SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Condensed Consolidating Statements of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Condensed Financial Statements Captions [Line Items]
Revenues	$ 78,495		$ 81,571		$ 149,964	$ 159,516
Total costs and expenses	(85,254)		(90,309)		(166,086)	(176,280)
Other loss	(3,429)				(3,429)	(5,205)
Interest expense	(9,346)		(8,107)		(22,517)	(15,220)
Loss on debt extinguishment	(8,478)				(8,478)
Loss from operations before income taxes	(28,012)		(16,845)		(50,546)	(37,189)
Income tax benefit	(6,386)		(172)		(6,386)	2,249
Net loss	(34,398)	$ (22,534)	(17,017)	$ (17,923)	(56,932)	(34,940)
Parent
Condensed Financial Statements Captions [Line Items]
Net loss from equity investment in subsidiaries	(30,577)		(15,657)		(51,753)	(32,222)
Interest expense	(2,883)		(1,359)		(4,241)	(2,717)
Loss on debt extinguishment	(938)				(938)
Loss from operations before income taxes	(34,398)		(17,016)		(56,932)	(34,939)
Net loss	(34,398)		(17,016)		(56,932)	(34,939)
Subsidiary Issuer
Condensed Financial Statements Captions [Line Items]
Revenues	1,439		1,425		3,003	3,050
Total costs and expenses	(4,038)		(3,776)		(8,558)	(7,086)
Net loss from equity investment in subsidiaries	(22,358)		(12,309)		(41,283)	(27,102)
Interest expense	(3,822)		(2,087)		(5,909)	(4,174)
Loss on debt extinguishment	(1,441)				(1,441)
Loss from operations before income taxes	(30,220)		(16,747)		(54,188)	(35,312)
Net loss	(30,220)		(16,747)		(54,188)	(35,312)
Guarantor Subsidiaries
Condensed Financial Statements Captions [Line Items]
Revenues	65,749		69,595		125,501	135,384
Total costs and expenses	(66,980)		(74,911)		(132,915)	(145,824)
Other loss	(1,346)				(1,346)	(5,205)
Interest expense	(2,369)		(4,404)		(11,825)	(7,820)
Loss on debt extinguishment	(6,099)				(6,099)
Loss from operations before income taxes	(11,045)		(9,720)		(26,684)	(23,465)
Income tax benefit	(6,386)		(172)		(6,386)	2,249
Net loss	(17,431)		(9,892)		(33,070)	(21,216)
Non-Guarantor Subsidiaries
Condensed Financial Statements Captions [Line Items]
Revenues	13,068		13,414		24,200	26,274
Total costs and expenses	(15,997)		(14,485)		(27,353)	(28,562)
Other loss	(2,083)				(2,083)
Interest expense	(272)		(257)		(542)	(509)
Loss from operations before income taxes	(5,284)		(1,328)		(5,778)	(2,797)
Net loss	(5,284)		(1,328)		(5,778)	(2,797)
Eliminations
Condensed Financial Statements Captions [Line Items]
Revenues	(1,761)		(2,863)		(2,740)	(5,192)
Total costs and expenses	1,761		2,863		2,740	5,192
Net loss from equity investment in subsidiaries	52,935		27,966		93,036	59,324
Loss from operations before income taxes	52,935		27,966		93,036	59,324
Net loss	$ 52,935		$ 27,966		$ 93,036	$ 59,324