10,465	12,319	5,632
Cash, cash equivalents and restricted cash at end of period	106,110	10,465	12,319
Supplemental cash flow information:
State taxes paid, net	2,517	2,713	2,645
Interest paid	150,003	140,706	120,873
Accrued capital expenditures	$ 552	$ 272	$ 558

Consolidated Statements of Stockholders' (Deficit) Equity - USD ($) $ in Thousands	Total	Common Stock Series A Common Stock	Common Stock Series B Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Beginning of Period at Dec. 31, 2015	$ 324,769	$ 123	$ 4	$ 1,417,895	$ (1,078,315)	$ (14,938)
Increase (Decrease) in Stockholders' Equity
Net loss	(91,244)				(91,244)
Other comprehensive income	5,513					5,513
Purchases and retirement of common stock	(7,140)	(4)		(7,136)
Stock-based compensation	7,105	1		7,104
Value of shares withheld for minimum tax liability	(358)			(358)
Ending of Period at Dec. 31, 2016	238,645	120	4	1,417,505	(1,169,559)	(9,425)
Increase (Decrease) in Stockholders' Equity
Net loss	(107,559)				(107,559)
Other comprehensive income	5,192					5,192
Stock-based compensation	7,229	1		7,228
Value of shares withheld for minimum tax liability	(835)	(1)		(834)
Ending of Period at Dec. 31, 2017	142,672	120	4	1,423,899	(1,277,118)	(4,233)
Increase (Decrease) in Stockholders' Equity
Net loss	(698,044)				(698,044)
Other comprehensive income	11,236					11,236
Stock-based compensation	1,615	1		1,614
Value of shares withheld for minimum tax liability	(188)			(188)
Ending of Period at Dec. 31, 2018	$ (565,429)	$ 121	$ 4	$ 1,425,325	$ (1,998,487)	$ 7,608

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

Basis of Presentation	12 Months Ended
Basis of Presentation	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying Ascent Capital Group, Inc. ("Ascent Capital" or the "Company") consolidated financial statements represent the financial position and results of operations of Ascent Capital and its consolidated subsidiaries. Monitronics International, Inc. and its consolidated subsidiaries (collectively, "Brinks Home Security^TM"), are the primary, wholly owned subsidiaries of the Company. On August 16, 2013, Brinks Home Security acquired all of the equity interests of Security Networks LLC ("Security Networks") and certain affiliated entities (the "Security Networks Acquisition"). On February 23, 2015, Brinks Home Security acquired LiveWatch Security, LLC ("LiveWatch"), a Do-It-Yourself ("DIY") home security firm, offering professionally monitored security services through a direct-to-consumer sales channel (the "LiveWatch Acquisition"). Brinks Home Security provides residential customers and commercial client accounts with monitored home and business security systems, as well as interactive and home automation services, in the United States, Canada and Puerto Rico. Brinks Home Security customers are obtained through its direct-to-consumer sales channel (the "Direct to Consumer Channel") or its exclusive authorized dealer network (the "Dealer Channel"), which provides product and installation services, as well as support to customers. Its Direct to Consumer Channel offers both DIY and professional installation security solutions. The rollout of the Brinks Home Security brand in the second quarter of 2018 included the integration of our business model under a single brand. As part of the integration, we reorganized our business from two reportable segments, "MONI" and "LiveWatch," to one reportable segment, Brinks Home Security. Following the integration, the Company's chief operating decision maker reviews internal financial information on a consolidated Brinks Home Security basis, which excludes corporate Ascent Capital activities and consolidation eliminations not associated with the operation of Brinks Home Security. Total assets related to corporate Ascent Capital activities are $107,815,000 and $113,698,000 as of December 31, 2018 and 2017, respectively. Net gain (loss) from continuing operations before income taxes related to corporate Ascent Capital activities was $(16,311,000), $5,131,000 and $(14,835,000) for the years ended December 31, 2018, 2017 and 2016, respectively. The consolidated financial statements contained in this Annual Report have been prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP") for all periods presented. The Company adopted Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers, as amended, (Topic 606) ("Topic 606") using the modified retrospective approach on January 1, 2018, at which time it became effective for the Company. The Company recognized the cumulative effect of initially applying the new revenue standard as an adjustment to the opening balance of retained earnings. The Company adopted ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities ("ASU 2017-12") which amends the hedge accounting rules to align risk management activities and financial reporting by simplifying the application of hedge accounting guidance. The guidance expands the ability to hedge nonfinancial and financial risk components and eliminates the requirement to separately measure and report hedge ineffectiveness. Additionally, certain hedge effectiveness assessment requirements may be accomplished qualitatively instead of quantitatively. The Company early adopted ASU 2017-12 effective January 1, 2018, and as such, an opening equity adjustment of $605,000 was recognized that reduced Accumulated deficit, offset by a gain in Accumulated other comprehensive income (loss). This adjustment primarily relates to the derecognition of the cumulative ineffectiveness recorded on the Company's interest rate swap derivative instruments, as well as adjustments to cumulative dedesignation adjustments. The Company does not expect this adoption to have a material impact on its financial position, results of operations or cash flows on an ongoing basis. The Company early adopted ASU 2017-04, Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment ("ASU 2017-04"). Prior to the adoption of ASU 2017-04, the fair value of the reporting unit was compared with the carrying value of the reporting unit (identified as "Step 1"). If the fair value of the reporting unit was lower than its carrying amount, then the implied fair value of goodwill was calculated. If the implied fair value of goodwill was lower than the carrying value of goodwill, an impairment was recognized (identified as "Step 2"). ASU 2017-04 eliminated Step 2 from the impairment test; therefore, a goodwill impairment is recognized as the difference of the fair value and the carrying value of the reporting unit. The comparative information has not been restated and continues to be reported under the accounting standards in effect during those periods. See note 5, Revenue Recognition and note 8, Goodwill in the notes to the consolidated financial statements for further discussion. The Company’s Series A Common Stock is listed on the Nasdaq Global Select Market. As a Nasdaq listed company, the Company is required to satisfy Nasdaq’s continued listing requirements. On November 26, 2018, the Company received a letter from The Nasdaq Stock Market LLC (“Nasdaq”) indicating that the market value of publicly held shares of the Company’s Series A common stock (“MVPHS”) for the last 30 consecutive business days was less than $15 million, which is the minimum market value of publicly held shares (the “MVPHS Requirement”) necessary to qualify for continued listing on the Nasdaq Global Select Market under Nasdaq Listing Rule 5450(b)(3)(C). In accordance with Nasdaq Listing Rule 5810(c)(3)(D), the Company has been provided 180 calendar days, or until May 28, 2019, to regain compliance with the MVPHS Requirement. To regain compliance, the Company’s MVPHS must be at least $15 million for at least ten consecutive business days during this 180-day period, at which point Nasdaq would provide written confirmation to the Company and close the matter. If the Company does not regain compliance within the 180-day compliance period, Nasdaq will provide notice to the Company that its Series A common stock is subject to delisting. In addition, on December 28, 2018, the Company received a letter (the “Minimum Bid Notice”) from Nasdaq indicating that the closing bid price of its Series A common stock for the last 30 consecutive business days was less than $1.00, which is the minimum closing bid price (the “Minimum Bid Price Requirement”) necessary to qualify for continued listing on the Nasdaq Global Select Market under Nasdaq Listing Rule 5450(a)(1). In accordance with Nasdaq Listing Rule 5810(c)(3)(A), the Company has been provided 180 calendar days, or until June 26, 2019, to regain compliance with the Minimum Bid Price Requirement. To regain compliance, the closing bid price of the Company’s Series A common stock must be at least $1.00 per share for at least ten consecutive business days during this 180-day period, at which point Nasdaq would provide written confirmation to the Company of compliance with the Minimum Bid Price Requirement and close the matter. If the Company does not regain compliance with the Minimum Bid Price Requirement by June 26, 2019, and the Nasdaq staff determines that it will not be able to cure the deficiency, or if it is not otherwise eligible for any additional compliance period, Nasdaq will provide notice that its Series A common stock is subject to delisting. While Nasdaq’s rules permit the Company to appeal any delisting determination, there can be no assurance the Nasdaq’s staff would grant its request for continued listing. Further, there can be no assurance that the Company will be able to regain compliance with the MVPHS requirement or the Minimum Bid Price Requirement or maintain compliance with Nasdaq’s other continued listing requirements. In addition, a delisting of our Series A Common Stock from Nasdaq would negatively impact the Company because it could, among other things: (i) reduce the liquidity and market price of the Company’s common stock; (ii) reduce the amount of news and analyst coverage for the Company; (iii) reduce the number of investors willing to hold or acquire the Company’s common stock, which could negatively impact its ability to raise equity financing and the ability of our shareholders to sell its common stock; (iv) limit the Company’s ability to use a registration statement to offer and sell freely tradable securities, thereby preventing it from accessing the public capital markets; (v) impair the Company’s ability to provide liquid equity incentives to its employees; and (vi) have negative reputational impact for the Company with its customers, suppliers, employees and other persons with whom it transacts from time to time. If the Company’s Series A Common Stock ceases to be listed on at least one U.S. national securities exchange, such cessation would constitute a “fundamental change,” as such term is defined in the indenture (the “Indenture”) governing our 4.00% Convertible Senior Notes due July 15, 2020 (the "Convertible Notes"). As a result, each remaining holder of the Convertible Notes would have the right, at such noteholder’s option, to require the Company to repurchase for cash all or a portion of such noteholder’s Convertible Notes on the repurchase date specified by the Company in accordance with the provisions of the Indenture at a repurchase price equal to 100% of the principal amount thereof, together with any accrued and unpaid interest, including any unpaid “additional interest” (as such term is defined in the Indenture) to, but excluding, the “fundamental change repurchase date” (as such term is defined in the Indenture). The Company may not have sufficient funds, or be able to obtain financing, to pay the fundamental change repurchase price if it is required to repurchase the Convertible Notes. A failure to pay the fundamental change repurchase price if the Company is required to repurchase the Convertible Notes would constitute an event of default under the Indenture. If an event of default occurs under the Indenture, either the trustee under the Indenture or the holders of the requisite aggregate principal amount of the Convertible Notes then outstanding in accordance with the provisions of the Indenture may accelerate the due date of the entire outstanding principal amount of, and any accrued and unpaid interest and accrued and unpaid additional interest on all the Convertible Notes, to be due and payable immediately.

Going Concern	12 Months Ended
Going Concern	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Going Concern	Going Concern The Company has substantial indebtedness at December 31, 2018, including Brinks Home Security's $585,000,000 principal of senior notes, maturing on April 1, 2020 (the "Senior Notes"), and its existing credit facility with a term loan in principal of $1,075,250,000 as of December 31, 2018, maturing September 30, 2022, and a revolving credit facility with an outstanding balance of $144,200,000 as of December 31, 2018, maturing September 30, 2021 (the term loan and the revolver, together, the "Credit Facility"). The maturity date for each of the term loan and the revolving credit facility under the Credit Facility is subject to a springing maturity 181 days prior to the scheduled maturity date of the Senior Notes, or October 3, 2019, if Brinks Home Security is unable to refinance the Senior Notes by that date. Since Brinks Home Security has not refinanced the Senior Notes and the springing maturity date of October 3, 2019 occurs in a period less than twelve months after the issuance date of these consolidated financial statements, management has concluded there is substantial doubt regarding the Company’s ability to continue as a going concern within one year from the issuance date of these consolidated financial statements. Ascent Capital and Brinks Home Security have engaged financial and legal advisors to assist them in considering potential alternatives to address the issues described above. As of the issuance date of these consolidated financial statements, Brinks Home Security has not refinanced the Senior Notes and there can be no assurance that any refinancing, or an alternative restructuring of its outstanding indebtedness will be possible on acceptable terms, if at all. Brinks Home Security may not be able to come to an agreement with respect to the outstanding indebtedness that is acceptable to all of Brinks Home Security’s stakeholders. Brinks Home Security’s failure to refinance the Senior Notes or to reach an agreement with its stakeholders on the terms of a restructuring would have a material adverse effect on its liquidity, financial condition and results of operations and may result in it filing a voluntary petition for relief under Chapter 11 of the United States Bankruptcy Code in order to implement a restructuring plan. Ascent Capital has not guaranteed any of Brinks Home Security's obligations under the Senior Notes and Credit Facility. Based on the factors above, the Company has received a going concern qualification in connection with the external audit report of this Annual Report on Form 10-K for the year ended December 31, 2018. Furthermore, there is substantial doubt about Brinks Home Security’s ability to continue as a going concern within one year from the issuance date of its consolidated financial statements in its standalone Annual Report on Form 10-K for the year ended December 31, 2018. As such, Brinks Home Security has also received a going concern qualification in connection with its standalone external audit report of its Annual Report on Form 10-K, for the year ended December 31, 2018, which constitutes a default under Brinks Home Security’s Credit Facility. Any default under the Credit Facility may, upon the passage of time, mature into an event of default. At any time after the occurrence of an event of default under the Credit Facility, the lenders thereunder may, among other options, declare any amounts outstanding under the Credit Facility immediately due and payable and the revolving loan lenders thereunder may terminate any commitment to make further loans under the revolving credit facility under the Credit Facility. Any such acceleration may constitute an event of default under the indenture governing the Senior Notes. Further, in connection with management’s negotiations with its creditors, Brinks Home Security did not make its Senior Notes interest payment due on April 1, 2019. The indenture governing the Senior Notes provides for a 30-day cure period on past due interest payments. If an event of default occurs and is continuing thereunder, the holders of the Senior Notes may declare the aggregate principal amount of the Senior Notes and any accrued interest on the Senior Notes to be immediately due and payable. Brinks Home Security has obtained a waiver from the Credit Facility revolving loan lenders and a forbearance from the Credit Facility term lenders, in each case with respect to the default in connection with the going concern qualification contained in Brinks Home Security’s external audit report of their Annual Report on Form 10-K for the year ended December 31, 2018 (the “Going Concern Default”), and in each case through April 30, 2019, subject to the terms and conditions of the waiver and forbearance. The waiver obtained from the Credit Facility revolving loan lenders allows Brinks Home Security to continue to borrow under the revolving credit facility under the Credit Facility for up to $195,000,000 at an alternate base rate plus 3.00%. The forbearance obtained from the Credit Facility term lenders states that the term loan lenders will not exercise remedies with respect to an event of default that may mature from the Going Concern Default. The Going Concern Default and any such event of default under the Credit Facility term loan would continue absent a waiver from the term loan lenders. To the extent any waiver or forbearance under the Credit Facility expires, any acceleration as a result of an event of default under the Credit Facility would trigger an event of default under the indenture governing the Senior Notes. To the extent an event of default under such indenture occurs, Brinks Home Security would seek to obtain a waiver or forbearance from the bondholders thereunder. The Company’s consolidated financial statements as of December 31, 2018 have been prepared on a going concern basis, which contemplates the realization of assets and the settlement of liabilities and commitments in the normal course of business.

Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Consolidation Principles

The consolidated financial statements include the accounts of the Company and its majority owned subsidiaries over which the Company exercises control. All intercompany accounts and transactions have been eliminated in consolidation.

Cash and Cash Equivalents

The Company considers investments with original purchased maturities of three months or less when acquired to be cash equivalents.

Restricted Cash

Restricted cash is cash that is restricted for a specific purpose and cannot be included in the cash and cash equivalents account.

Trade Receivables

Trade receivables consist primarily of amounts due from subscribers for recurring monthly monitoring services over a wide geographical base. Brinks Home Security performs extensive credit evaluations on the portfolios of subscriber accounts prior to acquisition and requires no collateral on the accounts that are acquired. Brinks Home Security has established an allowance for doubtful accounts for estimated losses resulting from the inability of subscribers to make required payments. Factors such as historical-loss experience, recoveries and economic conditions are considered in determining the sufficiency of the allowance to cover potential losses. The allowance for doubtful accounts as of December 31, 2018 and 2017 was $3,759,000 and $4,162,000, respectively.

A summary of activity in the allowance for doubtful accounts is as follows (amounts in thousands):



	Balance Beginning of Year		Charged to Expense	Write-Offs and Other		Balance End of Year
2018	$	4,162	12,300	(12,703	)	3,759
2017	$	3,043	11,014	(9,895	)	4,162
2016	$	2,762	10,785	(10,504	)	3,043

Concentration of Credit Risk

Financial instruments that potentially subject the Company to significant concentrations of credit risk consist principally of trade accounts receivable. Brinks Home Security performs extensive credit evaluations on the portfolios of subscriber accounts prior to acquisition and requires no collateral on the subscriber accounts that are acquired. Concentrations of credit risk with respect to trade accounts receivable are generally limited due to the large number of subscribers comprising Brinks Home Security's customer base.

Fair Value of Financial Instruments

Fair values of cash equivalents, current accounts receivable and current accounts payable approximate the carrying amounts because of their short-term nature. The Company's debt instruments are recorded at amortized cost on the consolidated balance sheet. See note 12, Fair Value Measurements, for further fair value information on the Company's debt instruments.

Investments

All investments in marketable securities held by the Company in the prior year were classified as available-for-sale ("AFS") and were carried at fair value generally based on quoted market prices. The Company recorded unrealized changes in the fair value of AFS securities in Accumulated other comprehensive loss on the consolidated balance sheets. When these investments were sold, the gain or loss realized on the sale was recorded in Other income, net in the consolidated statements of operations and comprehensive income (loss). In the third quarter of 2018, Ascent Capital divested of all marketable securities.

Inventories

Inventories consist of security system components and parts and are stated at the lower of cost (using the weighted average costing method) or net realizable value. Inventory is included in Prepaid and other current assets on the consolidated balance sheets and was $4,868,000 and $3,495,000 at December 31, 2018 and 2017, respectively.

Property and Equipment

Property and equipment are carried at cost and depreciated using the straight-line method over the estimated useful lives of the assets. Leasehold improvements are amortized over the shorter of their estimated useful lives or the term of the underlying lease. Estimated useful lives by class of asset are as follows:



Leasehold improvements		15 years or lease term, if shorter
Computer systems and software		3 - 5 years
Furniture and fixtures		5 - 7 years

Management reviews the realizability of its property and equipment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. In evaluating the value and future benefits of long-term assets, their carrying value is compared to management’s best estimate of undiscounted future cash flows over the remaining economic life. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying value of the assets exceeds the estimated fair value of the assets. If necessary, the Company would use both the income approach and market approach to estimate fair value.

Subscriber Accounts

Subscriber accounts primarily relate to the cost of acquiring monitoring service contracts from independent dealers. The subscriber accounts acquired in Brinks Home Security's business acquisitions were recorded at fair value under the acquisition method of accounting. All other acquired subscriber accounts are recorded at cost. All direct and incremental costs, including bonus incentives related to account activation in the Direct to Consumer Channel, associated with the creation of subscriber accounts, are capitalized. Upon adoption of Topic 606, all costs on new subscriber contracts obtained in connection with a subscriber move ("Moves Costs") are expensed, whereas prior to adoption, certain Moves Costs were capitalized on the balance sheet.

The costs of subscriber accounts acquired in Brinks Home Security's business acquisitions, as well as certain accounts acquired in bulk purchases, are amortized using the 14-year 235% declining balance method. The costs of all other subscriber accounts are amortized using the 15-year 220% declining balance method, beginning in the month following the date of acquisition. The amortization methods were selected to provide an approximate matching of the amortization of the subscriber accounts intangible asset to estimated future subscriber revenues based on the projected lives of individual subscriber contracts. Amortization of subscriber accounts was $204,130,000, $226,697,000 and $236,673,000 for the fiscal years ended December 31, 2018, 2017 and 2016, respectively.

Based on subscriber accounts held at December 31, 2018, estimated amortization of subscriber accounts in the succeeding five fiscal years ending December 31 is as follows (amounts in thousands):



2019	$	185,338
2020	$	161,949
2021	$	143,426
2022	$	130,246
2023	$	121,634

The Company has processes and controls in place, including the review of key performance indicators, to assist management in identifying events or circumstances that indicate the Subscriber Accounts Asset may not be recoverable. If an indicator that the asset may not be recoverable exists, management tests the Subscriber Accounts Asset for impairment. For purposes of recognition and measurement of an impairment loss, the Company views subscriber accounts as a single pool, for each of the Dealer Channel and the Direct to Consumer Channel, because of the assets' homogeneous characteristics, and the pool of subscriber accounts is the lowest level for which identifiable cash flows are largely independent of the cash flows of the other assets and liabilities. If such assets are considered to be impaired, the impairment loss to be recognized is measured as the amount by which the carrying value of the assets exceeds the estimated fair value, as determined using the income approach.

Dealer Network and Other Intangible Assets

Dealer network was an intangible asset that related to the dealer relationships that were acquired as part of the Security Networks Acquisition. Other intangible assets consisted of non-compete agreements signed by the seller of Security Networks and certain key Security Networks executives. These intangible assets were amortized on a straight-line basis over their estimated useful lives of 5 years. These intangible assets were fully amortized during 2018. The LiveWatch trade mark asset was initially to be amortized over 10 years. Upon the rollout of the Brinks Home Security brand in the second quarter of 2018, it was determined that the LiveWatch trade mark asset had no remaining useful life and the remaining asset balance was amortized. Amortization of dealer network and other intangible assets was $6,994,000, $9,830,000 and $9,830,000 for the fiscal years ended December 31, 2018, 2017 and 2016, respectively.

Goodwill

The Company accounts for its goodwill pursuant to the provisions of Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Topic 350, Intangibles-Goodwill and Other ("FASB ASC Topic 350"). In accordance with FASB ASC Topic 350, goodwill is not amortized, but rather tested for impairment at least annually, or earlier if an event occurs, or circumstances change, that indicate the fair value of a reporting unit may be below its carrying amount.

The Company assesses the recoverability of the carrying value of goodwill during the fourth quarter of its fiscal year, based on October 31 financial information, or whenever events or changes in circumstances indicate that the carrying amount of the goodwill of a reporting unit may not be fully recoverable. In early June 2018, the reportable segments known as MONI and LiveWatch were combined and presented as Brinks Home Security. As a result of the change in reportable segments, goodwill assigned to these former reporting units was reallocated and combined under the Brinks Home Security reporting unit. Recoverability is measured at the reporting unit level based on the provisions of FASB ASC Topic 350.

To the extent necessary, recoverability of goodwill at a reporting unit level is measured using a discounted cash flow model incorporating discount rates commensurate with the risks involved, which is classified as a Level 3 measurement under FASB ASC Topic 820, Fair Value Measurements and Disclosures. The key assumptions used in the discounted cash flow valuation model include discount rates, growth rates, cash flow projections and terminal value rates. Discount rates, growth rates and cash flow projections are the most sensitive and susceptible to change as they require significant management judgment. An impairment charge is recognized for the amount by which the carrying amount exceeds the reporting unit's fair value.

Deferred Financing Costs

Deferred financing costs are recorded as a reduction to long-term debt when the related debt is issued or when revolving credit lines increase the borrowing capacity of the Company. Deferred financing costs are amortized over the term of the related debt using the effective interest method.

Holdback Liability

The Company typically withholds payment of a designated percentage of the acquisition cost when it acquires subscriber accounts from dealers. The withheld funds are recorded as a liability until the guarantee period provided by the dealer has expired. The holdback is used as a reserve to cover any terminated subscriber accounts that are not replaced by the dealer during the guarantee period. At the end of the guarantee period, the dealer is responsible for any deficit or is paid the balance of the holdback.

Derivative Financial Instruments

The Company uses derivative financial instruments to manage exposure to movement in interest rates. The use of these financial instruments modifies the exposure of these risks with the intention of reducing the risk or cost. The Company does not use derivatives for speculative or trading purposes. The Company recognizes the fair value of all derivative instruments as either assets or liabilities at fair value on the consolidated balance sheets. Fair value is based on market quotes for similar instruments with the same duration. For derivative instruments that qualify for hedge accounting under the provisions of FASB ASC Topic 815, Derivatives and Hedging, unrealized gains and losses on the derivative instruments are reported in Accumulated other comprehensive income (loss), to the extent the hedges are effective, until the underlying transactions are recognized in earnings. Derivative instruments that do not qualify for hedge accounting are marked to market at the end of each accounting period with the change in fair value recorded in earnings.

Foreign Currency Translation

The functional currencies of the Company's foreign subsidiaries are their respective local currencies. Assets and liabilities of foreign operations were translated into U.S. dollars using exchange rates on the balance sheet date, and revenue and expenses were translated into U.S. dollars using average exchange rates for the period. The effects of the foreign currency translation adjustments were deferred and were included in stockholders' equity as a component of Accumulated other comprehensive loss. The Company dissolved all of its foreign subsidiaries in 2018. The cumulative foreign currency translation adjustment recorded in Accumulated other comprehensive loss was reclassified through Other expense (income), net on the consolidated statements of operations and comprehensive income (loss).

Revenue Recognition

Revenue is generated from security alarm monitoring and related services provided by Brinks Home Security. See note 5, Revenue Recognition, for the accounting policy under Topic 606 for periods commencing January 1, 2018.

Income Taxes

The Company accounts for income taxes under FASB ASC Topic 740, Income Taxes ("FASB ASC Topic 740"), which prescribes an asset and liability approach that requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been recognized in the Company's consolidated financial statements or tax returns. In estimating future tax consequences, the Company generally considers all expected future events other than proposed changes in the tax law or rates. Valuation allowances are established when necessary to reduce deferred tax assets to the amount expected to be realized. Income tax expense is the tax payable or refundable for the period plus or minus the change during the period in deferred tax assets and liabilities.

FASB ASC Topic 740 specifies the accounting for uncertainty in income taxes recognized in a company's consolidated financial statements and prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. In instances where the Company has taken or expects to take a tax position in its tax return and the Company believes it is more likely than not that such tax position will be upheld by the relevant taxing authority, the Company records the benefits of such tax position in its consolidated financial statements.

Share-Based Compensation

The Company accounts for share-based awards pursuant to FASB ASC Topic 718, Compensation-Stock Compensation ("FASB ASC Topic 718"), which requires companies to measure the cost of employee services received in exchange for an award of equity instruments (such as stock options and restricted stock) based on the grant-date fair value of the award, and to recognize that cost over the period during which the employee is required to provide service (usually the vesting period of the award). Forfeitures of awards are recognized as they occur.

The grant-date fair value of the Ascent Capital stock options granted to the Company’s employees was calculated using the Black-Scholes model. The expected term of the awards was calculated using the simplified method included in FASB ASC Topic 718. The volatility used in the calculation is based on the historical volatility of Ascent Capital and peer companies while the risk-free rate is based on Treasury Bonds with a term similar to that of the subject options. A dividend rate of zero was utilized for all granted stock options.

Basic and Diluted Earnings (Loss) Per Common Share — Series A and Series B

Basic earnings (loss) per common share ("EPS") is computed by dividing net income (loss) by the weighted average number of Series A and Series B common shares outstanding for the period. Diluted EPS is computed by dividing net income (loss) by the sum of the weighted average number of Series A and Series B common shares outstanding and the effect of dilutive securities, including the Company’s outstanding stock options, unvested restricted stock and warrant transactions using the treasury stock method and convertible securities using the if-converted method.

For the years ended December 31, 2018 and 2017, diluted EPS is computed the same as basic EPS because the Company recorded a loss from continuing operations, which would make potentially dilutive securities anti-dilutive. Diluted shares outstanding excluded 401,083 of stock options, unvested restricted shares and performance units for the year ended December 31, 2018 because their inclusion would have been anti-dilutive. Diluted shares outstanding excluded 259,915 stock options, unvested restricted shares and performance units for the year ended December 31, 2017 because their inclusion would have been anti-dilutive.



	Year Ended December 31,
	2018	2017	2016
Weighted average Series A and Series B shares	12,346,804	12,195,530	12,256,895

Estimates

The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates, assumptions and judgments that affect the reported amounts of revenue and expenses for each reporting period. The significant estimates made in preparation of the Company's consolidated financial statements primarily relate to valuation of subscriber accounts, deferred tax assets and goodwill. These estimates are based on management's best estimates and judgment. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors and adjusts them when facts and circumstances change. As the effects of future events cannot be determined with any certainty, actual results could differ from the estimates upon which the carrying values were based.

Recent Accounting Pronouncements	12 Months Ended
Recent Accounting Pronouncements	Dec. 31, 2018
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements In February 2016, the Financial Accounting Standards Board (the "FASB") issued ASU 2016-02, Leases (Topic 842) ("ASU 2016-02"). ASU 2016-02 requires the lessee to recognize assets and liabilities for leases with lease terms of more than twelve months. For leases with a term of twelve months or less, the Company is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. Recognition, measurement and presentation of expenses will depend on classification as a finance or operating lease. ASU 2016-02 requires a lessee of a finance lease to recognize interest expense and amortization expense of the associated asset. A lessee of an operating lease recognizes lease expense on a straight line basis over the lease term. ASU 2016-02 is effective for annual and interim reporting periods beginning after December 15, 2018. ASU 2018-10, Codification Improvements to Topic 842, Leases, clarifies certain aspects of ASU 2016-12 and the two updates will be adopted concurrently. ASU 2016-02 requires leases to be recognized and measured at the beginning of the earliest period presented using a modified retrospective approach upon adoption. However, ASU 2018-11, Leases (Topic 842): Targeted Improvements provides an alternative transition method by which leases are recognized at the date of adoption and a cumulative-effect adjustment to the opening balance of retained earnings is recognized in the period of adoption. The Company plans to adopt using this alternative and is currently evaluating the impact that these standards will have on its financial position, results of operations and cash flows.

Revenue Recognition

12 Months Ended

Dec. 31, 2018

Revenue from Contract with Customer [Abstract]

Revenue Recognition

Topic 606 amends and supersedes FASB Accounting Standards Codification ("ASC") Topic 605, Revenue Recognition ("Topic 605"). The core principle of Topic 606 is that revenue will be recognized when the transfer of promised goods or services to customers is made in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services.

Accounting Policy for Periods Commencing January 1, 2018

Brinks Home Security offers its subscribers professional alarm monitoring services, as well as interactive and home automation services, through equipment at the subscriber's site that communicates with Brinks Home Security’s alarm monitoring station and interfaces with other equipment at the site and third party technology companies for interactive and home automation services. These services are typically provided under alarm monitoring agreements (“AMAs”) between Brinks Home Security and the subscriber. The equipment at the site is either obtained independently from Brinks Home Security’s network of third party Authorized Dealers or directly from Brinks Home Security via its Direct to Consumer Channel. Brinks Home Security also offers equipment sales and installation services and, to its existing subscribers, maintenance services on existing alarm equipment. Additionally, Brinks Home Security collects fees for contract monitoring, which are services provided to other security alarm companies for monitoring their accounts on a wholesale basis and other fees from subscribers for late fee or insufficient fund charges.

Revenue under subscriber AMAs is allocated to alarm monitoring revenue and, if applicable, product and installation revenue based on the stand alone selling prices (“SSP”) of each performance obligation as a percentage of the total SSP of all performance obligations. Allocated alarm monitoring revenue is recognized as the monthly service is provided. Allocated product and installation revenue is recognized when the product sale is complete or shipped and the installation service is provided, typically at inception of the AMA. Product and installation revenue is not applicable to AMA's acquired from Authorized Dealers in their initial term. Any cash not received from the subscriber at the time of product sale and installation is recognized as a contract asset at inception of the AMA and is subsequently amortized over the subscriber contract term as a reduction of the amounts billed for professional alarm monitoring, interactive and home automation services. If a subscriber cancels the AMA within the negotiated term, any existing contract asset is determined to be impaired and is immediately expensed in full to Selling, general and administrative expense on the condensed consolidated statement of operations.

Maintenance services are billed and recognized as revenue when the services are completed in the home and agreed to by the subscriber under the subscriber AMA. Contract monitoring fees are recognized as alarm monitoring revenue as the monitoring service is provided. Other fees are recognized as other revenue when billed to the subscriber which coincides with the timing of when the services are provided.

Disaggregation of Revenue

Revenue is disaggregated by source of revenue as follows (in thousands):



	Year Ended December 31,
	2018		2017	2016
Alarm monitoring revenue	$	498,236	537,399	552,590
Product and installation revenue	38,455		12,308	13,264
Other revenue	3,667		3,748	4,518
Total Net revenue	$	540,358	553,455	570,372

Contract Balances

The following table provides information about receivables, contract assets and contract liabilities from contracts with customers (in thousands):



	December 31, 2018		At adoption
Trade receivables, net	$	13,121	12,645
Contract assets, net - current portion (a)	13,452		14,197
Contract assets, net - long-term portion (b)	16,154		10,377
Deferred revenue	13,060		12,892

(a) Amount is included in Prepaid and other current assets in the consolidated balance sheets.

(b) Amount is included in Other assets in the consolidated balance sheets.

Changes in Accounting Policies

The Company adopted Topic 606, effective January 1, 2018, using the modified retrospective transition method. Under the modified retrospective transition method, the Company evaluated active AMAs on the adoption date as if each AMA had been accounted for under Topic 606 from its inception. Some revenue related to AMAs originated through Brinks Home Security's Direct to Consumer Channel or through extensions that would have been recognized in future periods under Topic 605 were recast under Topic 606 as if revenue had been accelerated and recognized in prior periods, as it was allocated to product and installation performance obligations. A contract asset was recorded as of the adoption date for any cash that has yet to be collected on the accelerated revenue. As this transition method requires that the Company not adjust historical reported revenue amounts, the accelerated revenue that would have been recognized under this method prior to the adoption date was recorded as an adjustment to opening retained earnings and, thus, will not be recognized as revenue in future periods as previously required under Topic 605. Therefore, the comparative information has not been adjusted and continues to be reported under Topic 605.

Under Topic 605, revenue provided under the AMA was recognized as the services were provided, based on the recurring monthly revenue amount billed for each month under contract. Product, installation and service revenue generally was recognized as billed and incurred. Under Topic 606, the Company concluded that certain product and installation services sold or provided to our customers at AMA inception are capable of being distinct and are distinct within the context of the contract. As such, when Brinks Home Security initiates an AMA with a customer directly and provides equipment and installation services, each component is considered a performance obligation that must have revenue allocated accordingly. The allocation is based on the SSP of each performance obligation as a percentage of the total SSP of all performance obligations multiplied by the total consideration, or cash, expected to be received over the contract term. These AMAs may relate to new customers originated by Brinks Home Security through its Direct to Consumer Channel or existing customers who agree to new contract terms through customer service offerings. For AMAs with multiple performance obligations, management notes that a certain amount of the revenue billed on a recurring monthly basis is recognized earlier under Topic 606 than it was recognized under Topic 605, as a portion of that revenue is allocated to the equipment sale and installation, which is satisfied upon delivery of the product and performance of the installation services at AMA inception.

Revenue on AMAs originated through the Authorized Dealer program are not impacted by Topic 606 in their initial term, as the customer contracts for the equipment sale and installation separately with the Authorized Dealer prior to Brinks Home Security purchasing the AMA from the Authorized Dealer. Revenue on these customers is recognized as the service is provided based on the recurring monthly revenue amount billed for each month of the AMA. Maintenance service revenue for repair of existing alarm equipment at the subscribers' premises will continue to be billed and recognized based on their SSP at the time Brinks Home Security performs the services.

Topic 606 also requires the deferral of incremental costs of obtaining a contract with a customer. Certain direct and incremental costs were capitalized under Topic 605, including on new AMAs obtained in connection with Moves Costs. Under Topic 606, Moves Costs are expensed as incurred to accompany the allocated revenue recognized upon product and installation performance obligations recognized at the AMA inception. There are no other significant changes in contract costs that are capitalized or the period over which they are expensed.

Impacts on Consolidated Financial Statements

The significant effects of adopting Topic 606 are changes to Prepaid and other current assets, Subscriber accounts, net, Other assets, net, Net revenue, Cost of services, Selling, general and administrative and Amortization of subscriber accounts for the period beginning January 1, 2018 for AMAs initiated by Brinks Home Security with the customer directly with multiple performance obligations, as a portion of that revenue is allocated to the equipment sale and installation, which is satisfied upon delivery of the product and performance of the installation services at AMA inception.

The following tables summarize the impacts of adopting Topic 606 on the Company’s consolidated financial statements as of and for the year ended December 31, 2018 (in thousands):

i. Consolidated balance sheets



	Impact of changes in accounting policies
	As reported December 31, 2018			Adjustments		Balances without adoption of Topic 606
Assets
Current assets:
Cash and cash equivalents	$	105,921		—		105,921
Restricted cash	189			—		189
Trade receivables, net of allowance for doubtful accounts	13,121			—		13,121
Prepaid and other current assets	32,202			(13,452	)	18,750
Total current assets	151,433			(13,452	)	137,981
Property and equipment, net of accumulated depreciation	36,549			—		36,549
Subscriber accounts and deferred contract acquisition costs, net of accumulated amortization	1,195,463			45,970		1,241,433
Deferred income tax asset, net	783			—		783
Other assets, net	29,316			(16,154	)	13,162
Total assets	$	1,413,544		16,364		1,429,908
Liabilities and Stockholders’ (Deficit) Equity
Current liabilities:
Accounts payable	$	12,668		—		12,668
Other accrued liabilities	36,006			—		36,006
Deferred revenue	13,060			1,347		14,407
Holdback liability	11,513			—		11,513
Current portion of long-term debt	1,895,175			—		1,895,175
Total current liabilities	1,968,422			1,347		1,969,769
Non-current liabilities:
Long-term debt	—			—		—
Long-term holdback liability	1,770			—		1,770
Derivative financial instruments	6,039			—		6,039
Other liabilities	2,742			—		2,742
Total liabilities	1,978,973			1,347		1,980,320
Commitments and contingencies
Stockholders’ (deficit) equity:
Preferred stock	—			—		—
Series A common stock	121			—		121
Series B common stock	4			—		4
Series C common stock	—			—		—
Additional paid-in capital	1,425,325			—		1,425,325
Accumulated deficit	(1,998,487		)	15,017		(1,983,470	)
Accumulated other comprehensive income, net	7,608			—		7,608
Total stockholders’ (deficit) equity	(565,429		)	15,017		(550,412	)
Total liabilities and stockholders’ (deficit) equity	$	1,413,544		16,364		1,429,908

ii. Consolidated statements of operations and comprehensive income (loss)



	Impact of changes in accounting policies
	As reported year ended December 31, 2018			Adjustments		Balances without adoption of Topic 606
Net revenue	$	540,358		(8,149	)	532,209
Operating expenses:
Cost of services	128,939			(6,263	)	122,676
Selling, general and administrative, including stock-based and long-term incentive compensation	130,637			(1,670	)	128,967
Amortization of subscriber accounts, deferred contract acquisition costs and other intangible assets	211,639			7,487		219,126
Depreciation	11,457			—		11,457
Loss on goodwill impairment	563,549			—		563,549
	1,046,221			(446	)	1,045,775
Operating loss	(505,863		)	(7,703	)	(513,566	)
Other expense (income), net:
Interest income	(2,439		)	—		(2,439	)
Interest expense	191,202			—		191,202
Unrealized loss on derivative financial instruments	3,151			—		3,151
Refinancing expense	13,356			—		13,356
Other expense (income), net	(1,478		)	—		(1,478	)
	203,792			—		203,792
Loss before income taxes	(709,655		)	(7,703	)	(717,358	)
Income tax expense	(11,611		)	—		(11,611	)
Net loss	(698,044		)	(7,703	)	(705,747	)
Other comprehensive income (loss):
Foreign currency translation adjustments	758			—		758
Unrealized holding loss on marketable securities, net	(3,900		)	—		(3,900	)
Unrealized gain on derivative contracts, net	14,378			—		14,378
Total other comprehensive income, net of tax	11,236			—		11,236
Comprehensive loss	$	(686,808	)	(7,703	)	(694,511	)

iii. Consolidated statements of cash flows



	Impact of changes in accounting policies
	As reported year ended December 31, 2018			Adjustments		Balances without adoption of Topic 606
Cash flows from operating activities:
Net loss	$	(698,044	)	(7,703	)	(705,747	)
Adjustments to reconcile net loss to net cash provided by operating activities:
Amortization of subscriber accounts, deferred contract acquisition costs and other intangible assets	211,639			7,487		219,126
Depreciation	11,457			—		11,457
Stock-based and long-term incentive compensation	1,451			—		1,451
Deferred income tax expense	(14,094		)	—		(14,094	)
Non-cash legal settlement reserve (related insurance recovery)	(2,750		)	—		(2,750	)
Amortization of debt discount and deferred debt costs	41,430			—		41,430
Refinancing expense	13,356			—		13,356
Unrealized loss on derivative financial instruments	3,151			—		3,151
Bad debt expense	12,300			—		12,300
Goodwill impairment	563,549			—		563,549
Other non-cash activity, net	(2,199		)	—		(2,199	)
Changes in assets and liabilities:
Trade receivables	(12,776		)	—		(12,776	)
Prepaid expenses and other assets	(14,576		)	6,379		(8,197	)
Subscriber accounts - deferred contract acquisition costs	(5,418		)	89		(5,329	)
Payables and other liabilities	(15,545		)	(581	)	(16,126	)
Net cash provided by operating activities	92,931			5,671		98,602
Cash flows from investing activities:
Capital expenditures	(14,903		)	—		(14,903	)
Cost of subscriber accounts acquired	(140,450		)	(5,671	)	(146,121	)
Purchases of marketable securities	(39,022		)	—		(39,022	)
Proceeds from sale of marketable securities	143,316			—		143,316
Net cash used in investing activities	(51,059		)	(5,671	)	(56,730	)
Cash flows from financing activities:
Proceeds from long-term debt	248,800			—		248,800
Payments on long-term debt	(184,100		)	—		(184,100	)
Payments of financing costs	(10,739		)	—		(10,739	)
Value of shares withheld for share-based compensation	(188		)	—		(188	)
Net cash provided by financing activities	53,773			—		53,773
Net increase in cash, cash equivalents and restricted cash	95,645			—		95,645
Cash, cash equivalents and restricted cash at beginning of period	10,465			—		10,465
Cash, cash equivalents and restricted cash at end of period	$	106,110		—		106,110

Investments in Marketable Securities

12 Months Ended

Dec. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Investments in Marketable Securities

In the third quarter of 2018, Ascent Capital divested of all marketable securities, which primarily consisted of diversified corporate bond funds. The following table presents a summary of amounts recorded on the consolidated balance sheets (amounts in thousands):



	As of December 31, 2018
	Cost Basis		Unrealized Gains	Unrealized Losses	Total
Equity securities	$	—	—	—	—
Mutual funds	—		—	—	—
Ending balance	$	—	—	—	—

	As of December 31, 2017
	Cost Basis		Unrealized Gains	Unrealized Losses	Total
Equity securities	$	3,432	2,039	—	5,471
Mutual funds (a)	98,628		1,859	—	100,487
Ending balance	$	102,060	3,898	—	105,958


(a)	Primarily consists of corporate bond funds.

The following table provides the realized and unrealized investment gains and losses recognized in the consolidated statements of operations (amounts in thousands):



	Year end December 31,
	2018		2017	2016
Net gains and (losses) recognized during the period on marketable securities	$	2,234	2,828	1,956
Less: Net gains and (losses) recognized during the period on marketable securities sold during the period	$	2,234	1	869
Unrealized gains and (losses) recognized during the reporting period on marketable securities still held at the reporting date	$	—	2,827	1,087

Goodwill

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

The following table provides the activity and balances of goodwill by reporting unit (amounts in thousands):



	MONI			LiveWatch			Brinks Home Security			Total
Balance at December 31, 2016	$	527,502		$	36,047		$	—		$	563,549
Period activity	—			—			—			—
Balance at December 31, 2017	$	527,502		$	36,047		$	—		$	563,549
Goodwill impairment	(214,400		)	—			—			(214,400		)
Reporting unit reallocation	(313,102		)	(36,047		)	349,149			—
Goodwill impairment	—			—			(349,149		)	(349,149		)
Balance at December 31, 2018	$	—		$	—		$	—		$	—

The Company accounts for its goodwill pursuant to the provisions of FASB ASC Topic 350, Intangibles - Goodwill and Other ("FASB ASC Topic 350"). In accordance with FASB ASC Topic 350, goodwill is not amortized, but rather tested for impairment annually, or earlier if an event occurs, or circumstances change, that indicate the fair value of a reporting unit may be below its carrying amount.

As of May 31, 2018, the Company determined that a triggering event had occurred due to a sustained decrease in the Company's share price. In response to the triggering event, the Company performed a quantitative impairment test for both the MONI and LiveWatch reporting units. Fair value was determined using a combination of an income-based approach (using a discount rate of 8.50%) and a market-based approach for the MONI reporting unit and an income-based approach (using a discount rate of 8.50%) for the LiveWatch reporting unit. Based on the analysis, the fair value of the LiveWatch reporting unit substantially exceeded its carrying value, while the carrying amount of the MONI reporting unit exceeded its estimated fair value, which indicated an impairment at the MONI reporting unit.

The Company early adopted ASU 2017-04, which eliminated Step 2 from the goodwill impairment test, and as such, an impairment charge is recognized for the amount by which the carrying amount exceeds the reporting unit's fair value. Applying this methodology, we recorded an impairment charge of $214,400,000 for the MONI reporting unit during the three months ended June 30, 2018. Factors leading to this impairment are primarily the experience of overall lower account acquisition in recent periods. Using this information, we adjusted the growth outlook for this reporting unit, which resulted in reductions in future cash flows and a lower fair value calculation under the income-based approach. Additionally, decreases in observable market share prices for comparable companies in the quarter reduced the fair value calculated under the market-based approach.

In early June 2018, the reportable segments known as MONI and LiveWatch were combined and presented as Brinks Home Security. Refer to Note 1, Basis of Presentation, for further discussion on the change in reportable segments. As a result of the change in reportable segments, goodwill assigned to these former reporting units of $313,102,000 and $36,047,000, for MONI and LiveWatch, respectively, have been reallocated and combined as of June 30, 2018 under the Brinks Home Security reporting unit.

In connection with the Company's annual goodwill impairment assessment, in which the Company performed a quantitative test in the fourth quarter of its fiscal year, based on October 31 balances, the carrying amount of the Brinks Home Security reporting unit exceeded its estimated fair value. Fair value was determined using an income-based approach (using a discount rate of 8.50%) for the Brinks Home Security reporting unit. Since the carrying amount exceeded the reporting unit's fair value, we recorded an additional impairment charge of $349,149,000, the amount of the remaining carrying value of goodwill. This impairment is primarily attributable to projected decreasing cash flows resulting from a declining customer base. The Company’s projections were revised based on recent historical trends as well as other various outlook considerations, which resulted in reductions in future cash flows and enterprise valuation.