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Derivative Instruments - Cash Flow Hedges of Interest Rate Swaps (Details) - Accrued and other liabilities - Cash Flow Hedging - Designated as Hedging Instrument - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Interest rate Swap Maturing 2029    
Derivative [Line Items]    
Interest Rate 3.14%  
Notional amount $ 57.9  
Fair value of interest rate swap liability $ (4.8) $ (0.2)
Interest Rate Swap Maturing 2023    
Derivative [Line Items]    
Interest Rate 3.35%  
Notional amount $ 50.0  
Fair value of interest rate swap liability $ (1.3)