Derivative Instruments and Hedging Activities - Schedule of Reconciliation of Gross Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Derivative assets
Gross Amount of Recognized Assets (Liabilities)	$ 32,588	$ 19,604
Gross Amounts Offset in Balance Sheets	(8,356)	(13,094)
Variation Margin	(20,404)	0
Net Amounts of Assets (Liabilities) Presented in Balance Sheets	3,828	6,510
Derivative liabilities
Gross Amount of Recognized Assets (Liabilities)	(17,191)	(40,541)
Gross Amounts Offset in Balance Sheets	8,356	13,094
Variation Margin	8,835	27,447
Net Amounts of Assets (Liabilities) Presented in Balance Sheets	0	0
Interest rate caps
Derivative assets
Gross Amount of Recognized Assets (Liabilities)	3,049	6,510
Gross Amounts Offset in Balance Sheets	0	0
Variation Margin	0	0
Net Amounts of Assets (Liabilities) Presented in Balance Sheets	3,049	6,510
Options
Derivative assets
Gross Amount of Recognized Assets (Liabilities)	779
Gross Amounts Offset in Balance Sheets	0
Variation Margin	0
Net Amounts of Assets (Liabilities) Presented in Balance Sheets	779
Interest rate swaps
Derivative assets
Gross Amount of Recognized Assets (Liabilities)	28,760	13,094
Gross Amounts Offset in Balance Sheets	(8,356)	(13,094)
Variation Margin	(20,404)	0
Net Amounts of Assets (Liabilities) Presented in Balance Sheets	0	0
Derivative liabilities
Gross Amount of Recognized Assets (Liabilities)	(8,356)	(40,541)
Gross Amounts Offset in Balance Sheets	8,356	13,094
Variation Margin	0	27,447
Net Amounts of Assets (Liabilities) Presented in Balance Sheets	0	$ 0
Credit default swaps
Derivative liabilities
Gross Amount of Recognized Assets (Liabilities)	(8,570)
Gross Amounts Offset in Balance Sheets	0
Variation Margin	8,570
Net Amounts of Assets (Liabilities) Presented in Balance Sheets	0
U.S. Treasury futures
Derivative liabilities
Gross Amount of Recognized Assets (Liabilities)	(265)
Gross Amounts Offset in Balance Sheets	0
Variation Margin	265
Net Amounts of Assets (Liabilities) Presented in Balance Sheets	$ 0

Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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