Significant Accounting Policies - Derivative Instruments Measured at Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Derivative Liability, Notional Amount	$ 84,968	$ 75,153
Derivative Liability, Fair Value	(470)	(3,628)
Other Current Assets
Derivative [Line Items]
Derivative Liability, Notional Amount		29,162
Derivative Asset, Notional Amount	26,995
Derivative Liability, Fair Value		$ (18)
Derivative Asset, Fair Value	$ 5

Nominal or face amount used to calculate payments on the derivative asset.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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.

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Nominal or face amount used to calculate payments on the derivative liability.

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No definition available.

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