Fair-Value Measurements (Schedule of Fair Value of Financial Assets and Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2015		Dec. 31, 2014
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets (Level 1) [Member]
Assets:
Cash equivalents	$ 16,043		$ 14,096
Foreign currency instruments	104		69
Common stock of foreign public company	$ 817		$ 701
Liabilities:
Interest rate swap
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets:
Cash equivalents
Foreign currency instruments
Common stock of foreign public company
Liabilities:
Interest rate swap	$ (3,765)	[1]	$ (1,411)	[2]
Fair Value, Measurements, Recurring [Member] | Unobservable Inputs (Level 3) [Member]
Assets:
Cash equivalents
Asset held for sale	$ 5,112		$ 9,102
Foreign currency instruments
Common stock of foreign public company
Interest Rate Swap [Member]
Derivative liability:
Liability for fixed rate leg	$ 10,300		$ 5,700
Receivable for floating rate leg	$ 6,500		$ 4,300

[1] Net of $6.5 million receivable floating leg and $10.3 million liability fixed leg

[2] Net of $4.3 million receivable floating leg and $5.7 million liability fixed leg