Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net earnings	$ 80,610	$ 76,722
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments, net of tax of $5,478 and $5,499 for the three months ended March 31, 2013 and 2012	(10,013)	10,162
Other comprehensive (loss) income	(10,013)	10,162
Comprehensive income	70,597	86,884
Less comprehensive income attributable to the noncontrolling Interest	281	149
Comprehensive income attributable to shareholders	$ 70,316	$ 86,735