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FAIR VALUE DISCLOSURES - Summary of Financial Assets and Liabilities Measure at Fair Value on a Recurring Basis (Detail) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Assets |  |
Investment Securities, Available-for-sale | $ 3,409,648 | $ 4,207,846
Loans Held-for-sale, Fair Value Disclosure | 7,900 | 29,500
Derivatives |  | 212,970
Liabilities |  |
Derivatives | 357,698 | 212,977
Impaired Commercial And Commercial Real Estate Loans Member |  |
Liabilities |  |
Principal Amount of Commercial and Commercial Real Estate Loans | 11,900 | 28,800
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 [Member] | Fair value |  |
Assets |  |
Loans Held-for-sale, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 [Member] |  |
Assets |  |
Investment Securities, Available-for-sale | 32,696 | 34,776
Derivatives |  | 0
Total | 32,696 | 34,776
Liabilities |  |
Total | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 [Member] | Fair value |  |
Assets |  |
Loans Held-for-sale, Fair Value Disclosure | 7,918 | 29,482
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 [Member] |  |
Assets |  |
Investment Securities, Available-for-sale | 3,341,096 | 4,134,889
Derivatives |  | 92,328
Total | 3,706,742 | 4,377,467
Liabilities |  |
Total | 358,001 | 213,212
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 [Member] | Fair value |  |
Assets |  |
Loans Held-for-sale, Fair Value Disclosure | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 [Member] |  |
Assets |  |
Investment Securities, Available-for-sale | 35,856 | 38,181
Derivatives |  | 0
Total | 35,856 | 38,181
Liabilities |  |
Total | 0 | 0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1, 2 and 3 [Member] |  |
Assets |  |
Investment Securities, Available-for-sale | 3,409,648 | 4,207,846
Loans Held-for-sale, Fair Value Disclosure | 7,918 | 29,482
Derivatives |  | 92,328
Total | 3,775,294 | 4,450,424
Liabilities |  |
Total | 358,001 | 213,212
Interest Rate Contract [Member] | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 [Member] |  |
Assets |  |
Derivatives | 0 |
Liabilities |  |
Derivatives | 0 | 0
Interest Rate Contract [Member] | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 [Member] |  |
Assets |  |
Derivatives | 152,846 |
Liabilities |  |
Derivatives | 153,119 | 92,444
Interest Rate Contract [Member] | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 [Member] |  |
Assets |  |
Derivatives | 0 |
Liabilities |  |
Derivatives | 0 | 0
Interest Rate Contract [Member] | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1, 2 and 3 [Member] |  |
Assets |  |
Derivatives | 152,846 |
Liabilities |  |
Derivatives | 153,119 | 92,444
Foreign Exchange [Member] | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 [Member] |  |
Assets |  |
Derivatives | 0 | 0
Liabilities |  |
Derivatives | 0 | 0
Foreign Exchange [Member] | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 [Member] |  |
Assets |  |
Derivatives | 204,882 | 120,768
Liabilities |  |
Derivatives | 204,882 | 120,768
Foreign Exchange [Member] | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 [Member] |  |
Assets |  |
Derivatives | 0 | 0
Liabilities |  |
Derivatives | 0 | 0
Foreign Exchange [Member] | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1, 2 and 3 [Member] |  |
Assets |  |
Derivatives | 204,882 | 120,768
Liabilities |  |
Derivatives | $ 204,882 | $ 120,768

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