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v3.22.2.2

Investment Securities, Equity Securities with Readily Determinable Fair Values and Other Investments (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Held-to-maturity securities |  |
Amortized cost | $ 3,400 | $ 3,400
Estimated fair value | 3,400 | 3,400
Carrying Value | 3,400 | 3,400
Available-for-sale securities |  |
Amortized cost | 4,796,527 | 4,254,960
Available for sale debt securities | 4,215,390 | 4,213,920
Total Amortized cost | 4,796,527 | 4,254,960
Total Gross unrealized gains | 54 | 17,197
Total Gross unrealized losses | 581,191 | 58,237
Estimated Fair Value |  |
Available-for-sale securities |  |
Available for sale debt securities and equity securities | 4,215,390 | 4,213,920
Reported Value Measurement |  |
Available-for-sale securities |  |
Available for sale debt securities and equity securities | 4,215,390 | 4,213,920
US Treasury Securities |  |
Available-for-sale securities |  |
Amortized cost | 49,533 |
Gross unrealized losses | (541) |
US Treasury Securities | Estimated Fair Value |  |
Available-for-sale securities |  |
Available for sale debt securities | 48,992 |
US Treasury Securities | Reported Value Measurement |  |
Available-for-sale securities |  |
Available for sale debt securities | 48,992 |
Residential mortgage-backed securities |  |
Available-for-sale securities |  |
Amortized cost | 4,636,564 | 4,213,441
Gross unrealized gains | 3 | 14,159
Gross unrealized losses | (573,278) | (58,237)
Residential mortgage-backed securities | Estimated Fair Value |  |
Available-for-sale securities |  |
Available for sale debt securities | 4,063,289 | 4,169,363
Residential mortgage-backed securities | Reported Value Measurement |  |
Available-for-sale securities |  |
Available for sale debt securities | 4,063,289 | 4,169,363
US Government Corporations and Agencies Securities [Member] |  |
Available-for-sale securities |  |
Available for sale debt securities | 600,731 | 824,474
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |
Available-for-sale securities |  |
Available for sale debt securities | 3,462,558 | 3,344,899
States and political subdivisions |  |
Available-for-sale securities |  |
Amortized cost | 110,430 | 41,519
Gross unrealized gains | 51 | 3,038
Gross unrealized losses | (7,372) |
States and political subdivisions | Estimated Fair Value |  |
Available-for-sale securities |  |
Available for sale debt securities | 103,109 | 44,557
States and political subdivisions | Reported Value Measurement |  |
Available-for-sale securities |  |
Available for sale debt securities | 103,109 | 44,557
Other Debt Obligations |  |
Held-to-maturity securities |  |
Amortized cost | 3,400 | 3,400
Estimated fair value | 3,400 | 3,400
Carrying Value | $ 3,400 | $ 3,400

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