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FAIR VALUE MEASUREMENTS - Fair Values and Carrying Amounts (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Financial Assets |  |
Trading security | $ 6,800 | $ 8,400
Marketable equity securities | 12,790 | 15,453
Securities available for sale, at fair value | 1,470,949 | 1,877,585
Securities held to maturity | 503,262 | 647,236
FHLB bank stock and restricted securities | 7,264 | 10,800
Level 1 |  |
Financial Assets |  |
Cash and cash equivalents | 694,913 | 1,627,807
Trading security | 0 | 0
Marketable equity securities | 12,790 | 14,798
Securities available for sale, at fair value | 0 | 0
Securities held to maturity | 0 | 0
Net loans | 0 | 0
Loans held for sale | 0 | 0
Accrued interest receivable | 0 | 0
Derivative assets | 0 | 0
Financial Liabilities |  |
Total deposits | 0 | 0
Short-term debt | 0 | 0
Long-term Federal Home Loan Bank advances and other | 0 | 0
Subordinated borrowings | 0 | 0
Derivative liabilities | 0 | 0
Level 2 |  |
Financial Assets |  |
Cash and cash equivalents | 0 | 0
Trading security | 0 | 0
Marketable equity securities | 0 | 655
Securities available for sale, at fair value | 1,467,029 | 1,873,555
Securities held to maturity | 501,164 | 644,497
Net loans | 0 | 0
Loans held for sale | 550 | 6,110
Accrued interest receivable | 40,444 | 33,534
Derivative assets | 52,997 | 79,270
Financial Liabilities |  |
Total deposits | 9,944,085 | 10,073,217
Short-term debt | 0 | 0
Long-term Federal Home Loan Bank advances and other | 2,888 | 13,053
Subordinated borrowings | 110,109 | 95,006
Derivative liabilities | 101,745 | 35,194
Level 3 |  |
Financial Assets |  |
Cash and cash equivalents | 0 | 0
Trading security | 6,812 | 8,354
Marketable equity securities | 0 | 0
Securities available for sale, at fair value | 3,920 | 4,030
Securities held to maturity | 2,098 | 2,739
Net loans | 7,798,562 | 6,850,975
Loans held for sale | 3,574 | 0
Accrued interest receivable | 0 | 0
Derivative assets | 22 | 258
Financial Liabilities |  |
Total deposits | 0 | 0
Short-term debt | 0 | 0
Long-term Federal Home Loan Bank advances and other | 0 | 0
Subordinated borrowings | 0 | 0
Derivative liabilities | 0 | 0
Carrying Amount |  |
Financial Assets |  |
Cash and cash equivalents | 694,913 | 1,627,807
Trading security | 6,812 | 8,354
Marketable equity securities | 12,790 | 15,453
Securities available for sale, at fair value | 1,470,949 | 1,877,585
Securities held to maturity | 592,503 | 636,503
FHLB bank stock and restricted securities | 7,264 | 10,800
Net loans | 7,847,468 | 6,719,753
Loans held for sale | 4,124 | 6,110
Accrued interest receivable | 40,444 | 33,534
Derivative assets | 53,019 | 79,528
Financial Liabilities |  |
Total deposits | 9,988,121 | 10,068,953
Short-term debt | 0 | 0
Long-term Federal Home Loan Bank advances and other | 4,494 | 13,331
Subordinated borrowings | 121,001 | 97,513
Derivative liabilities | 101,745 | 35,194
Fair Value |  |
Financial Assets |  |
Cash and cash equivalents | 694,913 | 1,627,807
Trading security | 6,812 | 8,354
Marketable equity securities | 12,790 | 15,453
Securities available for sale, at fair value | 1,470,949 | 1,877,585
Securities held to maturity | 503,262 | 647,236
Net loans | 7,798,562 | 6,850,975
Loans held for sale | 4,124 | 6,110
Accrued interest receivable | 40,444 | 33,534
Derivative assets | 53,019 | 79,528
Financial Liabilities |  |
Total deposits | 9,944,085 | 10,073,217
Short-term debt | 0 | 0
Long-term Federal Home Loan Bank advances and other | 2,888 | 13,053
Subordinated borrowings | 110,109 | 95,006
Derivative liabilities | $ 101,745 | $ 35,194

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