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Long-Term Debt And Liquidity Long-Term Debt and Liquidity Short-term Debt (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Debt Instrument [Line Items] |  |
Long-term Debt, Current Maturities | $ 188,104 us-gaap_LongTermDebtCurrent | $ 1,161 us-gaap_LongTermDebtCurrent
Senior Subordinated Notes [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Current Maturities | 187,973 us-gaap_LongTermDebtCurrent / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorSubordinatedNotesMember | 0 us-gaap_LongTermDebtCurrent / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorSubordinatedNotesMember
Other Debt [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Current Maturities | $ 131 us-gaap_LongTermDebtCurrent / us-gaap_LongtermDebtTypeAxis = us-gaap_OtherDebtSecuritiesMember | $ 1,161 us-gaap_LongTermDebtCurrent / us-gaap_LongtermDebtTypeAxis = us-gaap_OtherDebtSecuritiesMember

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- Definition Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + 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 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Article 5 + Details
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