Earnings Per Share (Summary of Computation of Basic and Diluted Earnings (Loss) Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Numerator:
Net income (loss)	$ (16,477)	$ (25,941)	$ (55,083)	$ (124,428)
Less: Net income (loss) attributable to noncontrolling interests	396	665	796	1,146
Net income (loss) attributable to Quorum Health Corporation	$ (16,873)	$ (26,606)	$ (55,879)	$ (125,574)
Denominator:
Weighted-average shares outstanding - basic and diluted	30,001,208	28,995,564	29,721,167	28,726,445
Earnings (loss) per share attributable to Quorum Health Corporation stockholders - basic and diluted	$ (0.56)	$ (0.92)	$ (1.88)	$ (4.37)