Income Taxes (Unrecorded Deferred Income Taxes On Undistributed Earnings Of Foreign Subsidiaries) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($)
Income Taxes [Abstract]
Foreign Earnings Repatriated	$ 23,000
Deferred Tax Liabilities, Undistributed Foreign Earnings	7,932
Undistributed Earnings of Foreign Subsidiaries	$ 34,841