CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Statement of Income and Comprehensive Income [Abstract]
Net earnings	$ 48,139	$ 51,315	[1]
Other comprehensive income, net of tax:
Foreign currency translation adjustments	17,139	30,209
Comprehensive income	$ 65,278	$ 81,524

[1] Amounts have been adjusted for the reclassification of certain discontinued operations to continuing operations.