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Derivatives - Interest Rate Swaps (Details) - Derivatives Designated as Hedging Instruments
$ in Millions
Jun. 30, 2021
USD ($)
Interest Rate Swaps  
Notional Disclosures  
Deferred pre-tax losses to be reclassified during next 12 months $ 3.9
Weighted average effective fixed interest rate on interest rate swaps (as a percent) 1.80%
Interest rate swap, expiring March 2022  
Notional Disclosures  
Notional amount of interest rate swaps $ 300.0