Income Taxes (Provision (Benefit) for Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Federal income taxes:
Current	$ 3,437	$ 12,393	$ (26,841)
Deferred	(1,924)	(5,393)	(4,449)
Federal Income Tax Expense (Benefit), Continuing Operations, Total	1,513	7,000	(31,290)
State income taxes:
Current	683	4,302	2,294
Deferred	684	(1,422)	(1,221)
State and Local Income Tax Expense (Benefit), Continuing Operations, Total	1,367	2,880	1,073
Foreign:
Current	5,643	7,753	4,445
Deferred	(1,134)	(3,540)	(278)
Foreign Income Tax Expense (Benefit), Continuing Operations, Total	4,509	4,213	4,167
Total provision (benefit) for income taxes	$ 7,389	$ 14,093	$ (26,050)