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Debt - Interest Rate Swaps (Details) $ in Thousands | Sep. 30, 2018 USD ($) item | Dec. 31, 2017 USD ($)
--- | --- | ---
Not designated as a hedge |  |
Debt and Credit Arrangements |  |
Number of derivatives held | item | 0 |
Interest rate swap | Other current and long-term assets |  |
Debt and Credit Arrangements |  |
Derivatives designated as hedging instruments, fair value | $ | $ 12,163 | $ 651

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- Definition Fair value of all asset derivatives designated as cash flow hedging instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959 + Details
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Balance Type: | debit
Period Type: | instant

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- Definition Number of interest rate derivative instruments held by the entity at the reporting date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959 + Details
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- Details
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- Details
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