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Debt and Credit Agreement (Details) - Line of Credit
Nov. 15, 2019
USD ($)
Jun. 30, 2022
USD ($)
Dec. 31, 2021
USD ($)
Sep. 22, 2020
Wells Fargo Securities, Citizens Bank and JP Morgan Chase Bank | Minimum        
Debt Instrument [Line Items]        
Commitment fee rate on undrawn commitments 0.15%      
Wells Fargo Securities, Citizens Bank and JP Morgan Chase Bank | Maximum        
Debt Instrument [Line Items]        
Commitment fee rate on undrawn commitments 0.30%      
Wells Fargo Securities, Citizens Bank and JP Morgan Chase Bank | LIBOR        
Debt Instrument [Line Items]        
Spread on variable interest rate 1.00%      
Wells Fargo Securities, Citizens Bank and JP Morgan Chase Bank | LIBOR | Minimum        
Debt Instrument [Line Items]        
Spread on variable interest rate 1.25%      
Wells Fargo Securities, Citizens Bank and JP Morgan Chase Bank | LIBOR | Maximum        
Debt Instrument [Line Items]        
Spread on variable interest rate 2.00%      
Wells Fargo Securities, Citizens Bank and JP Morgan Chase Bank | Federal Funds        
Debt Instrument [Line Items]        
Spread on variable interest rate 0.50%      
Wells Fargo Securities, Citizens Bank and JP Morgan Chase Bank | LIBOR Plus 1.00% | Minimum        
Debt Instrument [Line Items]        
Spread on variable interest rate 0.25%      
Wells Fargo Securities, Citizens Bank and JP Morgan Chase Bank | LIBOR Plus 1.00% | Maximum        
Debt Instrument [Line Items]        
Spread on variable interest rate 1.00%      
Revolving Credit Facility        
Debt Instrument [Line Items]        
Outstanding balance for revolving credit   $ 0 $ 0  
Revolving Credit Facility | Wells Fargo Securities, Citizens Bank and JP Morgan Chase Bank        
Debt Instrument [Line Items]        
Term of debt instrument 5 years      
Maximum borrowing capacity $ 500,000,000      
Revolving Credit Facility | Wells Fargo Securities, Citizens Bank and JP Morgan Chase Bank | Calendar Quarters Up To and Including March 31, 2021        
Debt Instrument [Line Items]        
Maximum secured net leverage ratio       3.50
Revolving Credit Facility | Wells Fargo Securities, Citizens Bank and JP Morgan Chase Bank | Calendar Quarters After March 31, 2021        
Debt Instrument [Line Items]        
Maximum secured net leverage ratio       3.00
Incremental Loan Facility | Wells Fargo Securities, Citizens Bank and JP Morgan Chase Bank        
Debt Instrument [Line Items]        
Maximum borrowing capacity 250,000,000      
Letter of Credit | Wells Fargo Securities, Citizens Bank and JP Morgan Chase Bank        
Debt Instrument [Line Items]        
Maximum borrowing capacity 15,000,000      
Swing Line Loan | Wells Fargo Securities, Citizens Bank and JP Morgan Chase Bank        
Debt Instrument [Line Items]        
Maximum borrowing capacity $ 25,000,000