Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 158,781	$ 325,276	$ 309,802	$ 534,346
Other comprehensive income (loss):
Foreign currency translation adjustment	(28,232)	(3,717)	(46,702)	(14,063)
Other comprehensive income (loss) before tax	(28,232)	(3,717)	(46,702)	(14,063)
Income tax expense (benefit) related to items of other comprehensive income (loss)	68	(601)	(876)	(2,067)
Total other comprehensive income (loss), net of tax	(28,300)	(3,116)	(45,826)	(11,996)
Comprehensive income	130,481	322,160	263,976	522,350
Less: Comprehensive income (loss) attributable to noncontrolling interests	(5,281)	252	(8,173)	231
Comprehensive income attributable to UHS	$ 135,762	$ 321,908	$ 272,149	$ 522,119