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Derivative Instruments - Narrative (Details) - USD ($)
Mar. 31, 2021
Dec. 31, 2020
Interest rate contracts    
Derivative [Line Items]    
Cash collateral posted $ 65,900,000  
Forward foreign exchange contracts    
Derivative [Line Items]    
Forward foreign exchange contracts with credit risk-related contingent features, notional value 26,800,000 $ 35,000,000.0
Additional collateral required, if TCF was rated less than BB- by Standard and Poor's 535,000 699,000
Forward foreign exchange contracts with credit risk-related contingent features, net liability amount 0 $ 0
Cash collateral posted 340,000  
Cash collateral received $ 440,000