Derivatives Fair Value Derivatives, Balance Sheet Location (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Derivatives, Fair Value [Line Items]
Foreign Currency Cash Flow Hedge Asset at Fair Value	$ 648
Foreign Currency Cash Flow Hedge Liability at Fair Value	68
Cash Flow Hedge \| Interest Rate Swap \| Other Assets [Member]
Derivatives, Fair Value [Line Items]
Foreign Currency Cash Flow Hedge Liability at Fair Value	0	$ 369
Cash Flow Hedge \| Interest Rate Swap \| Designated as Hedging Instrument \| Other Current Assets
Derivatives, Fair Value [Line Items]
Foreign Currency Cash Flow Hedge Liability at Fair Value	82	576
Cash Flow Hedge \| Interest Rate Swap \| Designated as Hedging Instrument \| Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Interest rate swaps reported in Other long-term obligations	(78)	0
Cash Flow Hedge \| Foreign currency hedges \| Designated as Hedging Instrument \| Other Current Assets
Derivatives, Fair Value [Line Items]
Foreign Currency Cash Flow Hedge Liability at Fair Value	$ 580	$ 393

Fair value, after the 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 not subject to a master netting arrangement and not elected to be offset.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Fair value as of the balance sheet date of all foreign currency derivative assets designated as cash flow hedging instruments.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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