CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY Statement - USD ($) $ in Thousands	Total	Common Stock and Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Earnings (loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	$ 1,834,558	$ 91,162	$ 1,856,756	$ (113,360)
Balance at end of period	1,834,558	91,162	1,856,756	(113,360)
Net earnings	39,195		39,195
Repurchase of common stock	(94,956)	(94,956)
Common stock issued pursuant to stock-based compensation plans, net	3,232	3,232
Adjustments to Additional Paid in Capital, Share-based Compensation, Stock Options, Requisite Service Period Recognition	5,926	5,926
Dividends paid	(22,232)		(22,232)
Temporary Equity, Foreign Currency Translation Adjustments	$ 13,937			13,937
Common Stock, Dividends, Per Share, Cash Paid	$ 0.16
Balance at beginning of period	$ 1,859,940	5,364	1,953,999	(99,423)
Cumulative Effect of New Accounting Principle in Period of Adoption	80,280		80,280
Balance at end of period	1,859,940	5,364	1,953,999	(99,423)
Balance at beginning of period	1,876,786	1,355	2,024,523	(149,092)
Balance at end of period	1,876,786	1,355	2,024,523	(149,092)
Net earnings	61,748		61,748
Repurchase of common stock	(24,998)	(16,999)	(7,999)
Common stock issued pursuant to stock-based compensation plans, net	8,708	8,708
Adjustments to Additional Paid in Capital, Share-based Compensation, Stock Options, Requisite Service Period Recognition	8,290	8,290
Dividends paid	(23,031)		(23,031)
Derivative, Gain (Loss) on Derivative, Net	(807)			(807)
Temporary Equity, Foreign Currency Translation Adjustments	$ (7,440)			(7,440)
Common Stock, Dividends, Per Share, Cash Paid	$ 0.17
Balance at beginning of period	$ 1,902,695	1,354	2,058,680	(157,339)
Cumulative Effect of New Accounting Principle in Period of Adoption	3,439		3,439
Balance at end of period	$ 1,902,695	$ 1,354	$ 2,058,680	$ (157,339)