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3. Foreign Exchange Forward Contracts (Details) $ in Millions | 9 Months Ended
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Sep. 30, 2019 USD ($)
Forward foreign exchange contract to sell foreign currency [Member] |
Derivatives, Fair Value [Line Items] |
Derivative, Notional Amount | $ 37.6
Gain (Loss) on Foreign Currency Derivative Instruments not Designated as Hedging Instruments | 0.0
Forward foreign exchange contract to purchase foreign currency [Member] |
Derivatives, Fair Value [Line Items] |
Derivative, Notional Amount | 232.5
Gain (Loss) on Foreign Currency Derivative Instruments not Designated as Hedging Instruments | $ (0.2)

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