CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE EARNINGS (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
Net earnings	$ 209,510us-gaap_NetIncomeLoss	$ 160,138us-gaap_NetIncomeLoss
Foreign currency translation adjustments [Abstract]
Foreign currency translation gains (losses) during period	(83,829)	(17,373)
Reclassification of foreign currency translation losses to earnings upon sale of subsidiaries	(280)	0
Total foreign currency translation, net of tax	(84,109)	(17,373)
Pension and other postretirement benefit plans [Abstract]
Amortization of actuarial losses included in net periodic pension cost	2,598	1,442
Amortization of prior service cost included in net periodic pension cost	1,228	1,392
Total pension and other postretirement benefit plans, net of tax	3,826	2,834
Changes in fair value of cash flow hedges [Abstract]
Unrealized net (losses) gains arising during period	1,158	(474)
Net (gains) losses reclassified into earnings	(99)	(139)
Total cash flow hedges, net of tax	1,059	(613)
Other comprehensive earnings (loss) other adjustment, net of tax	214	(126)
Other comprehensive earnings (loss), net of tax	(79,010)	(15,278)
Comprehensive earnings	$ 130,500us-gaap_ComprehensiveIncomeNetOfTax	$ 144,860us-gaap_ComprehensiveIncomeNetOfTax

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