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Derivative Instruments and Hedging Activities - Forward Currency Contracts (Details) - Not Designated as Hedging Instrument - Foreign Exchange Currency Forward Contracts € in Thousands | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2018 EUR (€)
--- | --- | --- | ---
Derivative [Line Items] |  |  |
Notional amount | $ 0 |  |
Purchase |  |  |
Derivative [Line Items] |  |  |
Notional amount | € |  |  | € 29,000
Sell |  |  |
Derivative [Line Items] |  |  |
Notional amount |  | $ 33,374,000 |
Prepaid expenses and other |  |  |
Derivative [Line Items] |  |  |
Derivative assets |  | $ 93,000 |

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