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Fair Value Measurements - Activity for Level 3 Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Dec. 31, 2023 | Mar. 31, 2023
Level 3 CMO [Roll Forward] |  |  |
Other Borrowings, Fair Value Disclosure | $ 123,824 | $ 123,116 |
Proceeds from borrowings | 300,000 |  | $ 10,371,337
Unrealized net holding (losses) gains on securities available-for-sale arising during the period | (18,208) | 161,900 | $ 67,971
Credit-Link Notes |  |  |
Level 3 CMO [Roll Forward] |  |  |
Other Borrowings, Fair Value Disclosure | 123,824 | 123,116 |
Level 3 |  |  |
Level 3 CMO [Roll Forward] |  |  |
Equity warrants, Balance, beginning of period | 3,689 |  |
Total included in earnings | 178 |  |
Total included in other comprehensive income | 0 |  |
Payments for Repurchase of Warrants | 0 |  |
Sales, Equity Warrants | 115 |  |
Equity warrants, Balance, end of period |  | 3,689 |
Warrant income (loss) | 272 |  |
Fair Value, Equity, Transfers to Level 1, Amount | 2 |  |
Fair Value, Assets, Level 3 to Level 2 Transfers, Amount | 0 |  |
Level 3 | Credit-Link Notes |  |  |
Level 3 CMO [Roll Forward] |  |  |
Total included in earnings | 348 |  |
Total included in other comprehensive income | 1,251 |  |
Proceeds from borrowings | 0 |  |
Repayments of borrowings | (891) |  |
Debt Securities Exercises and Settlements | 0 |  |
Fair Value, Equity, Transfers to Level 1, Amount | 0 |  |
Fair Value, Assets, Level 3 to Level 2 Transfers, Amount | 0 |  |
Level 3 | Corporate Debt Securities |  |  |
Level 3 CMO [Roll Forward] |  |  |
Total included in earnings | 0 |  |
Proceeds from borrowings | 0 |  |
Repayments of borrowings | 0 |  |
Debt Securities Exercises and Settlements | 0 |  |
Fair Value, Measurements, Recurring |  |  |
Level 3 CMO [Roll Forward] |  |  |
Equity warrants, Balance, beginning of period | 3,689 |  |
Equity warrants, Balance, end of period | 3,708 | 3,689 |
Fair Value, Measurements, Recurring | Level 3 |  |  |
Level 3 CMO [Roll Forward] |  |  |
Equity warrants, Balance, beginning of period | 3,689 |  |
Equity warrants, Balance, end of period | 3,708 | 3,689 |
Fair Value, Measurements, Recurring | Level 3 | Corporate Debt Securities |  |  |
Level 3 CMO [Roll Forward] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 2,100 | 40,249 |
Total included in other comprehensive income | 0 |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 40,249 |  |
Fair Value, Measurements, Nonrecurring |  |  |
Level 3 CMO [Roll Forward] |  |  |
Assets | 8,150 | 9,824 |
Fair Value, Measurements, Nonrecurring | Non Purchased Credit Impaired Loans and Leases |  |  |
Level 3 CMO [Roll Forward] |  |  |
Assets | 5,639 | 6,402 |
Fair Value, Measurements, Nonrecurring | Level 3 |  |  |
Level 3 CMO [Roll Forward] |  |  |
Assets | 3,037 | 2,351 |
Fair Value, Measurements, Nonrecurring | Level 3 | Non Purchased Credit Impaired Loans and Leases |  |  |
Level 3 CMO [Roll Forward] |  |  |
Assets | 3,037 | $ 2,351 |
Fair Value, Measurements, Nonrecurring | Level 3 | No Discounts | Third party appraisals |  |  |
Level 3 CMO [Roll Forward] |  |  |
Assets | 3,037 |  |
Asset-backed | Fair Value, Measurements, Recurring | Level 3 |  |  |
Level 3 CMO [Roll Forward] |  |  |
Unrealized net holding (losses) gains on securities available-for-sale arising during the period | (900) |  |
Fair Value, Assets, Level 3 to Level 2 Transfers, Amount | $ (38,149) |  |

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- Definition Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- Definition The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 + Details
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- Definition Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-9 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 10A -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-10A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-11 + Details
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- Definition The aggregate amount paid by the entity to reacquire the right to purchase equity shares at a predetermined price, usually issued together with corporate debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-15 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock warrants. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 14 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-14 + Details
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