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Summary of Significant Accounting Policies Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Other comprehensive income [Abstract] |  |  |  |  |  |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Reclassification to Earnings, before Tax | $ 1,777 |  | $ (3,865) |  | $ 20,707 |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Reclassification to Earnings, Tax | (662) |  | 1,601 |  | (7,710) |
Reclassification to earnings | 1,115 |  | (2,264) |  | 12,997 |
Other Comprehensive Income (Loss), Minimum Pension Liability Net Adjustment, before Tax | 4,005 |  | (3,909) |  | (2,779) |
Other Comprehensive Income (Loss), Minimum Pension Liability, Tax | 1,522 |  | (1,439) |  | (984) |
Pension liability adjustment | $ 2,483 | [1] | $ (2,470) | [1] | $ (1,795) | [1]
[1] | mounts are reclassified to General and administrative expense on the Company's consolidated statements of operations. The net of tax effect of the reclassification was approximately $768,000 in 2013. The accompan

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- Definition Net of tax and reclassification adjustments amount of the increase (decrease) in accumulated other comprehensive income (loss) related to pension and other postretirement benefit plans, attributable to the parent entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 30 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569643-111683 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684 + Details
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