Components of Equity (Tables)

9 Months Ended

Sep. 30, 2013

Stockholders' Equity Note [Abstract]

Schedule of Components of Equity Disclosure

The components of equity for the nine months ended September 30,2013 and 2012 are as follows:

	Shareholders’ equity			Noncontrolling interest		Total equity
Balance at December 31, 2012	$	2,027,699		4,871		2,032,570
Exercise of stock options	28,115			—		28,115
Issuance of shares under stock purchase plan	23,977			—		23,977
Shares repurchased under provisions of stock repurchase plans	(125,206		)	—		(125,206	)
Stock compensation expense	33,060			—		33,060
Tax benefits from stock plans, net	1,280			—		1,280
Net earnings	265,030			972		266,002
Other comprehensive loss	(11,970		)	(305	)	(12,275	)
Dividends paid ($.30 per share)	(61,899		)	—		(61,899	)
Purchase of noncontrolling interest	(507		)	(3,226	)	(3,733	)
Distributions to noncontrolling interest	—			(1,161	)	(1,161	)
Balance at September 30, 2013	$	2,179,579		1,151		2,180,730
Balance at December 31, 2011	$	2,003,638		6,431		2,010,069
Exercise of stock options	21,610			—		21,610
Issuance of shares under stock purchase plan	23,391			—		23,391
Shares repurchased under provisions of stock repurchase plans	(193,493		)	—		(193,493	)
Stock compensation expense	32,846			—		32,846
Tax benefits from stock plans, net	4,000			—		4,000
Net earnings	249,152			318		249,470
Other comprehensive income	8,231			110		8,341
Dividends paid ($.28 per share)	(59,358		)	—		(59,358	)
Distributions to noncontrolling interest	—			(1,177	)	(1,177	)
Balance at September 30, 2012	$	2,090,017		5,682		2,095,699