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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Summary of Changes in Accumulated Balances of AOCI Including Current Period Other Comprehensive Income (Loss) and Reclassifications Out of AOCI (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |
Beginning balance | $ 4,106,002 | $ 3,122,381 | $ 2,967,940
Other comprehensive income (loss) before reclassifications | 27,521 | (22,471) | 32,386
Less: gain (loss) reclassified from AOCI | (1,454) | 13,732 | 15,853
Tax effect | 1,596 | (100) | (1,640)
Net change in unrealized holding gain (loss), net of tax | 30,571 | (36,303) | 14,893
Ending balance | 4,270,740 | 4,106,002 | 3,122,381
Unrealized Gains (Losses) on Cash Flow Hedges |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |
Beginning balance | (20,028) | 16,614 | 7,201
Other comprehensive income (loss) before reclassifications | 34,379 | (23,462) | 25,266
Less: gain (loss) reclassified from AOCI | (1,454) | 13,180 | 15,853
Tax effect | 0 | 0 | 0
Net change in unrealized holding gain (loss), net of tax | 35,833 | (36,642) | 9,413
Ending balance | 15,805 | (20,028) | 16,614
Unrealized Gains (Losses) on Available-for-Sale Debt Securities |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |
Beginning balance | 3,889 | 3,565 | (1,917)
Other comprehensive income (loss) before reclassifications | (6,858) | 976 | 7,122
Less: gain (loss) reclassified from AOCI | 0 | 552 | 0
Tax effect | 1,596 | (100) | (1,640)
Net change in unrealized holding gain (loss), net of tax | (5,262) | 324 | 5,482
Ending balance | (1,373) | 3,889 | 3,565
Accumulated Gain Loss from Other |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |
Beginning balance | 0 | (15) | (13)
Other comprehensive income (loss) before reclassifications | 0 | 15 | (2)
Less: gain (loss) reclassified from AOCI | 0 | 0 | 0
Tax effect | 0 | 0 | 0
Net change in unrealized holding gain (loss), net of tax | 0 | 15 | (2)
Ending balance | 0 | 0 | (15)
Accumulated Other Comprehensive Income (Loss) |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |
Beginning balance | (16,139) | 20,164 | 5,271
Ending balance | $ 14,432 | $ (16,139) | $ 20,164

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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