Income Taxes - Schedule of Components of Income Tax Expense (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Components      
United States $ 37,276 $ 33,274 $ 36,377
Foreign (89) 157 514
Income from operations before income taxes 37,187 33,431 36,891
Current income tax provision      
United States-Federal 15,106 10,549 2,385
United States-State and local 311 401 29
Foreign 371 910 382
Total current income tax provision 15,788 11,860 2,796
Deferred income tax provision (benefit)      
United States-Federal (1,733) (9,350) 10,385
United States-State and local (278) (42) 898
Foreign (245) (10) 0
Total deferred income tax provision (benefit) (2,256) (9,402) 11,283
Total income tax expense $ 13,532 $ 2,458 $ 14,079
Effective income tax rate 36.40% 7.40% 38.20%