Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Abstract]
Capital loss carry-forwards	$ 8,604
Foreign pre-tax earnings	64,139	$ 42,221	$ 56,683
Undistributed earnings	393,000
Unrecognized deferred tax liability related to temporary differences	3,600
Earnings retained by subsidiaries and equity accounted investments	411,000	380,000	415,000
Gross unrecognized tax benefits	15,904	16,131	$ 17,919
Unrecognized tax benefits that would impact effective tax rate	8,419,000
Accrued interest and penalties	$ 2,102,000	$ 1,864,000