CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ (75,192)	$ (53,886)	$ (130,275)	$ (178,314)
Amortization and recognition of unrecognized pension cost components, net of income taxes	49	114	146	39
Comprehensive income (loss)	(75,143)	(53,772)	(130,129)	(178,275)
Less: Comprehensive income (loss) attributable to noncontrolling interests	736	54	1,532	1,200
Comprehensive income (loss) attributable to Quorum Health Corporation	$ (75,879)	$ (53,826)	$ (131,661)	$ (179,475)