Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 162,375	$ 151,021
Other comprehensive income (loss):
Foreign currency translation adjustment	4,198	(18,470)
Other comprehensive income (loss) before tax	4,198	(18,470)
Income tax expense (benefit) related to items of other comprehensive income (loss)	(424)	(944)
Total other comprehensive income (loss), net of tax	4,622	(17,526)
Comprehensive income	166,997	133,495
Less: Comprehensive income (loss) attributable to noncontrolling interests	(740)	(2,892)
Comprehensive income attributable to UHS	$ 167,737	$ 136,387