Consolidated and Combined Statements of Comprehensive Income (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Statement of Comprehensive Income [Abstract]      
Net income $ 22,812 $ 84,392 $ 74,665
Other comprehensive income (loss), net of tax      
Foreign currency translation adjustments (1,642) 607 1,052
Total comprehensive income $ 21,170 $ 84,999 $ 75,717