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Derivative Instruments and Hedging Activities - Narrative (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Derivative [Line Items] |  |  |
Net unrealized gains (losses) arising during the period | $ (57,056,000) | $ 10,000,000 |
Unrealized gain, after tax | (43,277,000) | 7,566,000 |
Pre-tax income (loss) | (5,600,000) | (5,400,000) |
Cash flow hedge loss to be reclassified | 116,000,000 |  |
Cash flow hedge termination loss | 20,000,000 |  |
Reclaim cash collateral | 46,900,000 |  | $ 69,700,000
Obligation to return cash collateral | 5,700,000 |  | $ 5,700,000
Cash Flow Hedges |  |  |
Derivative [Line Items] |  |  |
Net unrealized gains (losses) arising during the period | 0 | 0 |
Unrealized gain, after tax | $ 0 | $ 0 |

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