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v3.21.1

Business Segments - Financial Information by Business Segment (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Segment Reporting Information [Line Items] |  |
Interest and dividend income | $ 125,054 | $ 142,448
Interest expense | 8,576 | 22,286
Net interest income | 116,478 | 120,162
Provision for credit losses | (27,958) | 29,821
Net interest income after provision for credit losses | 144,436 | 90,341
Non-interest income | 33,208 | 28,009
Non-interest expense | 86,327 | 91,333
Income before provision for income taxes | 91,317 | 27,017
Provision for income taxes | 18,202 | 3,621
Net income | 73,115 | 23,396
Preferred stock dividends | 2,531 |
Net income available to common shareholders | 70,584 | 23,396
Community Banking [Member] |  |
Segment Reporting Information [Line Items] |  |
Interest and dividend income | 125,054 | 142,448
Interest expense | 8,576 | 22,286
Net interest income | 116,478 | 120,162
Provision for credit losses | (27,958) | 29,821
Net interest income after provision for credit losses | 144,436 | 90,341
Non-interest income | 25,577 | 21,057
Non-interest expense | 82,011 | 86,918
Income before provision for income taxes | 88,002 | 24,480
Provision for income taxes | 17,506 | 3,088
Net income | 70,496 |
Preferred stock dividends | 2,531 |
Net income available to common shareholders | 67,965 | 21,392
Trust and Investment Services [Member] |  |
Segment Reporting Information [Line Items] |  |
Non-interest income | 7,631 | 6,952
Non-interest expense | 4,316 | 4,415
Income before provision for income taxes | 3,315 | 2,537
Provision for income taxes | 696 | 533
Net income | 2,619 |
Net income available to common shareholders | $ 2,619 | $ 2,004

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