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Risk Management and Derivatives - Narrative (Details) $ in Millions | 9 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2021 USD ($) d | Dec. 31, 2020 USD ($) d | Sep. 30, 2020 USD ($) d
Derivative [Line Items] |  |  |
Minimum maturity | 1 month |  |
Maximum maturity | 24 months |  |
Interest rate swaps |  |  |
Derivative [Line Items] |  |  |
Number of derivative contracts outstanding | d | 0 | 0 | 0
Not Designated as Hedging Instrument | Foreign currency contracts |  |  |
Derivative [Line Items] |  |  |
Notional amount | $ 431.1 | $ 313.1 | $ 262.9
Cash Flow Hedges | Foreign currency contracts |  |  |
Derivative [Line Items] |  |  |
Notional amount | $ 739.1 | $ 812.5 | $ 301.2

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