Income Taxes - Schedule of Components of Income Tax Expense (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Income Tax Disclosure [Abstract]      
United States $ 36,377 $ 132,655 $ 107,787
Foreign 514 (1,222) 2,609
Income from continuing operations before income taxes 36,891 131,433 110,396
Current income tax provision      
United States - Federal 2,385 62,102 42,093
United States - state and local 29 1,190 611
Foreign 382 457 839
Total current income tax provision 2,796 63,749 43,543
Deferred income tax provision      
United States - Federal 10,385 (16,450) (2,211)
United States - state and local 898 (258) (5,601)
Total deferred income tax provision 11,283 (16,708) (7,812)
Total income tax expense $ 14,079 $ 47,041 $ 35,731
Effective tax rate 38.20% 35.90% 31.80%