v3.22.2.2
Banking Facilities and Debt (Details)
$ in Millions
9 Months Ended
May 07, 2015
USD ($)
Sep. 30, 2022
USD ($)
May 02, 2019
USD ($)
Banking facilities and other debt      
Total Debt   $ 0.0  
Maximum      
Banking facilities and other debt      
Pro forma Cash Flow Leverage Ratio to be maintained to purchase, redeem or otherwise acquire shares of common stock   3.00  
Cash flow leverage ratio 3.50    
Revolving Facility      
Banking facilities and other debt      
Maximum borrowing capacity     $ 75.0
Accordion feature period 4 years    
Maximum borrowing capacity accordion feature $ 50.0    
Letters of credit outstanding   $ 0.3  
Revolving Facility | Minimum      
Banking facilities and other debt      
Commitment fee (as a percent) 0.20%    
Revolving Facility | Minimum | LIBOR      
Banking facilities and other debt      
Interest rate margin (as a percent) 1.00%    
Revolving Facility | Minimum | Lender's prime rate      
Banking facilities and other debt      
Interest rate margin (as a percent) 0.00%    
Revolving Facility | Maximum      
Banking facilities and other debt      
Commitment fee (as a percent) 0.35%    
Revolving Facility | Maximum | LIBOR      
Banking facilities and other debt      
Interest rate margin (as a percent) 2.00%    
Revolving Facility | Maximum | Lender's prime rate      
Banking facilities and other debt      
Interest rate margin (as a percent) 1.00%    
Letter of Credit      
Banking facilities and other debt      
Maximum borrowing capacity   $ 10.0