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Derivatives - Foreign Currency Derivative Contracts Outstanding (Details) - Not Designated as Hedging Instrument - Foreign currency contracts $ in Thousands | Dec. 31, 2019 USD ($) $ / £ $ / kr $ / € $ / $
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Canadian dollar |
Derivative [Line Items] |
Notional amount | $ 948
Contractual exchange rate | $ / $ | 1.3182
Euro |
Derivative [Line Items] |
Notional amount | $ 9,279
Contractual exchange rate | $ / € | 1.1180
Norwegian krone |
Derivative [Line Items] |
Notional amount | $ 11,027
Contractual exchange rate | $ / kr | 9.0688
Pound sterling |
Derivative [Line Items] |
Notional amount | $ 16,057
Contractual exchange rate | $ / £ | 1.3381

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- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 + Details
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