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Derivative Instruments - Additional Information (Details) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Feb. 21, 2020
Oct. 31, 2019
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Sep. 30, 2020
Feb. 29, 2020
Interest Rate Swap Agreement              
Derivative Instruments Gain Loss [Line Items]              
Notional amount   $ 140,000,000.0       $ 65,000,000.0 $ 30,000,000.0
Variable-rate term loan       $ 205,000,000.0      
Regions Bank | Interest Rate Swap Agreement              
Derivative Instruments Gain Loss [Line Items]              
Notional amount   140,000,000.0          
Variable-rate term loan   $ 140,000,000.0          
Term of agreement   5 years          
Pre-tax gain (loss) reclassified from accumulated other comprehensive income (loss) into interest expense     $ 100,000   $ 200,000    
Regions Bank | Swap Transaction              
Derivative Instruments Gain Loss [Line Items]              
Notional amount $ 30,000,000.0         65,000,000.0  
Swap transaction inception date Mar. 31, 2020            
Swap transaction termination date Feb. 10, 2025            
Regions Bank | Swap Transaction | Other Loss              
Derivative Instruments Gain Loss [Line Items]              
Derivative, Notional Amount       $ 9,300,000      
Regions Bank | Swap Transaction | LIBOR              
Derivative Instruments Gain Loss [Line Items]              
Notional amount $ 30,000,000.0         $ 65,000,000.0