SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Condensed Consolidating Statements of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Condensed Financial Statements Captions [Line Items]
Total revenues	$ 70,707		$ 78,495		$ 141,952	$ 149,964
Total costs and expenses	(70,883)		(85,254)		(143,639)	(166,086)
Gain on sale of businesses	7,034				31,120
Other losses	(2,169)		(3,429)		(2,169)	(3,429)
Interest expense	(12,095)		(9,346)		(24,379)	(22,517)
Loss on debt extinguishment			(8,478)			(8,478)
(Loss) income from operations before income taxes	(7,406)		(28,012)		2,885	(50,546)
Income tax benefit (expense)	3,492		(6,386)		2,204	(6,386)
Net (loss) income	(3,914)	$ 9,003	(34,398)	$ (22,534)	5,089	(56,932)
Parent
Condensed Financial Statements Captions [Line Items]
Net (loss) income from equity investment in subsidiaries	(3,914)		(30,577)		5,089	(51,753)
Interest expense			(2,883)			(4,241)
Loss on debt extinguishment			(938)			(938)
(Loss) income from operations before income taxes	(3,914)		(34,398)		5,089	(56,932)
Net (loss) income	(3,914)		(34,398)		5,089	(56,932)
Partnership
Condensed Financial Statements Captions [Line Items]
Net (loss) income from equity investment in subsidiaries	4,273				21,974
Interest expense	(8,187)				(16,885)
(Loss) income from operations before income taxes	(3,914)				5,089
Net (loss) income	(3,914)				5,089
CFS West Virginia
Condensed Financial Statements Captions [Line Items]
Total revenues	1,197		1,439		2,391	3,003
Total costs and expenses	(3,803)		(4,038)		(6,972)	(8,558)
Net (loss) income from equity investment in subsidiaries	(3,398)		(22,358)		9,187	(41,283)
Interest expense	(1,798)		(3,822)		(3,709)	(5,909)
Loss on debt extinguishment			(1,441)			(1,441)
(Loss) income from operations before income taxes	(7,802)		(30,220)		897	(54,188)
Net (loss) income	(7,802)		(30,220)		897	(54,188)
Guarantor Subsidiaries
Condensed Financial Statements Captions [Line Items]
Total revenues	58,703		65,749		118,401	125,501
Total costs and expenses	(57,161)		(66,980)		(116,145)	(132,915)
Gain on sale of businesses	7,034				31,120
Other losses	(2,169)		(1,346)		(2,169)	(1,346)
Interest expense	(1,814)		(2,369)		(3,196)	(11,825)
Loss on debt extinguishment			(6,099)			(6,099)
(Loss) income from operations before income taxes	4,593		(11,045)		28,011	(26,684)
Income tax benefit (expense)	3,492		(6,386)		2,204	(6,386)
Net (loss) income	8,085		(17,431)		30,215	(33,070)
Non-Guarantor Subsidiaries
Condensed Financial Statements Captions [Line Items]
Total revenues	13,605		13,068		26,674	24,200
Total costs and expenses	(12,717)		(15,997)		(26,036)	(27,353)
Other losses			(2,083)			(2,083)
Interest expense	(296)		(272)		(589)	(542)
(Loss) income from operations before income taxes	592		(5,284)		49	(5,778)
Net (loss) income	592		(5,284)		49	(5,778)
Eliminations
Condensed Financial Statements Captions [Line Items]
Total revenues	(2,798)		(1,761)		(5,514)	(2,740)
Total costs and expenses	2,798		1,761		5,514	2,740
Net (loss) income from equity investment in subsidiaries	3,039		52,935		(36,250)	93,036
(Loss) income from operations before income taxes	3,039		52,935		(36,250)	93,036
Net (loss) income	$ 3,039		$ 52,935		$ (36,250)	$ 93,036