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Fair-Value Measurements (Schedule of Fair Value of Financial Assets and Liabilities) (Details) - USD ($) $ in Thousands | Jun. 30, 2016 | Dec. 31, 2015
--- | --- | ---
Interest Rate Current Swap [Member] |  |  |  |
Derivative liability: |  |  |  |
Liability for fixed rate leg | $ 17,800 |  | $ 9,800 |
Receivable for floating rate leg | 13,400 |  | 7,400 |
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets (Level 1) [Member] |  |  |  |
Assets: |  |  |  |
Cash equivalents | 16,366 |  | 5,189 |
Assets held for sale |  |  |  |
Foreign currency options |  |  |  |
Common stock of unaffiliated foreign public company | 744 | [1] | 819 |
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 | 366 |  |  |
Common stock of unaffiliated foreign public company |  |  |  |
Liabilities: |  |  |  |
Interest rate swaps | 4,336 | [2] | (2,400) | [3]
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |  |  |
Assets: |  |  |  |
Cash equivalents |  |  |  |
Assets held for sale | 5,078 |  | 4,988 |
Foreign currency options |  |  |  |
Common stock of unaffiliated foreign public company |  |  |  |
Liabilities: |  |  |  |
Interest rate swaps |  |  |  |
[1] | Original cost basis $0.5 million
[2] | Net of $13.4 million receivable floating leg and $17.8 million liability fixed leg
[3] | Net of $7.4 million receivable floating leg and $9.8 million liability fixed leg

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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=65884222&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66010992&loc=d3e26610-111562 + Details
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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 + Details
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