SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Condensed Consolidating Statements of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Condensed Financial Statements Captions [Line Items]
Total revenues	$ 78,313	$ 65,102
Total costs and expenses	(74,729)	(67,233)
Interest expense	(10,473)	(11,353)
Loss from continuing operations before income taxes	(6,889)	(13,484)
Income tax benefit (expense)	1,676	(1,288)
Net loss from continuing operations	(5,213)	(14,772)
Income from operations of discontinued businesses	589	23,775
Net income from discontinued operations	589	23,775
Net (loss) income	(4,624)	9,003
Parent
Condensed Financial Statements Captions [Line Items]
Net (loss) income from equity investment in subsidiaries	(4,624)	9,003
Loss from continuing operations before income taxes	(4,624)	9,003
Net loss from continuing operations	(4,624)	9,003
Net (loss) income	(4,624)	9,003
Partnership
Condensed Financial Statements Captions [Line Items]
Net (loss) income from equity investment in subsidiaries	2,972	17,701
Interest expense	(7,596)	(8,698)
Loss from continuing operations before income taxes	(4,624)	9,003
Net loss from continuing operations	(4,624)	9,003
Net (loss) income	(4,624)	9,003
CFS West Virginia
Condensed Financial Statements Captions [Line Items]
Total revenues	1,790	1,194
Total costs and expenses	(2,780)	(3,169)
Net (loss) income from equity investment in subsidiaries	(3,404)	12,585
Interest expense	(917)	(1,911)
Loss from continuing operations before income taxes	(5,311)	8,699
Net loss from continuing operations	(5,311)	8,699
Net (loss) income	(5,311)	8,699
Guarantor Subsidiaries
Condensed Financial Statements Captions [Line Items]
Total revenues	64,673	53,555
Total costs and expenses	(61,585)	(53,461)
Interest expense	(1,655)	(451)
Loss from continuing operations before income taxes	1,433	(357)
Income tax benefit (expense)	1,676	(1,288)
Net loss from continuing operations	3,109	(1,645)
Income from operations of discontinued businesses	589	23,775
Net income from discontinued operations	589	23,775
Net (loss) income	3,698	22,130
Non-Guarantor Subsidiaries
Condensed Financial Statements Captions [Line Items]
Total revenues	15,912	13,069
Total costs and expenses	(14,426)	(13,319)
Interest expense	(305)	(293)
Loss from continuing operations before income taxes	1,181	(543)
Net loss from continuing operations	1,181	(543)
Net (loss) income	1,181	(543)
Eliminations
Condensed Financial Statements Captions [Line Items]
Total revenues	(4,062)	(2,716)
Total costs and expenses	4,062	2,716
Net (loss) income from equity investment in subsidiaries	5,056	(39,289)
Loss from continuing operations before income taxes	5,056	(39,289)
Net loss from continuing operations	5,056	(39,289)
Net (loss) income	$ 5,056	$ (39,289)