SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Condensed Consolidating Statements of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Condensed Financial Statements Captions [Line Items]
Total revenues	$ 76,856			$ 73,151			$ 218,808	$ 223,115
Total costs and expenses	(73,645)			(79,592)			(217,284)	(245,678)
Gain on sale of businesses							31,120
Other losses				(129)			(2,169)	(3,558)
Interest expense	(12,197)			(12,765)			(36,576)	(35,282)
Loss on debt extinguishment								(8,478)
Loss on impairment of goodwill				(24,862)				(24,862)
Loss from operations before income taxes	(8,986)			(44,197)			(6,101)	(94,743)
Income tax benefit (expense)	1,129			1,545			3,333	(4,841)
Net loss	(7,857)	$ (3,914)	$ 9,003	(42,652)	$ (34,398)	$ (22,534)	(2,768)	(99,584)
Parent
Condensed Financial Statements Captions [Line Items]
Net (loss) income from equity investment in subsidiaries	(7,857)			(42,652)			(2,768)	(94,405)
Interest expense								(4,241)
Loss on debt extinguishment								(938)
Loss from operations before income taxes	(7,857)			(42,652)			(2,768)	(99,584)
Net loss	(7,857)			(42,652)			(2,768)	(99,584)
Partnership
Condensed Financial Statements Captions [Line Items]
Net (loss) income from equity investment in subsidiaries	1,689						23,663
Interest expense	(9,546)						(26,431)
Loss from operations before income taxes	(7,857)						(2,768)
Net loss	(7,857)						(2,768)
CFS West Virginia
Condensed Financial Statements Captions [Line Items]
Total revenues	1,267			1,257			3,658	4,260
Total costs and expenses	(2,334)			(3,336)			(9,306)	(11,894)
Net (loss) income from equity investment in subsidiaries	(4,727)			(33,050)			4,460	(74,333)
Interest expense	(381)						(4,090)	(5,909)
Loss on debt extinguishment								(1,441)
Loss from operations before income taxes	(6,175)			(35,129)			(5,278)	(89,317)
Net loss	(6,175)			(35,129)			(5,278)	(89,317)
Guarantor Subsidiaries
Condensed Financial Statements Captions [Line Items]
Total revenues	65,262			61,520			183,663	187,021
Total costs and expenses	(62,388)			(64,596)			(178,533)	(197,511)
Gain on sale of businesses							31,120
Other losses				(129)			(2,169)	(1,475)
Interest expense	(1,971)			(12,486)			(5,167)	(24,311)
Loss on debt extinguishment								(6,099)
Loss on impairment of goodwill				(24,206)				(24,206)
Loss from operations before income taxes	903			(39,897)			28,914	(66,581)
Income tax benefit (expense)	1,129			1,545			3,333	(4,841)
Net loss	2,032			(38,352)			32,247	(71,422)
Non-Guarantor Subsidiaries
Condensed Financial Statements Captions [Line Items]
Total revenues	13,275			12,154			39,949	36,354
Total costs and expenses	(11,871)			(13,440)			(37,907)	(40,793)
Other losses								(2,083)
Interest expense	(299)			(279)			(888)	(821)
Loss on impairment of goodwill				(656)				(656)
Loss from operations before income taxes	1,105			(2,221)			1,154	(7,999)
Net loss	1,105			(2,221)			1,154	(7,999)
Eliminations
Condensed Financial Statements Captions [Line Items]
Total revenues	(2,948)			(1,780)			(8,462)	(4,520)
Total costs and expenses	2,948			1,780			8,462	4,520
Net (loss) income from equity investment in subsidiaries	10,895			75,702			(25,355)	168,738
Loss from operations before income taxes	10,895			75,702			(25,355)	168,738
Net loss	$ 10,895			$ 75,702			$ (25,355)	$ 168,738