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Derivative Instruments - Additional Information (Details) - Interest Rate Swap [Member] - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Derivative [Line Items]        
Derivative maturity date     Sep. 07, 2025  
Derivative rate received     one-month USD LIBOR  
Derivative rate paid, percent     2.54%  
Derivative Instrument, notional value $ 35.5   $ 35.5  
Derivative instrument gain (loss) under fair value $ 0.2 $ 0.1 $ 0.9 $ (1.6)