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v3.21.2

Operating Segments - Summary of Operating Results by Segment (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Segment Reporting Information [Line Items] |  |  |  |
Interest Income (Expense), Net | $ 257,156 | $ 245,811 | $ 498,037 | $ 490,332
Credit loss expense | 0 | 31,975 | 63 | 207,172
Total non-interest income | 91,247 | 77,601 | 184,483 | 290,516
Total non-interest expense | 215,254 | 199,679 | 425,396 | 423,842
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest | 133,149 | 91,758 | 257,061 | 149,834
Income taxes | 15,081 | (1,314) | 22,978 | 2,009
Net income | 118,068 | 93,072 | 234,083 | 147,825
Less: Preferred stock dividends | 1,669 | 0 | 3,820 | 2,016
Redemption of preferred stock | 0 | 0 | 0 | 5,514
Net Income (Loss) Available to Common Stockholders, Basic | 116,399 | 93,072 | 230,263 | 140,295
Revenues from (expenses to) external customers | 348,403 | 323,412 | 682,520 | 780,848
Bank |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Interest Income (Expense), Net | 258,450 | 247,279 | 500,655 | 493,292
Credit loss expense | 0 | 31,976 | 63 | 207,174
Total non-interest income | 48,944 | 42,906 | 102,724 | 216,322
Total non-interest expense | 183,109 | 166,620 | 362,260 | 355,592
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest | 124,285 | 91,589 | 241,056 | 146,848
Income taxes | 13,605 | (903) | 20,782 | 2,332
Net income | 110,680 |  | 220,274 | 144,516
Less: Preferred stock dividends | 0 |  | 0 | 0
Redemption of preferred stock |  |  |  | 0
Net Income (Loss) Available to Common Stockholders, Basic | 110,680 | 92,492 | 220,274 | 144,516
Revenues from (expenses to) external customers | 307,394 | 290,185 | 603,379 | 709,614
Frost Wealth Advisors [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Interest Income (Expense), Net | 508 | 684 | 994 | 1,561
Credit loss expense | 0 | (1) | 0 | (2)
Total non-interest income | 42,534 | 34,920 | 82,143 | 74,650
Total non-interest expense | 30,014 | 30,637 | 59,951 | 64,173
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest | 13,028 | 4,968 | 23,186 | 12,040
Income taxes | 2,736 | 1,043 | 4,869 | 2,528
Net income | 10,292 |  | 18,317 | 9,512
Less: Preferred stock dividends | 0 |  | 0 | 0
Redemption of preferred stock |  |  |  | 0
Net Income (Loss) Available to Common Stockholders, Basic | 10,292 | 3,925 | 18,317 | 9,512
Revenues from (expenses to) external customers | 43,042 | 35,604 | 83,137 | 76,211
Non-Banks [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Interest Income (Expense), Net | (1,802) | (2,152) | (3,612) | (4,521)
Credit loss expense | 0 | 0 | 0 | 0
Total non-interest income | (231) | (225) | (384) | (456)
Total non-interest expense | 2,131 | 2,422 | 3,185 | 4,077
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest | (4,164) | (4,799) | (7,181) | (9,054)
Income taxes | (1,260) | (1,454) | (2,673) | (2,851)
Net income | (2,904) |  | (4,508) | (6,203)
Less: Preferred stock dividends | 1,669 |  | 3,820 | 2,016
Redemption of preferred stock |  |  |  | 5,514
Net Income (Loss) Available to Common Stockholders, Basic | (4,573) | (3,345) | (8,328) | (13,733)
Revenues from (expenses to) external customers | $ (2,033) | $ (2,377) | $ (3,996) | $ (4,977)

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