Accounts Payable, Accrued Expenses and Other Current Liabilities - Summary of Accounts Payable, Accrued Expenses and Other Current Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Payables and Accruals [Abstract]
Accrued programming costs	$ 35,503	$ 33,335
Accounts payable - trade	29,632	32,237
Accrued taxes and fees	17,349	17,761
Accrued payroll and benefits	15,048	15,412
Accrued property, plant and equipment	10,319	10,132
Accrued service costs	9,264	5,624
Advance customer payments	8,410	8,689
Bank overdrafts	6,904	8,067
Accrued administrative costs	5,903	5,568
Accrued interest	5,292	2,809
Accrued marketing costs	3,962	3,694
Accrued telecommunications costs	971	1,036
Other accrued expenses	1,258	1,716
Accounts payable, accrued expenses and other current liabilities	$ 149,815	$ 146,080