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Derivatives - Gains (Losses) in Cash Flow Hedge and Net Investment Hedge (Details) - Derivative instruments designated as hedging instruments - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Interest rate contracts | Cash Flow Hedging |  |  |  |
Derivative [Line Items] |  |  |  |
Losses recognized in AOCI: | $ (62,715) | $ (48,325) | $ (129,329) | $ (88,771)
Gains (losses) reclassified from AOCI into earnings: | (24,059) | (1,619) | (54,955) | 1,601
Interest rate contracts | Cash Flow Hedging | Interest expense (for cash flow hedges on borrowings) |  |  |  |
Derivative [Line Items] |  |  |  |
Gains (losses) reclassified from AOCI into earnings: | 0 | 1,251 | 696 | 1,385
Interest rate contracts | Cash Flow Hedging | Interest and dividend income (for cash flow hedges on loans) |  |  |  |
Derivative [Line Items] |  |  |  |
Gains (losses) reclassified from AOCI into earnings: | (24,059) | (2,870) | (57,265) | 216
Interest rate contracts | Cash Flow Hedging | Noninterest income |  |  |  |
Derivative [Line Items] |  |  |  |
Gains (losses) reclassified from AOCI into earnings: | 0 | 0 | 1,614 | 0
Foreign exchange contracts | Net Investment Hedging |  |  |  |
Derivative [Line Items] |  |  |  |
Gains recognized in AOCI | $ 63 | $ 4,343 | $ 2,886 | $ 6,027

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