Mediacom Broadband 10-K 8 Mar 19 2018 FY Annual report Financial data

Document and Entity Information

Document and Entity Information	12 Months Ended
	Dec. 31, 2018USD ($)shares
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	FY
Trading Symbol	MCCCB
Entity Registrant Name	MEDIACOM BROADBAND LLC
Entity Central Index Key	1,161,364
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	No
Entity Voluntary Filers	Yes
Entity Filer Category	Non-accelerated Filer
Entity shell company	false
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Common Stock, Shares Outstanding | shares	0
Entity Public Float | $	$ 0

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
CURRENT ASSETS
Cash	$ 29,964	$ 12,606
Accounts receivable, net of allowance for doubtful accounts of $3,554 and $3,364	40,252	71,994
Prepaid expenses and other current assets	24,347	22,881
Total current assets	94,563	107,481
Property, plant and equipment, net of accumulated depreciation of $1,730,750 and $1,663,609	850,638	825,348
Franchise rights	1,176,364	1,176,908
Goodwill	195,855	195,945
Other assets, net of accumulated amortization of $5,761 and $4,788	14,312	11,001
Total assets	2,331,732	2,316,683
CURRENT LIABILITIES
Accounts payable, accrued expenses and other current liabilities	146,080	147,739
Accounts payable-affiliates	20,104	22,154
Deferred revenue-current	22,345	41,382
Current portion of long-term debt	20,500	20,500
Total current liabilities	209,029	231,775
Long-term debt, net (less current portion)	1,190,557	1,537,080
Deferred revenue - non-current	8,237
Total liabilities	1,407,823	1,768,855
Commitments and contingencies (Note 10)
PREFERRED MEMBERS' INTEREST (Note 7)	150,000	150,000
MEMBER'S EQUITY
Capital contributions (distributions)	99,358	(98,268)
Retained earnings	674,551	496,096
Total member's equity	773,909	397,828
Total liabilities, preferred members' interest and member's equity	$ 2,331,732	$ 2,316,683

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 3,554	$ 3,364
Accumulated depreciation on property, plant and equipment	1,730,750	1,663,609
Accumulated amortization on other assets	$ 5,761	$ 4,788

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Statement [Abstract]
Revenues	$ 1,100,676	$ 1,059,086	$ 1,033,239
Costs and expenses:
Service costs (exclusive of depreciation and amortization)	456,527	439,990	419,406
Selling, general and administrative expenses	197,594	194,629	193,669
Management fee expense	24,000	21,665	20,800
Depreciation and amortization	152,695	172,333	147,114
Operating income	269,860	230,469	252,250
Interest expense, net	(57,147)	(70,089)	(78,725)
(Loss) gain on derivatives, net	(2,154)	2,828	1,203
Loss on early extinguishment of debt (Note 6)	(12,216)	(2,623)	(1,156)
Other expense, net	(657)	(1,329)	(1,686)
Net income	197,686	159,256	171,886
Dividend to preferred members (Note 7)	(18,000)	(18,000)	(18,000)
Net income applicable to member	$ 179,686	$ 141,256	$ 153,886

Consolidated Statements of Chan

Consolidated Statements of Changes in Member's Equity - USD ($) $ in Thousands	Total	Capital Distributions [Member]	Retained Earnings [Member]
Balance at Dec. 31, 2015	$ 95,461	$ (105,493)	$ 200,954
Net income	171,886		171,886
Dividend payments to related party on preferred members' interest	(18,000)		(18,000)
Capital contributions from parent	75,000	75,000
Capital distributions to parent	(7,000)	(7,000)
Other	145	145
Balance at Dec. 31, 2016	317,492	(37,348)	354,840
Net income	159,256		159,256
Dividend payments to related party on preferred members' interest	(18,000)		(18,000)
Capital contributions from parent	60,000	60,000
Capital distributions to parent	(121,050)	(121,050)
Other	130	130
Balance at Dec. 31, 2017	397,828	(98,268)	496,096
Net income	197,686		197,686
Dividend payments to related party on preferred members' interest	(18,000)		(18,000)
Capital contributions from parent	208,000	208,000
Capital distributions to parent	(10,500)	(10,500)
Revenue recognition adoption (Note 12)	(1,231)		(1,231)
Other	126	126
Balance at Dec. 31, 2018	$ 773,909	$ 99,358	$ 674,551

Consolidated Statements of Cash

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 income	$ 197,686	$ 159,256	$ 171,886
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation and amortization	152,695	172,333	147,114
Deferred compensation	818
Loss (gain) on derivatives, net	2,154	(2,828)	(1,203)
Loss on early extinguishment of debt	2,651	2,623	1,156
Amortization of deferred financing costs	4,257	3,839	5,617
Debt extinguishment costs	9,565
Changes in assets and liabilities:
Accounts receivable, net	(1,106)	(4,270)	2,019
Prepaid expenses and other assets	7,199	(7,490)	(2,414)
Accounts payable, accrued expenses and other current liabilities	(4,950)	(5,543)	5,892
Accounts payable-affiliates	(2,050)	7,302	4,060
Deferred revenue - current	(490)	1,526	1,952
Deferred revenue - non-current	275
Other non-current liabilities		(1,486)	(45)
Net cash flows provided by operating activities	368,704	325,262	336,034
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(178,061)	(181,477)	(179,696)
Change in accrued property, plant and equipment	3,357	1,825	(3,841)
Proceeds from sale of assets	991	472	248
Net cash flows used in investing activities	(173,713)	(179,180)	(183,289)
CASH FLOWS FROM FINANCING ACTIVITIES:
New borrowings of bank debt	438,125	1,599,538	378,575
Repayment of bank debt	(490,750)	(1,650,538)	(580,325)
Redemption of senior notes	(300,000)
Dividend payments on preferred members' interest (Note 7)	(18,000)	(18,000)	(18,000)
Capital contributions from parent (Note 8)	208,000	60,000	75,000
Capital distributions to parent (Note 8)	(10,500)	(121,050)	(7,000)
Debt extinguishment costs	(9,565)
Financing costs		(13,302)
Other financing activities	5,057	(4,332)	2,771
Net cash flows used in financing activities	(177,633)	(147,684)	(148,979)
Net change in cash	17,358	(1,602)	3,766
CASH, beginning of year	12,606	14,208	10,442
CASH, end of year	29,964	12,606	14,208
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid during the period for interest, net of amounts capitalized	59,172	$ 69,809	$ 76,738
Non-cash items:
Accounts receivable/deferred revenue - adjustment	32,848
Prepaid expenses and other current assets/deferred revenue - adjustment	15,756
Prepaid expenses and other current assets-reclassification	7,371
Deferred revenue-current/non-current-reclassification	7,962
Accounts payable/deferred revenue current-reclassification	$ 6,507

Organization

Organization	12 Months Ended
	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	1. ORGANIZATION Mediacom Broadband LLC (“Mediacom Broadband,” and collectively with its subsidiaries, “we,” “our” or “us”) is a Delaware limited liability company wholly-owned by Mediacom Communications Corporation (“MCC”). MCC is involved in the acquisition and operation of cable systems serving smaller cities and towns in the United States, and its cable systems are owned and operated through our operating subsidiaries and those of Mediacom LLC, a New York limited liability company wholly-owned by MCC. As limited liability companies, we and Mediacom LLC are not subject to income taxes and, as such, are included in the consolidated federal and state income tax returns of MCC, a C corporation. Our principal operating subsidiaries conduct all of our consolidated operations and own substantially all of our consolidated assets. Our operating subsidiaries are separate and distinct legal entities and have no obligation, contingent or otherwise, to make funds available to us. We rely on our parent, MCC, for various services such as corporate and administrative support. Our financial position, results of operations and cash flows could differ from those that would have resulted had we operated autonomously or as an entity independent of MCC. See Notes 8 and 9. Mediacom Broadband Corporation (“Broadband Corporation”), a Delaware corporation wholly-owned by us, co-issued,

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Preparation of Consolidated Financial Statements The consolidated financial statements include the accounts of us and our subsidiaries. All intercompany transactions and balances have been eliminated. Comprehensive income is equal to net income for all periods presented. The preparation of the consolidated financial statements in conformity with generally accepted accounting principles in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The accounting estimates that require management’s most difficult and subjective judgments include: assessment and valuation of intangibles, accounts receivable allowance, useful lives of property, plant and equipment and capitalized labor. Actual results could differ from those and other estimates. Reclassifications Certain reclassifications have been made to prior year amounts to conform to the current year presentation. Revenue Recognition Video, high speed data (“HSD”), phone and business services revenues are recognized when the services are provided to our customers. We generally bill customers in advance for the services and equipment they have chosen to use and record such amounts as deferred revenue until the services are provided and the equipment is used. Deposits and up-front non-refundable up-front Allowance for Doubtful Accounts The allowance for doubtful accounts represents our best estimate of probable losses in the accounts receivable balance. The allowance is based on the number of days outstanding, customer balances, recoveries, historical experience and other currently available information. Concentration of Credit Risk Our accounts receivable are comprised of amounts due from customers in varying regions throughout the United States. Concentration of credit risk with respect to these receivables is limited due to the large number of customers comprising our customer base and their geographic dispersion. We invest our cash with high quality financial institutions. Property, Plant and Equipment Property, plant and equipment are recorded at cost. Additions to property, plant and equipment generally include material, labor and indirect costs. Depreciation is calculated on a straight-line basis over the following useful lives: Buildings 10 - 40 years Leasehold improvements Lesser of: life of respective lease or life of asset Cable systems, equipment and customer devices 3-20 Vehicles 4-5 Furniture, fixtures, and office equipment 5 years We capitalize improvements that extend asset lives and expense repairs and maintenance as incurred. At the time of retirements, write-offs, sales or other dispositions of property, the original cost and related accumulated depreciation are removed from the respective accounts and any resulting gains or losses are included in depreciation and amortization expense in the consolidated statement of operations. We capitalize the costs associated with the construction of cable transmission and distribution facilities, new customer installations and indirect costs associated with our phone service. Costs include direct labor and material, as well as certain indirect costs including capitalized interest. We perform periodic evaluations of the estimates used to determine the amount and extent that such costs are capitalized. Any changes to these estimates, which may be significant, are applied in the period in which the evaluations were completed. The costs of disconnecting service at a customer’s dwelling or reconnecting to a previously installed dwelling are charged as expense in the period incurred. Costs associated with subsequent installations of additional services not previously installed at a customer’s dwelling are capitalized to the extent such costs are incremental and directly attributable to the installation of such additional services. See Note 3. Capitalized Software Costs We account for internal-use 350-40- Intangibles-Goodwill and Other: Internal-Use Marketing and Promotional Costs Marketing and promotional costs are expensed as incurred and were $39.4 million, $38.6 million and $35.7 million for the years ended December 31, 2018, 2017 and 2016, respectively. Intangible Assets Our cable systems operate under non-exclusive Intangibles — Goodwill and Other We follow the provisions of ASC 350 to test our goodwill and franchise rights for impairment. We assess the fair values of our reporting unit using the Excess Earnings Method of the Income Approach as our discounted cash flow (“DCF”) methodology, under which the fair value of cable franchise rights are determined in a direct manner. We employ the Multi-Period Excess Earnings Method to calculate the fair values of our cable franchise rights, using unobservable inputs (Level 3). This assessment involves significant judgment, including certain assumptions and estimates that determine future cash flow expectations and other future benefits, which are consistent with the expectations of buyers and sellers of cable systems in determining fair value. These assumptions and estimates include discount rates, estimated growth rates, terminal growth rates, comparable company data, revenues per customer, market penetration as a percentage of homes passed and operating margin. We also consider market transactions, market valuations, research analyst estimates and other valuations using multiples of operating income before depreciation and amortization to confirm the reasonableness of fair values determined by the DCF methodology. We also employ the Greenfield model to corroborate the fair values of our cable franchise rights determined under the In-use Based on the guidance outlined in ASC 350, we have determined that the unit of accounting or reporting unit, for testing goodwill and franchise rights is Mediacom Broadband. Comprising cable system clusters across several states, Mediacom Broadband is at the financial reporting level that is managed and reviewed by the corporate office (i.e., chief operating decision maker) including our determination as to how we allocate capital resources and utilize the assets. The reporting unit level also reflects the level at which the purchase method of accounting for our acquisitions was originally recorded. In accordance with ASC 350, we are required to determine goodwill impairment using a two-step The impairment test for our franchise rights and other intangible assets not subject to amortization consists of a comparison of the fair value of the intangible asset with its carrying value. If the carrying value of the intangible asset exceeds its fair value, the excess is recognized as an impairment loss. Since our adoption of ASC 350 in 2002, we have not recorded any impairments as a result of our impairment testing. We monitor the reporting unit for impairment throughout each of the reporting periods. We completed our most recent impairment test as of October 1, 2018, which reflected no impairment of our franchise rights, goodwill or other intangible assets. For the years ended December 31, 2018 and 2017, respectively, no impairments were recorded. We could record impairments in the future if there are changes in the long-term fundamentals of our business, in general market conditions or in the regulatory landscape that could prevent us from recovering the carrying value of our long-lived intangible assets. The economic conditions affecting the U.S. economy, and how that may impact the fundamentals of our business, may have a negative impact on the fair values of the assets in our reporting unit. We have evaluated whether there are any adverse qualitative factors surrounding our Mediacom Broadband reporting unit indicating that a goodwill impairment may exist as of December 31, 2018. We do not believe that it is “more likely than not” that a goodwill impairment exists. As such, we have not performed Step 2 of the goodwill impairment test. The following table details changes in the carrying value of goodwill for the years ended December 31, 2018 and 2017 (dollars in thousands): Balance - December 31, 2016 $ 195,945 Acquisitions — Dispositions — Balance - December 31, 2017 $ 195,945 Acquisitions — Dispositions (90 ) Balance - December 31, 2018 $ 195,855 Segment Reporting ASC 280 — Segment Reporting Accounting for Derivative Instruments We account for derivative instruments in accordance with ASC 815 — Derivatives and Hedging one-to-one Accounting for Asset Retirement Obligations We adopted ASC 410 — Asset Retirement Obligations rights-of-way Upon adoption of ASC 410, we determined that in certain instances, we are obligated by contractual terms or regulatory requirements to remove facilities or perform other remediation activities upon the retirement of our assets. We initially recorded a $1.8 million asset in property, plant and equipment and a corresponding liability of $1.8 million. As of both December 31, 2018 and 2017, the corresponding asset, net of accumulated amortization, was $0. See Note 3. Accounting for Long-Lived Assets In accordance with ASC 360 — Property, Plant and Equipment Programming Costs We have various fixed-term carriage contracts to obtain programming for our cable systems from content suppliers whose compensation is generally based on a fixed monthly fee per video customer. These programming contracts are subject to negotiated renewal. Programming costs are recognized when we distribute the related programming and are usually payable each month based on calculations performed by us and are subject to adjustments based on the results of periodic audits by the content suppliers. Historically, such audit adjustments have been immaterial to our total programming costs. Financial incentives, when received, are deferred within non-current Recent Accounting Pronouncements Accounting Pronouncements Adopted January 1, 2018 In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09 2014-09”) Revenue from Contracts with Customers 2014-09 non-current 2014-09. In January 2016, the FASB issued ASU 2016-01 Recognition and Measurement of Financial Assets and Financial Liabilities (“ASU 2016-01”). 2016-01 available-for-sale) 2016-01. re-measured 2016-01 2016-01 In August 2016, the FASB issued ASU 2016-15 Statement of Cash Flows – Clarification of Certain Cash Receipts and Cash Payments 2016-15”). Statement of Cash Flows 2016-15 2016-15 2016-15 Accounting Pronouncements with Future Adoption Dates In February 2016, the FASB issued Accounting Standards Update No. 2016-02, Leases 2016-02”), on-balance ASU 2016-02 is unrecorded off-balance sheet right-of-use We expect to adopt the new standard on its effective date, January 1, 2019. A modified retrospective transition approach is required for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, with certain practical expedients available. While we are completing our assessment of the effect of adoption, we currently believe the most significant changes relate to: the recognition of new ROU assets and lease liabilities on our balance sheet for office equipment, real estate, and other assets as determined; and to a much lesser extent, (i) the de-recognition build-to-suit de-recognition build-to-suit • Recognize additional operating liabilities with corresponding ROU assets of the same amount based on the present value of the remaining minimum rental payments under current leasing standards for existing operating leases. • To a lesser extent, de-recognize • Also, to a lesser extent, de-recognize build-to-suit We continue to finalize our assessment of all of the potential impacts that the adoption of ASU 2016-02 will We have not finalized the impact that the adoption will have on our financial statements in the first quarter of 2019. We expect that the balance sheet impact of the adoption will be material to our financial position. We do not expect that the income statement impact of the adoption will be material to our statement of operations. We expect to avail ourselves of all of the practical expedients afforded under ASU 2016-02 non-lease In June 2016, the FASB issued Accounting Standards Update 2016-13 Financial Instruments — Credit Losses (Topic 326) 2016-13”). 2016-13 2016-13 2016-13 2016-13 2016-13 2016-13 In January 2017, the FASB issued ASU 2017-04 Intangibles – Goodwill and Other 2017-04”). 2017-04 2017-04 In January 2018, the FASB issued ASU 2018-01 Leases — Land Easement Practical Expedient for Transition to Topic 842 2018-01”). 2018-01 Leases 2018-01 2016-02, 2016-02. 2018-01 2016-02, 2018-01. In July 2018, the FASB issued ASU 2018-11- Leases (Topic 842) – Targeted Improvements 2018-11”). 2018-11 2016-02 2018-11 2018-11 2018-11 2018-11 2018-11 In August 2018, the FASB issued ASU 2018-15 — Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract 2018-15”). 2018-15 internal-use internal-use 2018-15. 2018-15. 2018-15 2018-15

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2018
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	3. PROPERTY, PLANT AND EQUIPMENT As of December 31, 2018 and 2017, property, plant and equipment consisted of (dollars in thousands): December 31, December 31, 2018 2017 Cable systems, equipment and customer devices $ 2,467,534 $ 2,362,459 Vehicles 49,784 46,696 Buildings and leasehold improvements 38,366 37,810 Furniture, fixtures and office equipment 17,919 34,207 Land and land improvements 7,785 7,785 Property, plant and equipment, gross $ 2,581,388 $ 2,488,957 Accumulated depreciation (1,730,750 ) (1,663,609 ) Property, plant and equipment, net $ 850,638 $ 825,348 Depreciation expense related to fixed assets for the years ended December 31, 2018, 2017 and 2016 was $152.5 million, $172.2 million and $147.0 million, respectively. As of both December 31, 2018 and 2017, we had no property under capitalized leases. We incurred gross interest costs of $59.5 million, $72.3 million and $80.9 million for the years ended December 31, 2018, 2017 and 2016, respectively, of which $0.8 million, $1.2 million and $1.3 million was capitalized during the years ended December 31, 2018, 2017 and 2016, respectively. See Note 2.

Fair Value

Fair Value	12 Months Ended
	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value	4. FAIR VALUE The tables below set forth our financial assets and liabilities measured at fair value on a recurring basis using a market-based approach. Our financial assets and liabilities, all of which represent interest rate exchange agreements (which we refer to as “interest rate swaps”) have been categorized according to the three-level fair value hierarchy established by ASC 820 – Fair Value Measurement • Level 1 — Quoted market prices in active markets for identical assets or liabilities. • Level 2 — Observable market based inputs or unobservable inputs that are corroborated by market data. • Level 3 — Unobservable inputs that are not corroborated by market data. Fair Value as of December 31, 2018 Level 1 Level 2 Level 3 Total Assets Interest rate exchange agreements $ — $ — $ — $ — Liabilities Interest rate exchange agreements $ — $ — $ — $ — Fair Value as of December 31, 2017 Level 1 Level 2 Level 3 Total Assets Interest rate exchange agreements $ — $ 2,154 $ — $ 2,154 Liabilities Interest rate exchange agreements $ — $ — $ — $ — The fair value of our interest rate swaps represents the estimated amount that we would receive or pay to terminate such agreements, taking into account projected interest rates, based on quoted London Interbank Offered Rate (“LIBOR”) futures and the remaining time to maturity. While our interest rate swaps are subject to contractual terms that provide for the net settlement of transactions with counterparties, we do not offset assets and liabilities under these agreements for financial statement presentation purposes, and assets and liabilities are reported on a gross basis. As of December 31, 2018, we had no interest rate swaps. As of December 31, 2017, we recorded a current asset of $2.2 million and no current liability, long-term asset or long-term liability. As a result of the changes in the mark-to-market

Accounts Payable, Accrued Expen

Accounts Payable, Accrued Expenses and Other Current Liabilities	12 Months Ended
	Dec. 31, 2018
Payables and Accruals [Abstract]
Accounts Payable, Accrued Expenses and Other Current Liabilities	5. ACCOUNTS PAYABLE, ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES Accounts payable, accrued expenses and other current liabilities consisted of the following as of December 31, 2018 and 2017 (dollars in thousands): December 31, December 31, 2018 2017 Accrued programming costs $ 33,335 $ 28,840 Accounts payable - trade 32,237 39,415 Accrued taxes and fees 17,761 16,221 Accrued payroll and benefits 15,412 13,102 Accrued property, plant and equipment 10,132 6,775 Advance customer payments 8,689 13,817 Bank overdrafts (1) 8,067 3,020 Accrued service costs 5,624 6,171 Accrued administrative expenses 5,568 4,355 Accrued marketing expenses 3,694 3,528 Accrued interest 2,809 7,422 Accrued telecommunications costs 1,036 816 Other accrued expenses 1,716 4,257 Accounts payable, accrued expenses and other current liabilities $ 146,080 $ 147,739 (1) Bank overdrafts represented outstanding checks in excess of funds on deposit at our disbursement accounts. We transfer funds from our depository accounts to our disbursement accounts upon daily notification of checks presented for payment. Changes in bank overdrafts are reported in “other financing activities” in our Consolidated Statement of Cash Flows.

Debt

Debt	12 Months Ended
	Dec. 31, 2018
Debt Disclosure [Abstract]
Debt	6. DEBT As of December 31, 2018 and 2017, our outstanding debt consisted of (dollars in thousands): December 31, December 31, 2018 2017 Bank credit facility $ 1,024,375 $ 1,077,000 5 1 2 200,000 200,000 6 3 8 — 300,000 Total debt $ 1,224,375 $ 1,577,000 Less: current portion 20,500 20,500 Total long-term debt, gross (less current portion) $ 1,203,875 $ 1,556,500 Less: deferred financing costs, net 13,318 19,420 Total long-term debt, net (less current portion) $ 1,190,557 $ 1,537,080 Bank Credit Facility As of December 31, 2018, we maintained a $1.399 billion bank credit facility (the “credit facility”), comprising: • $375.0 million of revolving credit commitments, which expire on November 2, 2022; • $234.4 million of outstanding borrowings under Term Loan A-1, • $790.0 million of outstanding borrowings under Term Loan M, which mature on January 15, 2025. The credit facility is collateralized by our ownership interests in our operating subsidiaries and is guaranteed by us on a limited recourse basis to the extent of such ownership interests. As of December 31, 2018, the credit agreement governing the credit facility (the “credit agreement”) required our operating subsidiaries to maintain a total leverage ratio (as defined in the credit agreement) of no more than 5.0 to 1.0 and an interest coverage ratio (as defined in the credit agreement) of no less than 2.0 to 1.0. For all periods through December 31, 2018, our operating subsidiaries were in compliance with all covenants under the credit agreement. As of the same date, the credit agreement allowed for the full or partial repayment of any outstanding debt under the credit facility at par value any time prior to maturity. Revolving Credit Commitments On November 2, 2017, we terminated our existing revolving credit commitments and, on the same date, entered into a new credit agreement that, among other things, provided for $375.0 million of new revolving credit commitments (the “revolver”), which are scheduled to expire on November 2, 2022. Borrowings under the revolver bear interest at a floating rate or rates equal to, at our discretion, LIBOR plus a margin ranging from 1.75% to 2.75%, or the Prime Rate plus a margin ranging from 0.75% to 1.75%. Commitment fees on the unused portion of the revolver are payable at a rate ranging from 0.25% to 0.50%. The applicable margin and commitment fees charged are determined by certain financial ratios pursuant to the credit agreement. The revolver expires on the earliest of (i) November 2, 2022; (ii) 91 days prior to the final maturity of any term loan under the credit facility if $200.0 million or more remains under such term loan on that date; or (iii) six months prior to the scheduled maturity of any affiliated subordinated indebtedness that is then outstanding. As of December 31, 2018, we had $365.4 million of unused revolving credit commitments, all of which were available to be borrowed and used for general corporate purposes, after giving effect to no outstanding loans and $9.6 million of letters of credit issued to various parties as collateral. Term Loan A-1 On November 2, 2017, we entered into a new credit agreement that provided for a new term loan in the original principal amount of $250.0 million (“Term Loan A-1”). A-1 Borrowings under Term Loan A-1 Term Loan M On November 2, 2017, we entered into a new credit agreement that provided for a new term loan in the original principal amount of $800.0 million (“Term Loan M”). Term Loan M matures on January 15, 2025 and, since December 31, 2017, has been subject to quarterly principal payments of $2.0 million, representing 0.25% of the original principal amount, with a final payment at maturity of $742.0 million, representing 92.75% of the original principal amount. Borrowings under Term Loan M bear interest at a floating rate or rates equal to, at our discretion, LIBOR plus a margin of 2.00%, subject to a minimum LIBOR of 0.75%, or the Prime Rate plus a margin of 1.00%, subject to a minimum Prime Rate of 1.75%. Interest Rate Swaps We periodically enter into interest rate exchange agreements (which we refer to as “interest rate swaps”) with various banks to fix the variable rate on a portion of our borrowings under the credit facility to reduce the potential volatility in our interest expense that may result from changes in market interest rates. Our interest rate swaps have not been designated as hedges for accounting purposes and have been accounted for on a mark-to-market Senior Notes As of December 31, 2018, we had $200.0 million of outstanding senior notes, all of which comprised our 5 1 2 1 2 Our senior notes are unsecured obligations and, as of December 31, 2018, the indenture governing our senior notes (the “indenture”) limits the incurrence of additional indebtedness based upon a maximum debt to operating cash flow ratio (as defined in the indenture) of 8.5 to 1.0. For all periods through December 31, 2018, we were in compliance with all of the covenants under the indenture. 5 1 2 On March 17, 2014, we issued the 5 1 2 1 2 As a percentage of par value, the 5 1 2 6 3 8 On March 2, 2018, we called for the redemption of the $300.0 million principal amount outstanding of the 6 3 8 3 8 3 8 Debt Ratings MCC’s corporate credit ratings currently are Ba1 by Moody’s, with a stable outlook, and BB by Standard and Poor’s (“S&P”), with a positive outlook, and our senior unsecured ratings currently are Ba2 by Moody’s, with a stable outlook, and B+ by S&P, with a positive outlook. There are no covenants, events of default, borrowing conditions or other terms in the credit agreement or indenture that are based on changes in our credit rating assigned by any rating agency. Fair Value and Debt Maturities The fair values of our senior notes and outstanding debt under the credit facility (which were calculated based upon market prices of such issuances in an active market when available) were as follows as of December 31, 2018 and 2017 (dollars in thousands): December 31, 2018 2017 5 1 2 $ 200,500 $ 203,750 6 3 8 — 312,000 Total senior notes $ 200,500 $ 515,750 Bank credit facility $ 992,775 $ 1,078,995 The scheduled maturities of our outstanding debt as of December 31, 2018 was as follows (dollars in thousands): Bank Credit Facility Senior Revolving Credit Term Loans Notes Total January 1, 2019 to December 31, 2019 $ — $ 20,500 $ — $ 20,500 January 1, 2020 to December 31, 2020 — 20,500 — 20,500 January 1, 2021 to December 31, 2021 — 20,500 200,000 220,500 January 1, 2022 to December 31, 2022 — 204,875 — 204,875 January 1, 2023 to December 31, 2023 — 8,000 — 8,000 Thereafter — 750,000 — 750,000 Total $ — $ 1,024,375 $ 200,000 $ 1,224,375

Preferred Members' Interest

Preferred Members' Interest	12 Months Ended
	Dec. 31, 2018
Equity Method Investments and Joint Ventures [Abstract]
Preferred Members' Interest	7. PREFERRED MEMBERS’ INTEREST In July 2001, we received a $150.0 million preferred membership investment (“PMI”) from the operating subsidiaries of Mediacom LLC, which has a 12% annual dividend, payable quarterly in cash. We may voluntarily repay the PMI at any time at par, and the operating subsidiaries of Mediacom LLC have the option to call for the redemption of the PMI upon the repayment of all of our outstanding senior notes. We paid $18.0 million in cash dividends on the PMI during each of the years ended December 31, 2018, 2017, and 2016.

Member's Equity

Member's Equity	12 Months Ended
	Dec. 31, 2018
Equity [Abstract]
Member's Equity	8. MEMBER’S EQUITY As a wholly-owned subsidiary of MCC, our business affairs, including our financing decisions, are directed by MCC. See Note 9. Capital contributions from parent and capital distributions to parent are reported on a gross basis in the Consolidated Statements of Changes in Member’s Equity and the Consolidated Statements of Cash Flows. We received capital contributions from parent in cash of $208.0 million, $60.0 million and $75.0 for the years ended December 31, 2018, 2017, and 2016, respectively. We made capital distributions to parent in cash of $10.5 million, $121.1 million, and $7.0 during the years ended December 31, 2018, 2017 and 2016, respectively.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2018
Related Party Transactions [Abstract]
Related Party Transactions	9. RELATED PARTY TRANSACTIONS Management Agreements MCC manages us pursuant to management agreements with our operating subsidiaries. Under such agreements, MCC has full and exclusive authority to manage our day to day operations and conduct our business. We remain responsible for all expenses and liabilities relating to the construction, development, operation, maintenance, repair, and ownership of our systems. As compensation for the performance of its services, subject to certain restrictions, MCC is entitled under each management agreement to receive management fees in an amount not to exceed 4.0% of the annual gross operating revenues of our operating subsidiaries. MCC is also entitled to the reimbursement of all expenses necessarily incurred in its capacity as manager. MCC charged us management fees of $24.0 million, $21.7 million and $20.8 million during the years ended December 31, 2018, 2017 and 2016, respectively. Mediacom LLC is a preferred equity investor in us. See Note 7.

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2018
Retirement Benefits [Abstract]
Employee Benefit Plans	10. EMPLOYEE BENEFIT PLANS Substantially all our employees are eligible to participate in MCC’s defined contribution plan pursuant to the Internal Revenue Code Section 401(k) (“MCC’s Plan”). Under MCC’s Plan, eligible employees may contribute a portion of their current pretax compensation (as defined by MCC’s Plan). MCC’s Plan permits, but does not require, matching contributions and non-matching

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	11. COMMITMENTS AND CONTINGENCIES Leases Under various lease and rental agreements for offices, warehouses and computer terminals, we had rental expense of $4.0 million, $3.8 million and $4.1 million for the years ended December 31, 2018, 2017 and 2016, respectively. Future minimum annual rental payments as of December 31, 2018 were as follows (dollars in thousands): January 1, 2019 to December 31, 2019 $ 2,289 January 1, 2020 to December 31, 2020 1,831 January 1, 2021 to December 31, 2021 1,683 January 1, 2022 to December 31, 2022 1,454 January 1, 2023 to December 31, 2023 985 Thereafter 2,398 Total $ 10,640 Other Obligations We rent utility poles for our operations generally under short-term arrangements, but we expect these arrangements to recur. Total rental expense for utility poles was approximately $5.0 million, $4.8 million and $4.2 million for the years ended December 31, 2018, 2017 and 2016, respectively. Letters of Credit As of December 31, 2018, $9.6 million of letters of credit were issued to various parties to secure our performance relating to insurance and franchise requirements. The fair value of such letters of credit was approximately book value. Legal Proceedings We are involved in various legal actions arising in the ordinary course of business. In the opinion of management, the ultimate disposition of these matters will not have a material adverse effect on our consolidated financial position, results of operations, cash flows or business.

Revenue Recognition

Revenue Recognition	12 Months Ended
	Dec. 31, 2018
Text Block [Abstract]
Revenue Recognition	12. REVENUE RECOGNITION We adopted the new accounting guidance for revenue recognition (i.e. ASU 2014-09) We disaggregate revenue from contracts with customers by type of services. We have determined that disaggregating revenue into these categories depicts how the nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factors in our one reporting segment. Nature of Services Our primary revenue stream is subscription-based and consists of video service, high-speed data service and phone service. These services have base-level offerings and can be upgraded to premium level services. Residential customers can cancel their services at any time with no penalty. Small-to-medium We also generate revenue from installation services and customer premise equipment rental associated with our subscription-based services. After installation occurs, equipment is rented to the customer over the service period to allow the customer to use the various subscription services noted above. Fees for installation services are viewed as advance payments for future services and are recognized over the period of benefit which is estimated to be the life of the customer relationship (approximately three years for residential customers based upon our portfolio approach and 1-10 One of our other revenue streams is advertising sales. These revenues represent the insertion of commercials into various video and/or Internet platforms for an advertising customer. The performance obligation for these contracts is satisfied as the commercials are displayed. There are no agent relationships included in our delivery of our advertising services. Our obligation for returns and/or refunds is deemed insignificant. Revenue is recognized at a point in time as commercials are displayed by us and viewed by the public. Advertising is billed in arrears in the month that the commercials are displayed. A significant portion of our revenue streams are derived from customers who may cancel their subscriptions at any time without penalty. As such, the amount of revenue related to unsatisfied, remaining performance obligations is not necessarily indicative of the future revenue to be recognized from our existing customer base. Revenue from customers with a contract containing a specified contract term and non-cancelable 1-10 Franchise fees imposed by local governmental authorities are collected on a monthly basis from our customers and are periodically remitted to the local governmental authorities. Because franchise fees are our obligation, we present them on a gross basis within revenues with a corresponding operating expense. Franchise fees reported on a gross basis amounted to $20.2 million, $20.7 million, and $22.7 million for the years ended December 31, 2018, 2017, and 2016, respectively. Significant Judgments We often provide multiple services to a customer such as: subscription services, premium video and HSD upgrades, installation services and equipment rental. These services are highly integrated within our video, HSD and phone service offerings. Judgment is required to determine whether the delivery of customer premise equipment, installation services, and additional premium services are considered distinct and should be accounted for separately from subscription services. Alternatively, the determination that these offerings are not distinct would cause these offerings to be accounted for on a combined basis within our subscription services. Allocation of the transaction price to the distinct performance obligations in bundled service subscriptions requires judgment. The transaction price for bundled residential services is often discounted. This results in a combined, bundled price that is less than the sum of each of the individual standalone selling prices for each service. We allocate discounts for bundled residential services among each of the services to which the discount relates based on the relative standalone selling prices of those services. Standalone selling prices for our residential services are directly observable. We believe that non-refundable 1-10 Our revenues by type of service are as follows (dollars in thousands): Year Ended Type of service December 31, 2018 Video $ 422,485 Data 406,922 Phone 61,647 Business 165,665 Advertising 43,957 Total revenues $ 1,100,676 Virtually all of our revenue streams, including subscription services and equipment rental, are recognized over time. We recognize revenue at a point in time for services such as pay-per-view, Contract Balances We perform our obligations under contracts with customers by transferring services in exchange for receiving consideration from our customers. The timing of our performance often differs from the timing of the customer’s payment, which results in the recognition of a contract asset or a contract liability. We recognize a contract asset when we have the right to consideration for services transferred to a customer. Contract assets are classified as accounts receivable in our Consolidated Balance Sheets, where our right to consideration is unconditional. We recognize a contract liability for amounts paid by the customer, where we have a right to receive consideration before the transfer of services to the customer. Customers are generally billed in advance for most services we provide, resulting in a contract liability until such services are transferred to the customer. Contract liabilities are recorded as deferred revenue (current and non-current) The amount of revenue recognized during the year ended December 31, 2018 that was included in the opening contract liability balance was $22.3 million. The difference in the opening and closing balances of our receivables and contract liability primarily result from the timing difference between our performance and the customer’s payment. There was no impairment of receivables during the year ended December 31, 2018. Contract Costs We capitalize amounts paid to obtain and fulfill a contract with a customer (e.g. sales commissions and installation activities on new contracts). We incur sales commissions in our effort to obtain customer contracts. These commissions are paid as an incentive to our employees, who are performing in a sales function, which is directly related to the contract obtained. We expense commissions for our advertising customers as incurred, as we have elected the practical expedient for items with a period of benefit of less than one year. Additionally, we incur costs to fulfill a contract through installation activities performed by its technicians. These costs include allocations of the amounts incurred for all activities associated with the installation services which are performed at a customer’s premises, such as technician’s wages and benefits, fuel costs, and vehicle maintenance. As of December 31, 2018, the balance recognized from the costs incurred to obtain or fulfill a contract with a customer was $14.7 million of which approximately $7.2 million was short-term (recorded in prepaid and other current assets) and $7.5 million was long-term (recorded in other assets, net). We amortize the costs to obtain or fulfill a contract with a customer on a systematic basis, consistent with the pattern of transfer to which the services relate. For residential customers, there is no stated contract term but, in practice, is treated as a day-to-day Supplemental Disclosures of Cash Flow Information Our customers are typically billed in advance for the services we provide on a monthly basis. Historically, we have recorded such amounts in both accounts receivable and deferred revenue at the time of billing. With our adoption of the new revenue recognition guidance as of January 1, 2018, we record billed amounts when we have established an unconditional right to receive payment from our customers for services to be delivered or delivered to date under the customer’s contract. Since we adopted this new guidance using the modified retrospective method, and for more information about accounts receivable, deferred revenue and other affected accounts, please refer to the non-cash

Sale of Assets

Sale of Assets	12 Months Ended
	Dec. 31, 2018
Discontinued Operations and Disposal Groups [Abstract]
Sale of Assets	13. SALE OF ASSETS Tower Asset Sale On November 15, 2017, MCC entered into an asset purchase agreement (the “APA”) to sell substantially all of its operating subsidiaries’ tower assets (the “tower assets”) to CTI Towers (“CTI”), subject to closing conditions and requirements per the APA. Such tower assets were non-strategic On December 21, 2017, March 15, 2018 and September 25, 2018, we contributed certain tower assets to MCC which, in turn, sold such tower assets to CTI, pursuant to the terms and conditions of the APA. The contributed tower assets had a net book value of approximately $0.1 million at the time of transfer. In conjunction, with the sale, we reduced our asset retirement obligation (liability) by approximately $1.4 million. MCC received equity in CTI, representing a minority position, in exchange for the tower assets. These transactions substantially completed the tower asset sale pursuant to the terms and conditions of the APA.

Hurricane Michael

Hurricane Michael	12 Months Ended
	Dec. 31, 2018
Unusual or Infrequent Items, or Both [Abstract]
Hurricane Michael	14. HURRICANE MICHAEL On October 10, 2018, Hurricane Michael made landfall in the Panhandle region of Florida. Hurricane Michael caused property damage to our cable plant, as well as to our customers’ homes and businesses, in Georgia. As of December 31, 2018, the damage caused by Hurricane Michael required an additional $7.9 million of capital expenditures in order to repair our network and services.

Deferred Compensation

Deferred Compensation	12 Months Ended
	Dec. 31, 2018
Other Liabilities Disclosure [Abstract]
Deferred Compensation	15. DEFERRED COMPENSATION In November 2018, MCC launched the Mediacom Equity Bonus Plan (“MEBP”) designed as a deferred compensation plan for certain select employees. The MEBP has certain eligibility and vesting requirements which, along with the Company’s performance, determine the cash bonus payable under a qualified sale of the Company or other exit transaction. Participants may also receive payment prior to such qualifying event in cases of termination without cause, retirement, or disability all of which are subject to early withdrawal penalties. The plan also provides participants the ability to voluntarily receive a one-time

Valuation and Qualifying Accoun

Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
Valuation and Qualifying Accounts	Schedule II MEDIACOM BROADBAND LLC AND SUBSIDIARIES VALUATION AND QUALIFYING ACCOUNTS Balance at beginning of period Additions - Charged to costs and expenses Additions - Charged to other accounts Deductions Balance at end of period December 31, 2016 Allowance for doubtful accounts: Current receivables $ 3,627 $ 5,896 $ — $ 5,666 $ 3,857 December 31, 2017 Allowance for doubtful accounts: Current receivables $ 3,857 $ 3,557 $ — $ 4,050 $ 3,364 December 31, 2018 Allowance for doubtful accounts: Current receivables $ 3,364 $ 3,799 $ — $ 3,610 $ 3,553

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Basis of Preparation of Consolidated Financial Statements	Basis of Preparation of Consolidated Financial Statements The consolidated financial statements include the accounts of us and our subsidiaries. All intercompany transactions and balances have been eliminated. Comprehensive income is equal to net income for all periods presented. The preparation of the consolidated financial statements in conformity with generally accepted accounting principles in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The accounting estimates that require management’s most difficult and subjective judgments include: assessment and valuation of intangibles, accounts receivable allowance, useful lives of property, plant and equipment and capitalized labor. Actual results could differ from those and other estimates.
Reclassifications	Reclassifications Certain reclassifications have been made to prior year amounts to conform to the current year presentation.
Revenue Recognition	Revenue Recognition Video, high speed data (“HSD”), phone and business services revenues are recognized when the services are provided to our customers. We generally bill customers in advance for the services and equipment they have chosen to use and record such amounts as deferred revenue until the services are provided and the equipment is used. Deposits and up-front non-refundable up-front
Allowance for Doubtful Accounts	Allowance for Doubtful Accounts The allowance for doubtful accounts represents our best estimate of probable losses in the accounts receivable balance. The allowance is based on the number of days outstanding, customer balances, recoveries, historical experience and other currently available information.
Concentration of Credit Risk	Concentration of Credit Risk Our accounts receivable are comprised of amounts due from customers in varying regions throughout the United States. Concentration of credit risk with respect to these receivables is limited due to the large number of customers comprising our customer base and their geographic dispersion. We invest our cash with high quality financial institutions.
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment are recorded at cost. Additions to property, plant and equipment generally include material, labor and indirect costs. Depreciation is calculated on a straight-line basis over the following useful lives: Buildings 10 - 40 years Leasehold improvements Lesser of: life of respective lease or life of asset Cable systems, equipment and customer devices 3-20 Vehicles 4-5 Furniture, fixtures, and office equipment 5 years We capitalize improvements that extend asset lives and expense repairs and maintenance as incurred. At the time of retirements, write-offs, sales or other dispositions of property, the original cost and related accumulated depreciation are removed from the respective accounts and any resulting gains or losses are included in depreciation and amortization expense in the consolidated statement of operations. We capitalize the costs associated with the construction of cable transmission and distribution facilities, new customer installations and indirect costs associated with our phone service. Costs include direct labor and material, as well as certain indirect costs including capitalized interest. We perform periodic evaluations of the estimates used to determine the amount and extent that such costs are capitalized. Any changes to these estimates, which may be significant, are applied in the period in which the evaluations were completed. The costs of disconnecting service at a customer’s dwelling or reconnecting to a previously installed dwelling are charged as expense in the period incurred. Costs associated with subsequent installations of additional services not previously installed at a customer’s dwelling are capitalized to the extent such costs are incremental and directly attributable to the installation of such additional services. See Note 3.
Capitalized Software Costs	Capitalized Software Costs We account for internal-use 350-40- Intangibles-Goodwill and Other: Internal-Use
Marketing and Promotional Costs	Marketing and Promotional Costs Marketing and promotional costs are expensed as incurred and were $39.4 million, $38.6 million and $35.7 million for the years ended December 31, 2018, 2017 and 2016, respectively.
Intangible Assets	Intangible Assets Our cable systems operate under non-exclusive Intangibles — Goodwill and Other We follow the provisions of ASC 350 to test our goodwill and franchise rights for impairment. We assess the fair values of our reporting unit using the Excess Earnings Method of the Income Approach as our discounted cash flow (“DCF”) methodology, under which the fair value of cable franchise rights are determined in a direct manner. We employ the Multi-Period Excess Earnings Method to calculate the fair values of our cable franchise rights, using unobservable inputs (Level 3). This assessment involves significant judgment, including certain assumptions and estimates that determine future cash flow expectations and other future benefits, which are consistent with the expectations of buyers and sellers of cable systems in determining fair value. These assumptions and estimates include discount rates, estimated growth rates, terminal growth rates, comparable company data, revenues per customer, market penetration as a percentage of homes passed and operating margin. We also consider market transactions, market valuations, research analyst estimates and other valuations using multiples of operating income before depreciation and amortization to confirm the reasonableness of fair values determined by the DCF methodology. We also employ the Greenfield model to corroborate the fair values of our cable franchise rights determined under the In-use Based on the guidance outlined in ASC 350, we have determined that the unit of accounting or reporting unit, for testing goodwill and franchise rights is Mediacom Broadband. Comprising cable system clusters across several states, Mediacom Broadband is at the financial reporting level that is managed and reviewed by the corporate office (i.e., chief operating decision maker) including our determination as to how we allocate capital resources and utilize the assets. The reporting unit level also reflects the level at which the purchase method of accounting for our acquisitions was originally recorded. In accordance with ASC 350, we are required to determine goodwill impairment using a two-step The impairment test for our franchise rights and other intangible assets not subject to amortization consists of a comparison of the fair value of the intangible asset with its carrying value. If the carrying value of the intangible asset exceeds its fair value, the excess is recognized as an impairment loss. Since our adoption of ASC 350 in 2002, we have not recorded any impairments as a result of our impairment testing. We monitor the reporting unit for impairment throughout each of the reporting periods. We completed our most recent impairment test as of October 1, 2018, which reflected no impairment of our franchise rights, goodwill or other intangible assets. For the years ended December 31, 2018 and 2017, respectively, no impairments were recorded. We could record impairments in the future if there are changes in the long-term fundamentals of our business, in general market conditions or in the regulatory landscape that could prevent us from recovering the carrying value of our long-lived intangible assets. The economic conditions affecting the U.S. economy, and how that may impact the fundamentals of our business, may have a negative impact on the fair values of the assets in our reporting unit. We have evaluated whether there are any adverse qualitative factors surrounding our Mediacom Broadband reporting unit indicating that a goodwill impairment may exist as of December 31, 2018. We do not believe that it is “more likely than not” that a goodwill impairment exists. As such, we have not performed Step 2 of the goodwill impairment test. The following table details changes in the carrying value of goodwill for the years ended December 31, 2018 and 2017 (dollars in thousands): Balance - December 31, 2016 $ 195,945 Acquisitions — Dispositions — Balance - December 31, 2017 $ 195,945 Acquisitions — Dispositions (90 ) Balance - December 31, 2018 $ 195,855
Segment Reporting	Segment Reporting ASC 280 — Segment Reporting
Accounting for Derivative Instruments	Accounting for Derivative Instruments We account for derivative instruments in accordance with ASC 815 — Derivatives and Hedging one-to-one
Accounting for Asset Retirement Obligations	Accounting for Asset Retirement Obligations We adopted ASC 410 — Asset Retirement Obligations rights-of-way Upon adoption of ASC 410, we determined that in certain instances, we are obligated by contractual terms or regulatory requirements to remove facilities or perform other remediation activities upon the retirement of our assets. We initially recorded a $1.8 million asset in property, plant and equipment and a corresponding liability of $1.8 million. As of both December 31, 2018 and 2017, the corresponding asset, net of accumulated amortization, was $0. See Note 3.
Accounting for Long-Lived Assets	Accounting for Long-Lived Assets In accordance with ASC 360 — Property, Plant and Equipment
Programming Costs	Programming Costs We have various fixed-term carriage contracts to obtain programming for our cable systems from content suppliers whose compensation is generally based on a fixed monthly fee per video customer. These programming contracts are subject to negotiated renewal. Programming costs are recognized when we distribute the related programming and are usually payable each month based on calculations performed by us and are subject to adjustments based on the results of periodic audits by the content suppliers. Historically, such audit adjustments have been immaterial to our total programming costs. Financial incentives, when received, are deferred within non-current
Recent Accounting Pronouncements	Recent Accounting Pronouncements Accounting Pronouncements Adopted January 1, 2018 In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09 2014-09”) Revenue from Contracts with Customers 2014-09 non-current 2014-09. In January 2016, the FASB issued ASU 2016-01 Recognition and Measurement of Financial Assets and Financial Liabilities (“ASU 2016-01”). 2016-01 available-for-sale) 2016-01. re-measured 2016-01 2016-01 In August 2016, the FASB issued ASU 2016-15 Statement of Cash Flows – Clarification of Certain Cash Receipts and Cash Payments 2016-15”). Statement of Cash Flows 2016-15 2016-15 2016-15 Accounting Pronouncements with Future Adoption Dates In February 2016, the FASB issued Accounting Standards Update No. 2016-02, Leases 2016-02”), on-balance ASU 2016-02 is unrecorded off-balance sheet right-of-use We expect to adopt the new standard on its effective date, January 1, 2019. A modified retrospective transition approach is required for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, with certain practical expedients available. While we are completing our assessment of the effect of adoption, we currently believe the most significant changes relate to: the recognition of new ROU assets and lease liabilities on our balance sheet for office equipment, real estate, and other assets as determined; and to a much lesser extent, (i) the de-recognition build-to-suit de-recognition build-to-suit • Recognize additional operating liabilities with corresponding ROU assets of the same amount based on the present value of the remaining minimum rental payments under current leasing standards for existing operating leases. • To a lesser extent, de-recognize • Also, to a lesser extent, de-recognize build-to-suit We continue to finalize our assessment of all of the potential impacts that the adoption of ASU 2016-02 will We have not finalized the impact that the adoption will have on our financial statements in the first quarter of 2019. We expect that the balance sheet impact of the adoption will be material to our financial position. We do not expect that the income statement impact of the adoption will be material to our statement of operations. We expect to avail ourselves of all of the practical expedients afforded under ASU 2016-02 non-lease In June 2016, the FASB issued Accounting Standards Update 2016-13 Financial Instruments — Credit Losses (Topic 326) 2016-13”). 2016-13 2016-13 2016-13 2016-13 2016-13 2016-13 In January 2017, the FASB issued ASU 2017-04 Intangibles – Goodwill and Other 2017-04”). 2017-04 2017-04 In January 2018, the FASB issued ASU 2018-01 Leases — Land Easement Practical Expedient for Transition to Topic 842 2018-01”). 2018-01 Leases 2018-01 2016-02, 2016-02. 2018-01 2016-02, 2018-01. In July 2018, the FASB issued ASU 2018-11- Leases (Topic 842) – Targeted Improvements 2018-11”). 2018-11 2016-02 2018-11 2018-11 2018-11 2018-11 2018-11 In August 2018, the FASB issued ASU 2018-15 — Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract 2018-15”). 2018-15 internal-use internal-use 2018-15. 2018-15. 2018-15 2018-15

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Summary of Estimated Useful Lives	Depreciation is calculated on a straight-line basis over the following useful lives: Buildings 10 - 40 years Leasehold improvements Lesser of: life of respective lease or life of asset Cable systems, equipment and customer devices 3-20 Vehicles 4-5 Furniture, fixtures, and office equipment 5 years
Summary of Changes in Carrying Value of Goodwill	The following table details changes in the carrying value of goodwill for the years ended December 31, 2018 and 2017 (dollars in thousands): Balance - December 31, 2016 $ 195,945 Acquisitions — Dispositions — Balance - December 31, 2017 $ 195,945 Acquisitions — Dispositions (90 ) Balance - December 31, 2018 $ 195,855

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2018
Property, Plant and Equipment [Abstract]
Components of Property, Plant and Equipment	As of December 31, 2018 and 2017, property, plant and equipment consisted of (dollars in thousands): December 31, December 31, 2018 2017 Cable systems, equipment and customer devices $ 2,467,534 $ 2,362,459 Vehicles 49,784 46,696 Buildings and leasehold improvements 38,366 37,810 Furniture, fixtures and office equipment 17,919 34,207 Land and land improvements 7,785 7,785 Property, plant and equipment, gross $ 2,581,388 $ 2,488,957 Accumulated depreciation (1,730,750 ) (1,663,609 ) Property, plant and equipment, net $ 850,638 $ 825,348

Fair Value (Tables)

Fair Value (Tables)	12 Months Ended
	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value of Interest Rate Swap Assets and Liabilities	Fair Value as of December 31, 2018 Level 1 Level 2 Level 3 Total Assets Interest rate exchange agreements $ — $ — $ — $ — Liabilities Interest rate exchange agreements $ — $ — $ — $ — Fair Value as of December 31, 2017 Level 1 Level 2 Level 3 Total Assets Interest rate exchange agreements $ — $ 2,154 $ — $ 2,154 Liabilities Interest rate exchange agreements $ — $ — $ — $ —

Accounts Payable, Accrued Exp_2

Accounts Payable, Accrued Expenses and Other Current Liabilities (Tables)	12 Months Ended
	Dec. 31, 2018
Payables and Accruals [Abstract]
Summary of Accounts Payable, Accrued Expenses and Other Current Liabilities	Accounts payable, accrued expenses and other current liabilities consisted of the following as of December 31, 2018 and 2017 (dollars in thousands): December 31, December 31, 2018 2017 Accrued programming costs $ 33,335 $ 28,840 Accounts payable - trade 32,237 39,415 Accrued taxes and fees 17,761 16,221 Accrued payroll and benefits 15,412 13,102 Accrued property, plant and equipment 10,132 6,775 Advance customer payments 8,689 13,817 Bank overdrafts (1) 8,067 3,020 Accrued service costs 5,624 6,171 Accrued administrative expenses 5,568 4,355 Accrued marketing expenses 3,694 3,528 Accrued interest 2,809 7,422 Accrued telecommunications costs 1,036 816 Other accrued expenses 1,716 4,257 Accounts payable, accrued expenses and other current liabilities $ 146,080 $ 147,739 (1) Bank overdrafts represented outstanding checks in excess of funds on deposit at our disbursement accounts.

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2018
Debt Disclosure [Abstract]
Summary of Outstanding Debt	As of December 31, 2018 and 2017, our outstanding debt consisted of (dollars in thousands): December 31, December 31, 2018 2017 Bank credit facility $ 1,024,375 $ 1,077,000 5 1 2 200,000 200,000 6 3 8 — 300,000 Total debt $ 1,224,375 $ 1,577,000 Less: current portion 20,500 20,500 Total long-term debt, gross (less current portion) $ 1,203,875 $ 1,556,500 Less: deferred financing costs, net 13,318 19,420 Total long-term debt, net (less current portion) $ 1,190,557 $ 1,537,080
Fair Values of Senior Notes and Outstanding Debt under Credit Facility	December 31, 2018 2017 5 1 2 $ 200,500 $ 203,750 6 3 8 — 312,000 Total senior notes $ 200,500 $ 515,750 Bank credit facility $ 992,775 $ 1,078,995
Scheduled Maturities of Our Outstanding Debt	The scheduled maturities of our outstanding debt as of December 31, 2018 was as follows (dollars in thousands): Bank Credit Facility Senior Revolving Credit Term Loans Notes Total January 1, 2019 to December 31, 2019 $ — $ 20,500 $ — $ 20,500 January 1, 2020 to December 31, 2020 — 20,500 — 20,500 January 1, 2021 to December 31, 2021 — 20,500 200,000 220,500 January 1, 2022 to December 31, 2022 — 204,875 — 204,875 January 1, 2023 to December 31, 2023 — 8,000 — 8,000 Thereafter — 750,000 — 750,000 Total $ — $ 1,024,375 $ 200,000 $ 1,224,375

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Summary of Future Minimum Annual Rental Payments	Future minimum annual rental payments as of December 31, 2018 were as follows (dollars in thousands): January 1, 2019 to December 31, 2019 $ 2,289 January 1, 2020 to December 31, 2020 1,831 January 1, 2021 to December 31, 2021 1,683 January 1, 2022 to December 31, 2022 1,454 January 1, 2023 to December 31, 2023 985 Thereafter 2,398 Total $ 10,640

Revenue Recognition (Tables)

Revenue Recognition (Tables)	12 Months Ended
	Dec. 31, 2018
Text Block [Abstract]
Summary of Disaggregation of Revenue Qualitative Reconciliation	Our revenues by type of service are as follows (dollars in thousands): Year Ended Type of service December 31, 2018 Video $ 422,485 Data 406,922 Phone 61,647 Business 165,665 Advertising 43,957 Total revenues $ 1,100,676

Organization - Additional Infor

Organization - Additional Information (Detail)	Dec. 31, 2018USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Amount due from affiliate by subsidiary	$ 100

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Additional Information (Detail)	Oct. 01, 2018USD ($)	Dec. 31, 2018USD ($)SegmentFranchise	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)
Finite-Lived Intangible Assets [Line Items]
Percentage of gross revenue required to pay franchise fees		5.00%
Software development costs wrote off		$ 4,800,000	$ 3,300,000
Software development costs amortized		100,000	200,000	$ 2,800,000
Marketing and promotional costs expensed		$ 39,400,000	38,600,000	$ 35,700,000
Number of franchises | Franchise		478
Impairment loss of goodwill	$ 0	$ 0	0
Impairment loss of other intangible assets	0	$ 0	0
Number of reportable segment | Segment		1
Asset in property, plant and equipment		$ 2,331,732,000	2,316,683,000
Liability in property, plant and equipment		1,407,823,000	1,768,855,000
Property, Plant and Equipment, Other Types [Member]
Finite-Lived Intangible Assets [Line Items]
Asset in property, plant and equipment		1,800,000
Liability in property, plant and equipment		1,800,000
Accumulated depreciation		$ 0	0
Software Development [Member]
Finite-Lived Intangible Assets [Line Items]
Other finite-lived intangible assets useful lives		5 years
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Net book value of capitalized software		$ 100,000	100,000
Franchise Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment loss of franchise rights	$ 0	$ 0	$ 0

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Summary of Estimated Useful Lives (Detail)	12 Months Ended
	Dec. 31, 2018
Buildings [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	10 years
Buildings [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	40 years
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Leasehold improvements	Lesser of life of respective lease or life of asset
Cable Systems, Equipment and Customer Devices [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	3 years
Cable Systems, Equipment and Customer Devices [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	20 years
Vehicles [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	4 years
Vehicles [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Furniture, Fixtures and Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Summary of Changes in Carrying Value of Goodwill (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Goodwill Roll Forward
Beginning Balance	$ 195,945	$ 195,945
Acquisitions	0	0
Dispositions	(90)
Ending Balance	$ 195,855	$ 195,945

Recent Accounting Pronouncement

Recent Accounting Pronouncements - Additional Information (Detail) - USD ($) $ in Thousands	Jan. 01, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Decrease to accounts receivable		$ 40,252	$ 71,994
Increase to prepaid expenses and other current assets		24,347	22,881
Increase in other assets		14,312	11,001
Decrease to deferred revenue - current		22,345	41,382
Increase to deferred revenue - non-current		8,237
Decrease to total shareholders' equity		$ 773,909	$ 397,828	$ 317,492	$ 95,461
Accounting Standards Update 2014-09 [Member] | Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Finite-Lived Intangible Assets [Line Items]
Decrease to accounts receivable	$ 32,800
Increase to prepaid expenses and other current assets	7,200
Increase in other assets	7,300
Decrease of accounts payable, accrued expenses and other current liabilities	6,500
Decrease to deferred revenue - current	18,500
Increase to deferred revenue - non-current	8,000
Decrease to total shareholders' equity	$ 1,300

Property, Plant and Equipment -

Property, Plant and Equipment - Components of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 2,581,388	$ 2,488,957
Accumulated depreciation	(1,730,750)	(1,663,609)
Property, plant and equipment, net	850,638	825,348
Cable Systems, Equipment and Customer Devices [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,467,534	2,362,459
Vehicles [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	49,784	46,696
Buildings and Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	38,366	37,810
Furniture, Fixtures and Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	17,919	34,207
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 7,785	$ 7,785

Property, Plant and Equipment_2

Property, Plant and Equipment - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 152,500,000	$ 172,200,000	$ 147,000,000
Property under capitalized leases	0	0
Interest costs	59,500,000	72,300,000	80,900,000
Interest costs capitalized	$ 800,000	$ 1,200,000	$ 1,300,000

Fair Value - Fair Value of Inte

Fair Value - Fair Value of Interest Rate Swap Assets and Liabilities (Detail) - Interest Rate Swap [Member] - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets		$ 2,154
Liabilities	$ 0	0
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0	0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets		2,154
Liabilities	0	0
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	$ 0	$ 0

Fair Value - Additional Informa

Fair Value - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Current liability		$ 0
Long-term liability		0
Long term assets		0
Current assets		2,200,000
Net gain (loss) on derivatives	$ (2,200,000)	$ 2,800,000	$ 1,200,000

Accounts Payable, Accrued Exp_3

Accounts Payable, Accrued Expenses and Other Current Liabilities - Summary of Accounts Payable, Accrued Expenses and Other Current Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Payables and Accruals [Abstract]
Accrued programming costs	$ 33,335	$ 28,840
Accounts payable - trade	32,237	39,415
Accrued taxes and fees	17,761	16,221
Accrued payroll and benefits	15,412	13,102
Accrued property, plant and equipment	10,132	6,775
Advance customer payments	8,689	13,817
Bank overdrafts	8,067	3,020
Accrued service costs	5,624	6,171
Accrued administrative expenses	5,568	4,355
Accrued marketing expenses	3,694	3,528
Accrued interest	2,809	7,422
Accrued telecommunications costs	1,036	816
Other accrued expenses	1,716	4,257
Accounts payable, accrued expenses and other current liabilities	$ 146,080	$ 147,739

Debt - Summary of Outstanding D

Debt - Summary of Outstanding Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total debt	$ 1,224,375	$ 1,577,000
Less: current portion	20,500	20,500
Total long-term debt, gross (less current portion)	1,203,875	1,556,500
Total long-term debt, gross (less current portion)	1,203,875	1,556,500
Less: deferred financing costs, net	13,318	19,420
Total long-term debt, net (less current portion)	1,190,557	1,537,080
Bank Credit Facility [Member]
Debt Instrument [Line Items]
Total debt	1,024,375	1,077,000
5 1/2% Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Total debt	$ 200,000	200,000
6 3/8% Senior Notes Due 2023 [Member]
Debt Instrument [Line Items]
Total debt		$ 300,000

Debt - Summary of Outstanding_2

Debt - Summary of Outstanding Debt (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2018
5 1/2% Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Debt instrument, Interest rate	5.50%
Debt instrument, Maturity	2,021
6 3/8% Senior Notes Due 2023 [Member]
Debt Instrument [Line Items]
Debt instrument, Interest rate	6.375%
Debt instrument, Maturity	2,023

Debt - Additional Information (

Debt - Additional Information (Detail) - USD ($)	Apr. 02, 2018	Nov. 02, 2017	Nov. 02, 2017	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Mar. 30, 2018	Mar. 02, 2018	Mar. 17, 2014
Debt Instrument [Line Items]
Revolving credit commitment outstanding					$ 0
Outstanding senior notes				$ 200,000,000
Capital contributions from parent					208,000,000	$ 60,000,000	$ 75,000,000
Loss on early extinguishment of debt					(12,216,000)	$ (2,623,000)	$ (1,156,000)
Unamortized financing costs					$ 9,565,000
Maximum [Member]
Debt Instrument [Line Items]
Required debt to operating cash flow					8.50%
Minimum [Member]
Debt Instrument [Line Items]
Required debt to operating cash flow					1.00%
Loans Payable [Member]
Debt Instrument [Line Items]
Revolving credit commitment outstanding					$ 0
5 1/2% Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Original principal amount										$ 200,000,000
Senior notes expiration date				2021-04
Redemption percentage of senior notes, description					As a percentage of par value, the 51/2% Notes are currently redeemable at 101.375% and at par value commencing April 15, 2019.
Debt, redemption price percentage					101.375%
Redemption of senior notes commencing date					Apr. 15, 2019
6 3/8% Senior Notes Due 2023 [Member]
Debt Instrument [Line Items]
Debt, redemption price percentage	1.30319%
Debt instrument, repurchased principal amount									$ 300,000,000
Debt, aggregate redemption price	$ 309,600,000
Capital contributions from parent	$ 158,000,000
Loss on early extinguishment of debt					$ (12,200,000)
Redemption price paid above par value					9,600,000
Unamortized financing costs					$ 2,600,000
Revolving Credit Commitments at Present [Member]
Debt Instrument [Line Items]
Line of credit facility, certain financial terms					The revolver expires on the earliest of (i) November 2, 2022; (ii) 91 days prior to the final maturity of any term loan under the credit facility if $200.0 million or more remains under such term loan on that date; or (iii) six months prior to the scheduled maturity of any affiliated subordinated indebtedness that is then outstanding.
Revolving Credit Commitments at Present [Member] | Maximum [Member]
Debt Instrument [Line Items]
Rate of commitment fees on the unused portion of revolving credit commitments			0.50%
Revolving Credit Commitments at Present [Member] | Maximum [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Floating rate margin			2.75%
Revolving Credit Commitments at Present [Member] | Maximum [Member] | Prime Rate [Member]
Debt Instrument [Line Items]
Floating rate margin			1.75%
Revolving Credit Commitments at Present [Member] | Minimum [Member]
Debt Instrument [Line Items]
Rate of commitment fees on the unused portion of revolving credit commitments			0.25%
Revolving Credit Commitments at Present [Member] | Minimum [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Floating rate margin			1.75%
Revolving Credit Commitments at Present [Member] | Minimum [Member] | Prime Rate [Member]
Debt Instrument [Line Items]
Floating rate margin			0.75%
Revolving Credit Commitments at Present [Member] | 6 3/8% Senior Notes Due 2023 [Member]
Debt Instrument [Line Items]
Revolving credit commitment outstanding								$ 151,600,000
Term Loan A-1 [Member]
Debt Instrument [Line Items]
Original principal amount		$ 250,000,000	$ 250,000,000
Quarterly principal payments of original principal amount		$ 3,100,000
Rate of quarterly principal payments of original principal amount		1.25%
Final payment at maturity representing the original principal amount		$ 187,500,000	187,500,000
Rate of Final payment at maturity representing the original principal amount		75.00%
Term Loan A-1 [Member] | Maximum [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Floating rate margin		2.75%
Term Loan A-1 [Member] | Maximum [Member] | Prime Rate [Member]
Debt Instrument [Line Items]
Floating rate margin		1.75%
Term Loan A-1 [Member] | Minimum [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Floating rate margin		1.75%
Term Loan A-1 [Member] | Minimum [Member] | Prime Rate [Member]
Debt Instrument [Line Items]
Floating rate margin		0.75%
Term Loan M [Member]
Debt Instrument [Line Items]
Original principal amount		$ 800,000,000	800,000,000
Quarterly principal payments of original principal amount		$ 2,000,000
Rate of quarterly principal payments of original principal amount		0.25%
Final payment at maturity representing the original principal amount		$ 742,000,000	742,000,000
Rate of Final payment at maturity representing the original principal amount		92.75%
Term Loan M [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Floating rate margin		2.00%
Term Loan M [Member] | Prime Rate [Member]
Debt Instrument [Line Items]
Floating rate margin		1.00%
Term Loan M [Member] | Minimum [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Floating rate margin		0.75%
Term Loan M [Member] | Minimum [Member] | Prime Rate [Member]
Debt Instrument [Line Items]
Floating rate margin		1.75%
Bank Credit Facility [Member]
Debt Instrument [Line Items]
Unused revolving credit commitments					$ 365,400,000
Letter of Credit [Member]
Debt Instrument [Line Items]
Revolving credit commitment outstanding					9,600,000
Bank Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit commitment outstanding					$ 1,399,000,000
Bank Credit Facility [Member] | Maximum [Member]
Debt Instrument [Line Items]
Leverage ratio					500.00%
Bank Credit Facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Interest coverage ratio					200.00%
Bank Credit Facility [Member] | Revolving Credit Commitments at Present [Member]
Debt Instrument [Line Items]
Revolving credit commitments		$ 375,000,000	$ 375,000,000		$ 375,000,000
Expiration date of revolving credit commitments					Nov. 2, 2022
Bank Credit Facility [Member] | Term Loan A-1 [Member]
Debt Instrument [Line Items]
Revolving credit commitment outstanding					$ 234,400,000
Expiration date of revolving credit commitments					Nov. 2, 2022
Bank Credit Facility [Member] | Term Loan M [Member]
Debt Instrument [Line Items]
Revolving credit commitment outstanding					$ 790,000,000
Expiration date of revolving credit commitments					Jan. 15, 2025

Debt - Fair Values of Senior No

Debt - Fair Values of Senior Notes and Outstanding Debt under Credit Facility (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total senior notes	$ 200,500	$ 515,750
5 1/2% Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Total senior notes	200,500	203,750
6 3/8% Senior Notes Due 2023 [Member]
Debt Instrument [Line Items]
Total senior notes		312,000
Bank Credit Facility [Member]
Debt Instrument [Line Items]
Total senior notes	$ 992,775	$ 1,078,995

Debt - Fair Values of Senior _2

Debt - Fair Values of Senior Notes and Outstanding Debt under Credit Facility (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2018
5 1/2% Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Debt instrument, Interest rate	5.50%
Debt instrument, Maturity	2,021
6 3/8% Senior Notes Due 2023 [Member]
Debt Instrument [Line Items]
Debt instrument, Interest rate	6.375%
Debt instrument, Maturity	2,023

Debt - Scheduled Maturities of

Debt - Scheduled Maturities of Our Outstanding Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
January 1, 2019 to December 31, 2019	$ 20,500
January 1, 2020 to December 31, 2020	20,500
January 1, 2021 to December 31, 2021	220,500
January 1, 2022 to December 31, 2022	204,875
January 1, 2023 to December 31, 2023	8,000
Thereafter	750,000
Total	1,224,375	$ 1,577,000
Senior Notes [Member]
Debt Instrument [Line Items]
January 1, 2021 to December 31, 2021	200,000
Total	200,000
Bank Credit Facility [Member]
Debt Instrument [Line Items]
Total	1,024,375	$ 1,077,000
Bank Credit Facility [Member] | Term Loans [Member]
Debt Instrument [Line Items]
January 1, 2019 to December 31, 2019	20,500
January 1, 2020 to December 31, 2020	20,500
January 1, 2021 to December 31, 2021	20,500
January 1, 2022 to December 31, 2022	204,875
January 1, 2023 to December 31, 2023	8,000
Thereafter	750,000
Total	$ 1,024,375

Preferred Members' Interest - A

Preferred Members' Interest - Additional Information (Detail) - Mediacom LLC [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jul. 31, 2001
Class Of Stock [Line Items]
Preferred equity investment				$ 150
Percentage of annual cash dividend on preferred equity investment	12.00%
Cash dividends on PMI	$ 18	$ 18	$ 18

Member's Equity - Additional In

Member's Equity - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Equity [Abstract]
Capital contributions from parent	$ 208,000	$ 60,000	$ 75,000
Capital distributions to parent	$ 10,500	$ 121,050	$ 7,000

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Related Party Transaction [Line Items]
Management fees charged by MCC	$ 24,000	$ 21,665	$ 20,800
MCC [Member]
Related Party Transaction [Line Items]
Management fees charged by MCC	$ 24,000	$ 21,700	$ 20,800
MCC [Member] | Management Fees [Member] | Operating Revenues [Member] | Maximum [Member]
Related Party Transaction [Line Items]
Rate of annual gross operating revenues of our operating subsidiaries	4.00%

Employee Benefits Plans - Addit

Employee Benefits Plans - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Defined Contribution Plan Disclosure [Line Items]
Present matching contribution of employee	50.00%
Percentage of employee contribution	6.00%
Service Costs and Selling, General and Administrative Expenses [Member]
Defined Contribution Plan Disclosure [Line Items]
Total contribution	$ 1.3	$ 1.4	$ 1.2

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Rental expense	$ 4	$ 3.8	$ 4.1
Total rental expense for utility poles	5	$ 4.8	$ 4.2
Letters of credit issued	$ 9.6

Commitments and Contingencies_2

Commitments and Contingencies - Summary of Future Minimum Annual Rental Payments (Detail) $ in Thousands	Dec. 31, 2018USD ($)
Commitments and Contingencies Disclosure [Abstract]
January 1, 2019 to December 31, 2019	$ 2,289
January 1, 2020 to December 31, 2020	1,831
January 1, 2021 to December 31, 2021	1,683
January 1, 2022 to December 31, 2022	1,454
January 1, 2023 to December 31, 2023	985
Thereafter	2,398
Total	$ 10,640

Revenue Recognition - Additiona

Revenue Recognition - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2018USD ($)Segment	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)
Disaggregation of Revenue [Line Items]
Number of reporting segments affected | Segment	1
Franchise fees imposed by local governmental authorities	$ 456,527,000	$ 439,990,000	$ 419,406,000
Contract with Customer, Liability, Revenue Recognized	22,300,000
Costs incurred to obtain or fulfill a contract with a customer	14,700,000
Franchise [Member]
Disaggregation of Revenue [Line Items]
Franchise fees imposed by local governmental authorities	20,200,000	$ 20,700,000	$ 22,700,000
Short-term [Member]
Disaggregation of Revenue [Line Items]
Costs incurred to obtain or fulfill a contract with a customer	7,200,000
Long-term [Member]
Disaggregation of Revenue [Line Items]
Costs incurred to obtain or fulfill a contract with a customer	7,500,000
Accounts Receivable [Member]
Disaggregation of Revenue [Line Items]
Impairment of receivables	$ 0
Specified Contract Term and Non-Cancelable Service Period [Member] | Minimum [Member]
Disaggregation of Revenue [Line Items]
Contract term	1 year
Specified Contract Term and Non-Cancelable Service Period [Member] | Maximum [Member]
Disaggregation of Revenue [Line Items]
Contract term	10 years
Residential Contracts [Member]
Disaggregation of Revenue [Line Items]
Installation services, period of benefit	3 years
Amortization period	Three years
Other Contracts [Member] | Minimum [Member]
Disaggregation of Revenue [Line Items]
Installation services, period of benefit	1 year
Other Contracts [Member] | Maximum [Member]
Disaggregation of Revenue [Line Items]
Installation services, period of benefit	10 years
Commercial and Enterprise Contracts [Member] | Minimum [Member]
Disaggregation of Revenue [Line Items]
Amortization period	1 years
Commercial and Enterprise Contracts [Member] | Maximum [Member]
Disaggregation of Revenue [Line Items]
Amortization period	10 years
Costs to Fulfill a Contract - Installation Activities [Member]
Disaggregation of Revenue [Line Items]
Amortization recognized	$ 1,800,000
Costs to Obtain a Contract - Commissions [Member]
Disaggregation of Revenue [Line Items]
Amortization recognized	$ 6,600,000

Revenue Recognition - Summary o

Revenue Recognition - Summary of Disaggregation of Revenue Qualitative Reconciliation (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disaggregation of Revenue [Line Items]
Total revenues	$ 1,100,676	$ 1,059,086	$ 1,033,239
Video [Member]
Disaggregation of Revenue [Line Items]
Total revenues	422,485
Data [Member]
Disaggregation of Revenue [Line Items]
Total revenues	406,922
Phone [Member]
Disaggregation of Revenue [Line Items]
Total revenues	61,647
Business [Member]
Disaggregation of Revenue [Line Items]
Total revenues	165,665
Advertising [Member]
Disaggregation of Revenue [Line Items]
Total revenues	$ 43,957

Sale of Assets - Additional Inf

Sale of Assets - Additional Information (Detail) - USD ($) $ in Thousands	Sep. 25, 2018	Mar. 15, 2018	Dec. 21, 2017	Dec. 31, 2018	Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net book value				$ 850,638	$ 825,348
CTI Towers [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net book value	$ 100	$ 100	$ 100
Reduction of asset retirement obligation (liability) in conjunction of sale	$ 1,400	$ 1,400	$ 1,400

Hurricane Michael - Additional

Hurricane Michael - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2018USD ($)
Unusual or Infrequent Items, or Both [Abstract]
Additions to capital expenditures	$ 7.9

Deferred Compensation - Additio

Deferred Compensation - Additional Information (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Accounts payable, accrued expenses and other current liabilitiese	$ 146,080	$ 147,739
Selling, General and Administrative Expenses [Member]
Accounts payable, accrued expenses and other current liabilitiese	$ 800

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts (Detail) (Detail) - Current Receivables [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at beginning of period	$ 3,364	$ 3,857	$ 3,627
Additions, Charged to costs and expenses	3,799	3,557	5,896
Additions - Charged to other accounts	0	0	0
Deductions, Charged to costs and expenses	3,610	4,050	5,666
Balance at end of period	$ 3,553	$ 3,364	$ 3,857