Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net earnings	$ 379,460us-gaap_ProfitLoss	$ 350,011us-gaap_ProfitLoss	$ 332,969us-gaap_ProfitLoss
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments, net of tax of $17,348 in 2014, $6,574 in 2013 and $4,419 in 2012	(32,080)	(12,420)	8,164
Reclassification adjustments for foreign currency realized losses, net of tax of $61 in 2014 and $348 in 2012	111	0	647
Other comprehensive (loss) income	(31,969)	(12,420)	8,811
Comprehensive income	347,491	337,591	341,780
Less comprehensive income (loss) attributable to the noncontrolling interest	2,155	1,064	(278)
Comprehensive income attributable to shareholders	$ 345,336us-gaap_ComprehensiveIncomeNetOfTax	$ 336,527us-gaap_ComprehensiveIncomeNetOfTax	$ 342,058us-gaap_ComprehensiveIncomeNetOfTax

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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