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SECURITIES - Investments in a Continuous Unrealized Loss Position (Details) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2022 USD ($) item | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) item | Jun. 30, 2021 USD ($) | Dec. 31, 2021 USD ($)
Available-for-sale: Unrealized Loss |  |  |  |  |
Less than 12 Months | $ (49,849) |  | $ (49,849) |  | $ (7,334)
12 Months or More | (13,769) |  | (13,769) |  | (1,654)
Total Unrealized Loss of Available-for-sale securities | (63,618) |  | (63,618) |  | (8,988)
Held-to-maturity: Unrealized Loss |  |  |  |  |
Less than 12 Months | (35,679) |  | (35,679) |  | (2,826)
12 Months or More | (3,102) |  | (3,102) |  | (128)
Total Unrealized Loss of Held-to-maturity securities | (38,781) |  | (38,781) |  | (2,954)
Available-for-sale: Fair Value |  |  |  |  |
Less than 12 Months | 758,593 |  | 758,593 |  | 445,604
12 Months or More | 81,617 |  | 81,617 |  | 38,324
Total Fair Value Available-for-sale securities | 840,210 |  | 840,210 |  | 483,928
Held-to-maturity: Fair value |  |  |  |  |
Less than 12 Months | 396,417 |  | 396,417 |  | 194,309
12 Months or More | 44,514 |  | 44,514 |  | 2,776
Total Fair Value Held-to-maturity securities | 440,931 |  | 440,931 |  | 197,085
Total: Unrealized Losses |  |  |  |  |
Less Than 12 Months | (85,528) |  | (85,528) |  | (10,160)
12 Months or More | (16,871) |  | (16,871) |  | (1,782)
Total Unrealized Losses | (102,399) |  | (102,399) |  | (11,942)
Total: Fair Value |  |  |  |  |
Less than 12 Months | 1,155,010 |  | 1,155,010 |  | 639,913
12 Months or More | 126,131 |  | 126,131 |  | 41,100
Total Fair Value | $ 1,281,141 |  | $ 1,281,141 |  | 681,013
Number of securities in an unrealized loss position for a period of twelve months or more | item | 87 |  | 87 |  |
Number of securities in an unrealized loss position for a period of less than twelve months | item | 603 |  | 603 |  |
Proceeds from sales of securities available-for-sale | $ 0 | $ 0 | $ 0 | $ 0 |
U.S. Treasury |  |  |  |  |
Available-for-sale: Unrealized Loss |  |  |  |  |
Less than 12 Months | (10,725) |  | (10,725) |  | (354)
Total Unrealized Loss of Available-for-sale securities | (10,725) |  | (10,725) |  | (354)
Available-for-sale: Fair Value |  |  |  |  |
Less than 12 Months | 159,205 |  | 159,205 |  | 68,410
Total Fair Value Available-for-sale securities | 159,205 |  | 159,205 |  | 68,410
U.S. government agency |  |  |  |  |
Available-for-sale: Unrealized Loss |  |  |  |  |
Less than 12 Months | (2,156) |  | (2,156) |  | (2,183)
12 Months or More |  |  |  |  | (284)
Total Unrealized Loss of Available-for-sale securities | (2,156) |  | (2,156) |  | (2,467)
Held-to-maturity: Unrealized Loss |  |  |  |  |
Less than 12 Months | (2,564) |  | (2,564) |  | (51)
12 Months or More | (2,800) |  | (2,800) |  |
Total Unrealized Loss of Held-to-maturity securities | (5,364) |  | (5,364) |  | (51)
Available-for-sale: Fair Value |  |  |  |  |
Less than 12 Months | 58,197 |  | 58,197 |  | 80,219
12 Months or More |  |  |  |  | 5,578
Total Fair Value Available-for-sale securities | 58,197 |  | 58,197 |  | 85,797
Held-to-maturity: Fair value |  |  |  |  |
Less than 12 Months | 40,773 |  | 40,773 |  | 4,949
12 Months or More | 42,276 |  | 42,276 |  |
Total Fair Value Held-to-maturity securities | 83,049 |  | 83,049 |  | 4,949
Municipal securities |  |  |  |  |
Available-for-sale: Unrealized Loss |  |  |  |  |
Less than 12 Months | (15,751) |  | (15,751) |  | (2,018)
12 Months or More | (9,910) |  | (9,910) |  | (886)
Total Unrealized Loss of Available-for-sale securities | (25,661) |  | (25,661) |  | (2,904)
Held-to-maturity: Unrealized Loss |  |  |  |  |
Less than 12 Months | (66) |  | (66) |  |
Total Unrealized Loss of Held-to-maturity securities | (66) |  | (66) |  |
Available-for-sale: Fair Value |  |  |  |  |
Less than 12 Months | 176,771 |  | 176,771 |  | 89,424
12 Months or More | 50,424 |  | 50,424 |  | 17,327
Total Fair Value Available-for-sale securities | 227,195 |  | 227,195 |  | 106,751
Held-to-maturity: Fair value |  |  |  |  |
Less than 12 Months | 6,513 |  | 6,513 |  |
Total Fair Value Held-to-maturity securities | 6,513 |  | 6,513 |  |
Mortgage-backed: Agency residential |  |  |  |  |
Available-for-sale: Unrealized Loss |  |  |  |  |
Less than 12 Months | (11,320) |  | (11,320) |  | (851)
12 Months or More | (306) |  | (306) |  | (68)
Total Unrealized Loss of Available-for-sale securities | (11,626) |  | (11,626) |  | (919)
Held-to-maturity: Unrealized Loss |  |  |  |  |
Less than 12 Months | (1,971) |  | (1,971) |  | (102)
Total Unrealized Loss of Held-to-maturity securities | (1,971) |  | (1,971) |  | (102)
Available-for-sale: Fair Value |  |  |  |  |
Less than 12 Months | 203,603 |  | 203,603 |  | 91,703
12 Months or More | 4,556 |  | 4,556 |  | 4,305
Total Fair Value Available-for-sale securities | 208,159 |  | 208,159 |  | 96,008
Held-to-maturity: Fair value |  |  |  |  |
Less than 12 Months | 74,978 |  | 74,978 |  | 14,932
Total Fair Value Held-to-maturity securities | 74,978 |  | 74,978 |  | 14,932
Mortgage-backed: Agency commercial |  |  |  |  |
Available-for-sale: Unrealized Loss |  |  |  |  |
Less than 12 Months | (8,812) |  | (8,812) |  | (1,921)
12 Months or More | (2,543) |  | (2,543) |  | (127)
Total Unrealized Loss of Available-for-sale securities | (11,355) |  | (11,355) |  | (2,048)
Held-to-maturity: Unrealized Loss |  |  |  |  |
Less than 12 Months | (31,078) |  | (31,078) |  | (2,673)
12 Months or More | (302) |  | (302) |  | (128)
Total Unrealized Loss of Held-to-maturity securities | (31,380) |  | (31,380) |  | (2,801)
Available-for-sale: Fair Value |  |  |  |  |
Less than 12 Months | 114,025 |  | 114,025 |  | 113,111
12 Months or More | 22,685 |  | 22,685 |  | 6,443
Total Fair Value Available-for-sale securities | 136,710 |  | 136,710 |  | 119,554
Held-to-maturity: Fair value |  |  |  |  |
Less than 12 Months | 274,153 |  | 274,153 |  | 174,428
12 Months or More | 2,238 |  | 2,238 |  | 2,776
Total Fair Value Held-to-maturity securities | 276,391 |  | 276,391 |  | 177,204
Corporate |  |  |  |  |
Available-for-sale: Unrealized Loss |  |  |  |  |
Less than 12 Months | (1,085) |  | (1,085) |  | (7)
12 Months or More | (1,010) |  | (1,010) |  | (289)
Total Unrealized Loss of Available-for-sale securities | (2,095) |  | (2,095) |  | (296)
Available-for-sale: Fair Value |  |  |  |  |
Less than 12 Months | 46,792 |  | 46,792 |  | 2,737
12 Months or More | 3,952 |  | 3,952 |  | 4,671
Total Fair Value Available-for-sale securities | $ 50,744 |  | $ 50,744 |  | $ 7,408

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