Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net earnings	$ 91,728	$ 92,663	$ 175,923	$ 173,273
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments, net of tax of $2,723 and $5,938 for the three months ended June 30, 2014 and 2013, and $1,394 and $11,416 for the six months ended June 30, 2014 and 2013	4,985	(11,013)	2,608	(21,026)
Reclassification adjustment for foreign currency realized losses, net of tax of $61 for the three and six months ended June 30, 2014	111	0	111	0
Other comprehensive income (loss)	5,096	(11,013)	2,719	(21,026)
Comprehensive income	96,824	81,650	178,642	152,247
Less comprehensive income attributable to the noncontrolling interest	440	175	860	456
Comprehensive income attributable to shareholders	$ 96,384	$ 81,475	$ 177,782	$ 151,791