Components of Equity (Tables)

9 Months Ended

Sep. 30, 2016

Stockholders' Equity Note [Abstract]

Schedule of Components of Equity Disclosure

The components of equity for the nine months ended September 30,2016 and 2015 are as follows:

	Shareholders’ equity			Noncontrolling interest		Total equity
Balance at December 31, 2015	$	1,691,993		2,683		1,694,676
Exercise of stock options	119,509			—		119,509
Issuance of shares under stock purchase plan	28,136			—		28,136
Shares repurchased under provisions of stock repurchase plans	(268,097		)	—		(268,097	)
Stock compensation expense	34,264			—		34,264
Tax deficiency from stock plans, net	(2,533		)	—		(2,533	)
Net earnings	320,217			1,218		321,435
Other comprehensive loss	(406		)	(51	)	(457	)
Dividends paid ($0.40 per share)	(73,000		)	—		(73,000	)
Balance at September 30, 2016	$	1,850,083		3,850		1,853,933
Balance at December 31, 2014	$	1,868,408		3,200		1,871,608
Exercise of stock options	88,851			—		88,851
Issuance of shares under stock purchase plan	25,850					25,850
Shares repurchased under provisions of stock repurchase plans	(415,475		)	—		(415,475	)
Stock compensation expense	32,489			—		32,489
Tax benefits from stock plans, net	1,191			—		1,191
Net earnings	342,774			1,623		344,397
Other comprehensive loss	(36,262		)	(819	)	(37,081	)
Dividends paid ($0.36 per share)	(68,781		)	—		(68,781	)
Distributions to noncontrolling interest	—			(857	)	(857	)
Balance at September 30, 2015	$	1,839,045		3,147		1,842,192