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Derivative and Nonderivative Hedging Instrument Fair Value Disclosure (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Asset Derivatives [Abstract] |  |
Gross Amounts of Recognized Assets Presented in the Consolidated Balance Sheets | $ 4,726 | $ 6,525
Designated as Hedging Instrument [Member] | Other Current Liabilities [Member] |  |
Liability Derivatives [Abstract] |  |
Foreign exchange forward contracts | 671 | 0
Not Designated as Hedging Instrument [Member] | Other Current Assets [Member] |  |
Asset Derivatives [Abstract] |  |
Foreign currency derivative instruments not designated as hedging instruments, asset at fair value | 15 | 157
Not Designated as Hedging Instrument [Member] | Other Current Liabilities [Member] |  |
Liability Derivatives [Abstract] |  |
Foreign exchange forward contracts | 70 | 337
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Other Current Assets [Member] |  |
Asset Derivatives [Abstract] |  |
Interest rate derivative assets, at fair value | 692 | 1,866
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Other Noncurrent Assets [Member] |  |
Asset Derivatives [Abstract] |  |
Interest rate derivative assets, at fair value | 0 | 746
Interest Rate Cap [Member] | Designated as Hedging Instrument [Member] | Other Current Assets [Member] |  |
Asset Derivatives [Abstract] |  |
Interest rate derivative assets, at fair value | 130 | 535
Interest Rate Cap [Member] | Designated as Hedging Instrument [Member] | Other Noncurrent Assets [Member] |  |
Asset Derivatives [Abstract] |  |
Interest rate derivative assets, at fair value | 0 | 251
Currency Swap [Member] | Designated as Hedging Instrument [Member] | Other Current Assets [Member] |  |
Asset Derivatives [Abstract] |  |
Foreign currency fair value hedge asset at fair value | 1,287 | 1,631
Currency Swap [Member] | Designated as Hedging Instrument [Member] | Other Noncurrent Assets [Member] |  |
Asset Derivatives [Abstract] |  |
Foreign currency fair value hedge asset at fair value | $ 1,931 | $ 1,339

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