Income Taxes - Summary of Tax Effects of Temporary Differences (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Net operating losses and other carryforwards	$ 41,299	$ 38,010
Interest expense carryforward	20,070	9,276
Property and equipment	2,221
Accrued expenses	82	701
Allowance for doubtful accounts	1,517	1,194
Stock-based compensation		916
Other	633	1,028
Deferred tax asset	65,822	51,125
Valuation allowance	(51,895)	(36,595)	$ (22,513)
Total deferred tax assets, net of valuation allowance	13,927	14,530
Property and equipment		(510)
Intangible assets	(20,098)	(19,283)
Prepaid expenses	(73)	(812)
Other	(50)
Deferred tax liability	(20,221)	(20,605)
Net deferred tax liability	$ (6,294)	$ (6,075)