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Fair Value Measurements (Tables) | 12 Months Ended
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Dec. 31, 2013
Fair Value Measurements |
Fair value measurements of financial assets and liabilities | The financial assets and liabilities carried at fair value on a recurring basis at December 31, 2013 are as follows (in thousands):
Financial assets and liabilities |  | Fair Value |  | Level 2 |  | Level 3 |
--- | --- | --- | --- | --- | --- | --- | ---
Interest-rate swap asset(1) |  | $ | 2,325 |  | $ | 2,325 |  | $ | — |
Interest-rate swap liabilities(1) |  |  | (8,384 | ) |  | (8,384 | ) |  | — |
Currency swap liabilities(1) |  |  | (2,756 | ) |  | (2,756 | ) |  | — |
Warrants(1) |  |  | 114 |  |  | — |  |  | 114 |
|  | $ | (8,701 | ) | $ | (8,815 | ) | $ | 114 |
(1) Interest rate and currency swaps as well as common stock warrant fair values are determined based on observable and unobservable market assumptions utilizing standardized derivative pricing models.

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19190-110258 + Details
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