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v3.23.1

Investment Securities - Unrealized Losses (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Fair Value |  |
Less than 12 Months | $ 511,624 | $ 846,332
12 Months or Longer | 747,452 | 441,754
Total | 1,259,076 | 1,288,086
Unrealized Losses |  |
Less than 12 Months | (11,005) | (40,033)
12 Months or Longer | (96,157) | (88,762)
Total | (107,162) | (128,795)
US Treasury and Government [Member] |  |
Fair Value |  |
Less than 12 Months | 0 | 51,900
12 Months or Longer | 64,550 | 11,959
Total | 64,550 | 63,859
Unrealized Losses |  |
Less than 12 Months | 0 | (2,031)
12 Months or Longer | (3,964) | (3,022)
Total | (3,964) | (5,053)
Municipal securities |  |
Fair Value |  |
Less than 12 Months | 5,677 | 82,580
12 Months or Longer | 92,518 | 40,945
Total | 98,195 | 123,525
Unrealized Losses |  |
Less than 12 Months | (37) | (5,585)
12 Months or Longer | (14,209) | (12,648)
Total | (14,246) | (18,233)
Residential CMO and MBS |  |
Fair Value |  |
Less than 12 Months | 142,665 | 217,949
12 Months or Longer | 291,047 | 206,437
Total | 433,712 | 424,386
Unrealized Losses |  |
Less than 12 Months | (3,401) | (14,770)
12 Months or Longer | (44,267) | (40,317)
Total | (47,668) | (55,087)
Commercial CMO and MBS |  |
Fair Value |  |
Less than 12 Months | 350,217 | 473,580
12 Months or Longer | 289,192 | 181,692
Total | 639,409 | 655,272
Unrealized Losses |  |
Less than 12 Months | (7,332) | (16,971)
12 Months or Longer | (33,374) | (32,763)
Total | (40,706) | (49,734)
Corporate Debt Securities [Member] |  |
Fair Value |  |
Less than 12 Months | 3,817 | 3,834
12 Months or Longer | 0 | 0
Total | 3,817 | 3,834
Unrealized Losses |  |
Less than 12 Months | (183) | (166)
12 Months or Longer | 0 | 0
Total | (183) | (166)
Other asset-backed securities |  |
Fair Value |  |
Less than 12 Months | 9,248 | 16,489
12 Months or Longer | 10,145 | 721
Total | 19,393 | 17,210
Unrealized Losses |  |
Less than 12 Months | (52) | (510)
12 Months or Longer | (343) | (12)
Total | $ (395) | $ (522)

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