Condensed Consolidated Statement of Changes in Stockholders' Equity (unaudited) - 6 months ended Jun. 30, 2015 - USD ($) $ in Thousands	Common stock [Member]	Additional paid-in capital [Member]	Retained earnings [Member]	Accumulated other comprehensive earnings [Member]	Treasury stock [Member]	Total
Beginning Balance at Dec. 31, 2014	$ 1,021	$ 1,325,338	$ 3,520,201	$ (71,927)	$ (19,273)	$ 4,755,360
Net earnings	0	0	327,053	0	0	327,053
Stock option exercises	2	17,010	0	0	0	17,012
Treasury stock sold	0	1,385	0	0	92	1,477
Currency translation adjustments, net of tax	0	0	0	(54,798)	0	(54,798)
Stock based compensation	0	29,438	0	0	0	29,438
Restricted stock activity	3	(1,701)	0	0	0	(1,698)
Stock option tax benefit, net of shortfalls	0	8,755	0	0	0	8,755
Conversion of senior subordinated convertible notes, net of tax	0	(11,890)	0	0	0	(11,890)
Dividends declared	0	0	(50,297)	0	0	(50,297)
Post retirement benefit plan adjustments	0	0	0	(1,063)	0	(1,063)
Ending Balance at Jun. 30, 2015	$ 1,026	$ 1,368,335	$ 3,796,957	$ (127,788)	$ (19,181)	$ 5,019,349