Derivative Financial Instruments - Fair Value (Details) - Derivatives not designated as hedging instruments: - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Foreign currency forward contracts \| Other current assets
Derivative Asset, Fair Value, Amount Not Offset Against Collateral
Foreign currency forward contracts	$ 1,372	$ 8,234
Foreign currency forward contracts \| Accrued expenses and other current liabilities
Derivative Asset, Fair Value, Amount Not Offset Against Collateral
Fair value, gross liability	4,068	1,161
Interest rate cap contracts \| Other assets
Derivative Asset, Fair Value, Amount Not Offset Against Collateral
Foreign currency forward contracts	$ 6	$ 0

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313

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