Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net earnings	$ 118,736	$ 102,797	$ 344,397	$ 278,720
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments, net of tax of $11,669 and $9,954 for the three months ended September 30, 2015 and 2014 and $19,866 and $8,560 for the nine months ended September 30, 2015 and 2014	(21,692)	(18,351)	(37,081)	(15,743)
Reclassification adjustment for foreign currency realized losses, net of tax of $61 for the nine months ended September 30, 2014	0	0	0	111
Other comprehensive loss	(21,692)	(18,351)	(37,081)	(15,632)
Comprehensive income	97,044	84,446	307,316	263,088
Less comprehensive income attributable to the noncontrolling interest	35	234	804	1,094
Comprehensive income attributable to shareholders	$ 97,009	$ 84,212	$ 306,512	$ 261,994