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INVESTMENTS (Narrative) (Detail) - USD ($) $ in Thousands | 1 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2022 | Sep. 30, 2022 | Dec. 31, 2021
Schedule of Investments [Line Items] |  |  |
Trading securities |  | $ 3,727 | $ 4,428
AFS debt securities, allowance |  | 0 | 0
Net unrealized loss on debt securities, net of tax |  | 86,600 | 1,200
Deferred tax assets, unrealized losses on available for sale securities |  | 23,700 | 321
HTM debt securities, allowance |  | 0 | 0
HTM debt securities, excluding accrued interest from amortized cost |  | 1,400 | 10
Asset Pledged as Collateral |  |  |
Schedule of Investments [Line Items] |  |  |
AFS and HTM debt securities, amortized cost |  | 765,800 | 640,100
AFS and HTM debt securities, fair value |  | 673,600 | 641,200
Available-for-sale Securities |  |  |
Schedule of Investments [Line Items] |  |  |
Interest Receivable |  | 2,000 | $ 3,400
Transferred Securities |  |  |
Schedule of Investments [Line Items] |  |  |
AFS debt securities transferred to HTM, fair value | $ 520,300 |  |
AFS debt securities, transfer, unrealized loss | $ 72,100 |  |
Net unrealized loss on debt securities, net of tax |  | (53,700) |
Deferred tax assets, unrealized losses on available for sale securities |  | $ 14,700 |

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