Income Taxes (Components of Income Tax Provision) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current:
Federal	$ (3,529)	$ 21,468	$ 15,225
State	283	684	3,322
Foreign	3,520	1,627	1,432
Total current	274	23,779	19,979
Deferred:
Federal	(7,756)	2,573	1,336
State	(173)	(1,071)	(543)
Foreign	1	0	0
Total deferred	(7,928)	1,502	793
Income tax (benefit) expense	$ (7,654)	$ 25,281	$ 20,772