Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net earnings	$ 102,797	$ 92,729	$ 278,720	$ 266,002
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments, net of tax of $9,954 and $4,859 for the three months ended September 30, 2014 and 2013, and $8,560 and $6,557 for the nine months ended September 30, 2014 and 2013	(18,351)	8,751	(15,743)	(12,275)
Reclassification adjustment for foreign currency realized losses, net of tax of $61 for the nine months ended September 30, 2014	0	0	111	0
Other comprehensive (loss) income	(18,351)	8,751	(15,632)	(12,275)
Comprehensive income	84,446	101,480	263,088	253,727
Less comprehensive income attributable to the noncontrolling interest	234	211	1,094	667
Comprehensive income attributable to shareholders	$ 84,212	$ 101,269	$ 261,994	$ 253,060