Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net earnings	$ 118,329	$ 91,728	$ 225,661	$ 175,923
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments, net of tax of $2,363 and $2,723 for the three months ended June 30, 2015 and 2014 and $8,197 and $1,394 for the six months ended June 30, 2015 and 2014	4,216	4,985	(15,389)	2,608
Reclassification adjustment for foreign currency realized losses, net of tax of $61 for the three and six months ended June 30, 2014	0	111	0	111
Other comprehensive income (loss)	4,216	5,096	(15,389)	2,719
Comprehensive income	122,545	96,824	210,272	178,642
Less comprehensive income attributable to the noncontrolling interest	472	440	769	860
Comprehensive income attributable to shareholders	$ 122,073	$ 96,384	$ 209,503	$ 177,782