XML 60 R49.htm IDEA: XBRL DOCUMENT v3.23.1
Debt and Credit Facilities - Narrative (Details) - Unsecured Debt
Dec. 20, 2022
USD ($)
Jun. 30, 2021
USD ($)
Mar. 31, 2023
USD ($)
agreement
Rate
Dec. 31, 2022
USD ($)
Revolving Credit Facility | 2022 Credit Agreement        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity $ 1,075,000,000.000      
Borrowings outstanding     $ 691,300,000 $ 693,800,000
Line of credit borrowings outstanding     600,000,000  
Interest rate swap facility, amount     $ 150,000,000  
Interest rate swap facility, fixed interest     2.88%  
Number of interest rate swap agreements | agreement     2  
Revolving Credit Facility | 2022 Credit Agreement | Minimum        
Line of Credit Facility [Line Items]        
Unused capacity commitment fee, percentage 0.125%      
Revolving Credit Facility | 2022 Credit Agreement | Maximum        
Line of Credit Facility [Line Items]        
Unused capacity commitment fee, percentage 0.25%      
Revolving Credit Facility | 2022 Credit Agreement | Federal Funds Rate        
Line of Credit Facility [Line Items]        
Debt instrument, basis spread on variable rate 0.50%      
Revolving Credit Facility | 2022 Credit Agreement | One-month Term SOFR        
Line of Credit Facility [Line Items]        
Debt instrument, basis spread on variable rate 1.10%      
Revolving Credit Facility | 2022 Credit Agreement | One-month Term SOFR | Minimum        
Line of Credit Facility [Line Items]        
Debt instrument, basis spread on variable rate 0.125%      
Revolving Credit Facility | 2022 Credit Agreement | One-month Term SOFR | Maximum        
Line of Credit Facility [Line Items]        
Debt instrument, basis spread on variable rate 0.75%      
Revolving Credit Facility | 2022 Credit Agreement | SOFR        
Line of Credit Facility [Line Items]        
Debt instrument, basis spread on variable rate 0.10%      
Revolving Credit Facility | 2022 Credit Agreement | SOFR | Minimum        
Line of Credit Facility [Line Items]        
Debt instrument, basis spread on variable rate 1.125%      
Revolving Credit Facility | 2022 Credit Agreement | SOFR | Maximum        
Line of Credit Facility [Line Items]        
Debt instrument, basis spread on variable rate 1.75%      
Revolving Credit Facility | 2022 Credit Agreement | Base Rate | Minimum        
Line of Credit Facility [Line Items]        
Debt instrument, basis spread on variable rate 0.125%      
Revolving Credit Facility | 2022 Credit Agreement | Base Rate | Maximum        
Line of Credit Facility [Line Items]        
Debt instrument, basis spread on variable rate 0.75%      
Revolving Credit Facility | Variable Rate Revolving Credit Facility        
Line of Credit Facility [Line Items]        
Line of credit borrowings outstanding     $ 450,000,000  
Line of credit facility, interest rate     6.11%  
Letter of Credit | 2022 Credit Agreement        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity $ 100,000,000      
Standby Letters of Credit | 2022 Credit Agreement        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity     $ 60,400,000  
Standby Letters of Credit | 2022 Credit Agreement | Minimum        
Line of Credit Facility [Line Items]        
Commission percentage 1.125%      
Standby Letters of Credit | 2022 Credit Agreement | Maximum        
Line of Credit Facility [Line Items]        
Commission percentage 1.75%      
Line of Credit | BMO Term Loan        
Line of Credit Facility [Line Items]        
Term loan face amount   $ 100,000,000    
Periodic payment, principal   $ 1,250,000    
Term loan interest rate | Rate     1.28%  
Term loan     $ 91,300,000 $ 93,800,000