Earnings Per Share Data ("EPS") and Stock Based Compensation (Tables)

6 Months Ended

Jun. 30, 2018

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Computation of Basic and Diluted Earnings per Share for Classes A, B, C and D Common Stockholders

The following table sets forth the computation of basic and diluted earnings per share for classes A, B, C and D common stockholders for the periods indicated (in thousands, except per share data): 

	Three months ended June 30,						Six months ended June 30,
	2018			2017			2018			2017
Basic and Diluted:
Net income attributable to UHS	$	226,052		$	185,394		$	449,884		$	391,449
Less: Net income attributable to unvested restricted share    grants		(392	)		(82	)		(496	)		(176	)
Net income attributable to UHS – basic and diluted	$	225,660		$	185,312		$	449,388		$	391,273
Weighted average number of common shares - basic		93,842			96,247			94,034			96,416
Net effect of dilutive stock options and grants based on the    treasury stock method		439			795			448			791
Weighted average number of common shares and    equivalents - diluted		94,281			97,042			94,482			97,207
Earnings per basic share attributable to UHS:	$	2.40		$	1.93		$	4.78		$	4.06
Earnings per diluted share attributable to UHS:	$	2.39		$	1.91		$	4.76		$	4.03