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Other Liabilities (Details) - USD ($) $ in Thousands | Jun. 30, 2015 | Dec. 31, 2014
--- | --- | ---
Other Liabilities [Line Items] |  |
Share-based awards liability | $ 0 | $ 1,065
Other liabilities | 12,327 | 13,802
Pension plan |  |
Other Liabilities [Line Items] |  |
Pension and supplemental executive retirement plan liability | 2,980 | 3,079
SERP |  |
Other Liabilities [Line Items] |  |
Pension and supplemental executive retirement plan liability | 7,519 | 7,431
Level 2 | Interest Rate Swap | Other Liabilities |  |
Other Liabilities [Line Items] |  |
Interest rate swap liability | $ 1,828 | $ 2,227

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