Condensed Consolidated Statements of Changes in Stockholders' Equity (unaudited) (USD $) In Thousands	Total	Common stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive earnings	Treasury stock
Beginning Balance at Dec. 31, 2010	$ 2,750,907	$ 971	$ 1,045,286	$ 1,680,849	$ 43,978	$ (20,177)
Net earnings	305,571	0	0	305,571	0	0
Stock option exercises		4	14,475	0	0	0
Treasury stock sold		0	1,385	0	0	204
Currency translation adjustments, net of tax	1,703	0	0	0	1,703	0
Stock based compensation		0	22,940	0	0	0
Restricted stock activity		3	(4,987)	0	0	0
Stock option tax benefit, net of shortfalls		0	3,999	0	0	0
Conversion of senior subordinated convertible notes		4	4,147	0	0	0
Dividends declared		0	0	(31,692)	0	0
Ending Balance at Sep. 30, 2011	$ 3,068,663	$ 982	$ 1,087,245	$ 1,954,728	$ 45,681	$ (19,973)