Fair-Value Measurements (Schedule of Fair Value of Financial Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2015		Dec. 31, 2014
Derivative asset:
Common stock of foreign public company, original cost	$ 500
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets (Level 1) [Member]
Assets:
Cash equivalents	$ 5,189		$ 14,096
Assets held for sale
Foreign currency options			$ 69
Common stock of foreign public company	$ 819	[1]	$ 701
Liabilities:
Interest rate swaps
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets:
Cash equivalents
Assets held for sale
Foreign currency options
Common stock of foreign public company
Liabilities:
Interest rate swaps	$ (2,400)	[2]	$ (1,411)	[3]
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets:
Cash equivalents
Assets held for sale	$ 4,988
Foreign currency options
Common stock of foreign public company
Liabilities:
Interest rate swaps
Interest Rate Swap [Member]
Derivative liability:
Liability for fixed rate leg	$ 7,400		$ 4,300
Receivable for floating rate leg	$ 9,800		$ 5,700

[1] Original cost basis $0.5 million.

[2] Net of $7.4 million receivable floating leg and $9.8 million liability fixed leg

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