Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current:
Federal	$ 11,322	$ (10,569)	$ 9,379
State and local	3,587	3,100	3,134
Foreign	738	174	353
Total current	15,647	(7,295)	12,866
Deferred
Federal	56,431	63,577	33,842
State and local	5,221	8,804	5,725
Foreign	(8)	(12)	7
Total deferred	61,644	72,369	39,574
Total income tax expense	$ 77,291	$ 65,074	$ 52,440