CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS (Unaudited) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Statement of Comprehensive Income [Abstract]    
NET INCOME $ 30,281 $ 25,766
Other comprehensive earnings (loss), net of tax    
Foreign currency translation adjustments (7,149) 1,534
Other comprehensive earnings (loss) (7,149) 1,534
Comprehensive earnings $ 23,132 $ 27,300