Condensed Consolidated Statments of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net earnings	$ 84,021	$ 95,020	$ 160,743	$ 186,227
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments, net of tax of $6,257 and $3,014 for the three months ended June 30, 2012 and 2011, and $758 and $7,855 for the six months ended June 30, 2012 and 2011	(11,453)	5,372	(1,291)	14,193
Other comprehensive income (loss)	(11,453)	5,372	(1,291)	14,193
Comprehensive income	72,568	100,392	159,452	200,420
Less comprehensive income (loss) attributable to the noncontrolling Interest	22	(109)	171	(146)
Comprehensive income attributable to shareholders	$ 72,546	$ 100,501	$ 159,281	$ 200,566