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Change in Accounting Principle (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Other assets | $ 12,685 | $ 10,543
Long-term debt | 490,160 | 488,250
Previous Accounting Method [Member] |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Other assets | 16,211 | 14,736
Long-term debt | 493,686 | 492,443
Effect of Change in Accounting Principle [Member] |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Other assets | (3,526) | (4,193)
Long-term debt | $ (3,526) | $ (4,193)

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- Definition Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section H + Details
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