Derivative Instruments and Hedging Activities - Schedule of Derivative Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Total derivative assets	$ 7,143	$ 6,510
Total derivative liabilities	0	0
Interest rate caps
Derivatives, Fair Value [Line Items]
Total derivative assets	7,123	6,510
Options
Derivatives, Fair Value [Line Items]
Total derivative assets	20
Interest rate swaps
Derivatives, Fair Value [Line Items]
Total derivative assets	0	0
Total derivative liabilities	0	0
U.S. Treasury futures
Derivatives, Fair Value [Line Items]
Total derivative assets	0
Total derivative liabilities	0
Credit default swaps
Derivatives, Fair Value [Line Items]
Total derivative liabilities	0
Other assets
Derivatives, Fair Value [Line Items]
Total derivative assets	7,143	6,510
Other assets | Interest rate caps
Derivatives, Fair Value [Line Items]
Total derivative assets	7,123	6,510
Other assets | Options
Derivatives, Fair Value [Line Items]
Total derivative assets	20	0
Other assets | Interest rate swaps
Derivatives, Fair Value [Line Items]
Total derivative assets	0	0
Other assets | U.S. Treasury futures
Derivatives, Fair Value [Line Items]
Total derivative assets	0	0
Other liabilities | Credit default swaps
Derivatives, Fair Value [Line Items]
Total derivative liabilities	$ 0	$ 0