Income Tax (Income Tax Expense (Benefit)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current:
Federal	$ 63	$ 181	$ 220
State and local	12	(42)	626
Foreign	1,727	2,804	2,143
Total current income tax expense	1,802	2,943	2,989
Deferred:
Federal	(387)	(4,248)	(6,640)
State and local	(56)	(487)	(1,483)
Foreign	(514)	27	(215)
Total deferred income tax benefit	(957)	(4,708)	(8,338)
Total income tax expense (benefit)	$ 845	$ (1,765)	$ (5,349)