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v3.21.2

Investments - Carrying value and estimated fair value (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Schedule of Available-for-sale Securities |  |
Amortized Cost | $ 1,045,753 |
Available-for-sale debt securities | 1,060,362 | $ 710,092
Amortized Cost | 1,045,753 | 689,001
Gross Unrealized Gains | 20,781 | 23,371
Gross Unrealized Losses | (6,172) | (2,280)
Available-for-sale securities | 1,060,362 | 710,092
U.S. Government agencies |  |
Schedule of Available-for-sale Securities |  |
Amortized Cost | 489 | 651
Gross Unrealized Gains | 16 | 29
Gross Unrealized Losses | 0 | 0
Available-for-sale debt securities | 505 | 680
U.S. Treasury securities |  |
Schedule of Available-for-sale Securities |  |
Amortized Cost | 9,988 |
Gross Unrealized Gains | 22 |
Gross Unrealized Losses | 0 |
Available-for-sale debt securities | 10,010 |
Obligations of states and political subdivisions |  |
Schedule of Available-for-sale Securities |  |
Amortized Cost | 494,425 | 361,734
Gross Unrealized Gains | 15,844 | 18,170
Gross Unrealized Losses | (2,349) | (339)
Available-for-sale debt securities | 507,920 | 379,565
U.S. Government sponsored entities and agencies collateralized by residential mortgage obligations |  |
Schedule of Available-for-sale Securities |  |
Amortized Cost | 226,027 | 214,203
Gross Unrealized Gains | 2,837 | 3,575
Gross Unrealized Losses | (819) | (1,480)
Available-for-sale debt securities | 228,045 | 216,298
Private label mortgage and asset backed securities |  |
Schedule of Available-for-sale Securities |  |
Amortized Cost | 255,324 | 82,413
Gross Unrealized Gains | 1,184 | 1,337
Gross Unrealized Losses | (2,752) | (242)
Available-for-sale debt securities | 253,756 | 83,508
Corporate debt securities |  |
Schedule of Available-for-sale Securities |  |
Amortized Cost | 59,500 | 30,000
Gross Unrealized Gains | 878 | 260
Gross Unrealized Losses | (252) | (219)
Available-for-sale debt securities | $ 60,126 | $ 30,041

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 + Details
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