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Derivative Instruments (Details) - Not Designated as Hedging Instrument - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Interest rate derivatives - caps      
Derivative [Line Items]      
Notional amount (in thousands) $ 860,500   $ 882,500
Aggregate principal balance on corresponding mortgage loans (in thousands) $ 859,500   $ 857,000
Interest rate derivatives - caps | Minimum      
Derivative [Line Items]      
Strike rate 2.00%   0.75%
Interest rate derivatives - caps | Maximum      
Derivative [Line Items]      
Strike rate 4.00%   4.00%
Interest rate derivatives - caps      
Derivative [Line Items]      
Notional amount (in thousands) $ 556,500 $ 679,000  
Total cost of interest rate caps (in thousands) $ 1,145 $ 79  
Interest rate derivatives - caps | Minimum      
Derivative [Line Items]      
Strike rate 3.50% 0.75%  
Interest rate derivatives - caps | Maximum      
Derivative [Line Items]      
Strike rate 4.00% 4.00%