Income Taxes (Jurisdictional Components of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Income Taxes (Jurisdictional components of deferred taxes)
Gross, asset	$ 49,412	$ 7,838
Valuation allowance, asset	(1,994)	(21,038)
Net deferred income tax assets (liabilities)	47,418
Deferred Tax Liabilities, Net		(13,200)
U.S. Federal [Member]
Income Taxes (Jurisdictional components of deferred taxes)
Gross, asset	48,273	6,557
Valuation allowance, asset	0	(3,000)
Net deferred income tax assets (liabilities)	48,273	3,557
State and Local Jurisdiction [Member]
Income Taxes (Jurisdictional components of deferred taxes)
Gross, asset	1,203	462
Valuation allowance, asset	0	(16,208)
Net deferred income tax assets (liabilities)	1,203
Deferred Tax Liabilities, Net		(15,746)
Foreign [Member]
Income Taxes (Jurisdictional components of deferred taxes)
Gross, asset	(64)	819
Valuation allowance, asset	(1,994)	(1,830)
Deferred Tax Liabilities, Net	$ (2,058)	$ (1,011)