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Acquisitions and Divestitures Divestitures (Schedule of Selected Financial Information) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Discontinued Operations and Disposal Groups [Abstract] |  |  |  |  |  |  |
Disposal Group, Including Discontinued Operation, Revenue |  |  |  |  |  | $ 593,733 us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue | $ 702,695 us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue
Disposal Group, Including Discontinued Operation, Operating Expense |  |  |  |  |  | 592,505 us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense | 703,715 us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense
Disposal Group, Including Discontinued Operation, Operating Income (Loss) |  |  |  |  |  | 1,228 us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss | (1,020)us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss
Disposal Group, Including Discontinued Operation, Interest Income |  |  |  |  |  | 2 us-gaap_DisposalGroupIncludingDiscontinuedOperationInterestIncome | 2 us-gaap_DisposalGroupIncludingDiscontinuedOperationInterestIncome
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax |  |  |  |  |  | 1,230 us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax | (1,018)us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax |  |  |  |  |  | 875 us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax | 0 us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
Income (loss) from discontinued operations | $ 1,164 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | $ 508 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | $ 290 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | $ 143 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | $ 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | $ 2,105 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | $ (1,018)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax

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- Definition Amount of gain (loss), after tax expense or benefit and not previously recognized, resulting from the sale of a business component. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
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- Definition Overall income (loss) from a disposal group that is classified as a component of the entity, before income tax, reported as a separate component of income before extraordinary items. Includes the following (before income tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.12) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 13 -Article 7 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 05 -Paragraph 15 -Article 3 + Details
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- Definition Amount of interest income attributable to disposal group. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
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- Definition Amount of operating income or loss attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
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- Definition Amount of sales or other form of revenues attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
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