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Debt - Senior Unsecured Credit Facility and Unsecured Term Loans (Details) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended
Feb. 04, 2022
Aug. 04, 2022
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Aug. 14, 2020
Line of Credit Facility [Line Items]                
Percent of unused portion line of credit facility triggering lower commitment fee (as a percent)         50.00%      
Senior unsecured credit facility     $ 200,000   $ 200,000   $ 90,000  
Minimum liquidity covenant $ 125,000              
Maximum annual preferred dividends               $ 25,000
Minimum                
Line of Credit Facility [Line Items]                
Line of credit facility, unused capacity, commitment fee (as a percent)         0.20%      
Maximum                
Line of Credit Facility [Line Items]                
Line of credit facility, unused capacity, commitment fee (as a percent)         0.30%      
Revolving Credit Facility | Line of Credit                
Line of Credit Facility [Line Items]                
Maximum borrowing capacity     400,000   $ 400,000      
Senior unsecured credit facility     200,000   200,000   90,000  
Interest and unused credit facility fees     1,800 $ 1,000 3,200 $ 1,700    
Interest incurred on the facility     3,900 $ 3,700 $ 7,500 $ 7,300    
Revolving Credit Facility | Line of Credit | Subsequent Event                
Line of Credit Facility [Line Items]                
Borrowings under facility repaid   $ 25,000            
Revolving Credit Facility | Line of Credit | LIBOR                
Line of Credit Facility [Line Items]                
Basis spread on variable rate         2.55%      
Revolving Credit Facility | Line of Credit | Minimum | LIBOR                
Line of Credit Facility [Line Items]                
Basis spread on variable rate         0.25%      
Unsecured Term Loan due July 2024 | Unsecured Term Loan                
Line of Credit Facility [Line Items]                
Principal balance     350,000   $ 350,000   350,000  
Unsecured Term Loan due July 2024 | Unsecured Term Loan | LIBOR                
Line of Credit Facility [Line Items]                
Basis spread on variable rate         2.40%      
Unsecured Term Loan Due October 2023 | Unsecured Term Loan                
Line of Credit Facility [Line Items]                
Principal balance     $ 50,000   $ 50,000   $ 50,000  
Unsecured Term Loan Due October 2023 | Unsecured Term Loan | LIBOR                
Line of Credit Facility [Line Items]                
Basis spread on variable rate         2.40%