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v3.23.2

Investments (Fair Value and Gross Pre-Tax Net Unrealized Loss of Securities By Length of Time) (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
U.S. Government and Government Agencies [Member] |  |
AFS Fair Value, Less than 12 Months | $ 208,153 | $ 166,975
AFS Unrealized Losses, Less than 12 months | (2,831) | (13,658)
AFS Fair Value, 12 months or longer | 84,869 | 16,011
AFS Unrealized Losses, 12 months or longer | (18,112) | (6,668)
AFS Fair Value | 293,022 | 182,986
AFS Unrealized Losses | (20,943) | (20,326)
Foreign Government [Member] |  |
AFS Fair Value, Less than 12 Months | 4,380 | 5,573
AFS Unrealized Losses, Less than 12 months | (247) | (608)
AFS Fair Value, 12 months or longer | 5,439 | 2,456
AFS Unrealized Losses, 12 months or longer | (1,071) | (699)
AFS Fair Value | 9,819 | 8,029
AFS Unrealized Losses | (1,318) | (1,307)
Obligations of States and Political Subdivisions [Member] |  |
AFS Fair Value, Less than 12 Months | 337,606 | 681,795
AFS Unrealized Losses, Less than 12 months | (5,554) | (43,767)
AFS Fair Value, 12 months or longer | 229,922 | 16,618
AFS Unrealized Losses, 12 months or longer | (31,990) | (4,234)
AFS Fair Value | 567,528 | 698,413
AFS Unrealized Losses | (37,544) | (48,001)
Corporate Securities [Member] |  |
AFS Fair Value, Less than 12 Months | 1,101,756 | 1,889,492
AFS Unrealized Losses, Less than 12 months | (40,711) | (164,197)
AFS Fair Value, 12 months or longer | 895,497 | 133,223
AFS Unrealized Losses, 12 months or longer | (148,953) | (32,612)
AFS Fair Value | 1,997,253 | 2,022,715
AFS Unrealized Losses | (189,664) | (196,809)
Collateralized Loan Obligations and Other Asset Backed Securities [Member] |  |
AFS Fair Value, Less than 12 Months | 523,727 | 916,423
AFS Unrealized Losses, Less than 12 months | (17,268) | (69,155)
AFS Fair Value, 12 months or longer | 924,490 | 411,283
AFS Unrealized Losses, 12 months or longer | (88,689) | (52,565)
AFS Fair Value | 1,448,217 | 1,327,706
AFS Unrealized Losses | (105,957) | (121,720)
Residential Mortgage Backed Securities [Member] |  |
AFS Fair Value, Less than 12 Months | 792,885 | 887,229
AFS Unrealized Losses, Less than 12 months | (26,269) | (76,432)
AFS Fair Value, 12 months or longer | 538,073 | 108,041
AFS Unrealized Losses, 12 months or longer | (75,540) | (22,833)
AFS Fair Value | 1,330,958 | 995,270
AFS Unrealized Losses | (101,809) | (99,265)
Commercial Mortgage Backed Securities [Member] |  |
AFS Fair Value, Less than 12 Months | 291,078 | 512,953
AFS Unrealized Losses, Less than 12 months | (12,882) | (37,815)
AFS Fair Value, 12 months or longer | 344,647 | 77,181
AFS Unrealized Losses, 12 months or longer | (42,162) | (11,945)
AFS Fair Value | 635,725 | 590,134
AFS Unrealized Losses | (55,044) | (49,760)
Available-for-sale Securities [Member] |  |
AFS Fair Value, Less than 12 Months | 3,259,585 | 5,060,440
AFS Unrealized Losses, Less than 12 months | (105,762) | (405,632)
AFS Fair Value, 12 months or longer | 3,022,937 | 764,813
AFS Unrealized Losses, 12 months or longer | (406,517) | (131,556)
AFS Fair Value | 6,282,522 | 5,825,253
AFS Unrealized Losses | $ (512,279) | $ (537,188)

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