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Consolidated Statements Of Comprehensive Income (Parenthetical) - USD ($) | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Consolidated Statements Of Comprehensive Income [Abstract] |  |  |
Net changes in fair value of cash flow hedges, taxes | $ (856,000) | $ (47,000) | $ (649,000)
Actuarial gain (loss) on pension obligations, tax | 200,000 | (4,000) | (81,000)
Amount reclassified from accumulated other comprehensive income (loss) to interest expense in the income statement | $ 0 | $ 0 |
Amount reclassified from accumulated other comprehensive income (loss) to interest expense in the income statement |  |  | $ 3,126,000

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- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624177-113959 + Details
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