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Fair Value Measurements Fair Value Nonrecurring Basis (Details) $ in Thousands | Dec. 31, 2017 USD ($)
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Assets Held-for-sale, Long Lived, Fair Value Disclosure | $ 12,489
Fair Value, Inputs, Level 1 [Member] |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Assets Held-for-sale, Long Lived, Fair Value Disclosure | 0
Fair Value, Inputs, Level 2 [Member] |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Assets Held-for-sale, Long Lived, Fair Value Disclosure | 0
Fair Value, Inputs, Level 3 [Member] |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Assets Held-for-sale, Long Lived, Fair Value Disclosure | $ 12,489

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- Definition Fair value portion of assets classified as held for sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258 + Details
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