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v3.20.4

Parent Company Financial Information (Condensed Statements of Cash Flows) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Operating Activities |  |  |  |  |  |  |  |  |  |  |
Net income | $ 58,300 | $ 44,734 | $ 36,582 | $ 14,628 | $ 46,129 | $ 50,727 | $ 51,724 | $ 45,871 | $ 154,244 | $ 194,451 | $ 172,882
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation expense |  |  |  |  |  |  |  |  | 10,737 | 9,271 | 8,354
Net cash provided by operating activities |  |  |  |  |  |  |  |  | 192,292 | 204,747 | 237,201
Financing Activities |  |  |  |  |  |  |  |  |  |  |
Cash dividends paid |  |  |  |  |  |  |  |  | (95,509) | (101,911) | (83,440)
Repayments of Junior Subordinated Debt |  |  |  |  |  |  |  |  | 0 | 0 | 8,248
Purchase and retirement of common stock |  |  |  |  |  |  |  |  | 2,522 | 2,792 | 2,677
Purchase of treasury stock |  |  |  |  |  |  |  |  | (20,000) | (50,834) | 0
Proceeds from exercise of stock options and employee stock purchase plan |  |  |  |  |  |  |  |  | 2,028 | 2,025 | 1,857
Net cash provided by financing activities |  |  |  |  |  |  |  |  | 2,132,586 | 630,789 | 203,936
Cash and cash equivalents at beginning of period |  |  |  | 247,673 |  |  |  | 277,587 | 247,673 | 277,587 | 342,533
Cash and cash equivalents at end of period | 653,766 |  |  |  | 247,673 |  |  |  | 653,766 | 247,673 | 277,587
Parent Company |  |  |  |  |  |  |  |  |  |  |
Operating Activities |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 154,244 | 194,451 | 172,882
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |  |  |  |  |  |  |  |
Equity in undistributed earnings of subsidiaries |  |  |  |  |  |  |  |  | (68,826) | (30,089) | (91,458)
Stock-based compensation expense |  |  |  |  |  |  |  |  | 10,737 | 9,271 | 8,354
Net changes in other assets and liabilities |  |  |  |  |  |  |  |  | (17) | (133) | 1,622
Net cash provided by operating activities |  |  |  |  |  |  |  |  | 96,138 | 173,500 | 91,400
Financing Activities |  |  |  |  |  |  |  |  |  |  |
Cash dividends paid |  |  |  |  |  |  |  |  | (96,215) | (102,265) | (83,459)
Repayments of Junior Subordinated Debt |  |  |  |  |  |  |  |  | 0 | 0 | 8,248
Purchase and retirement of common stock |  |  |  |  |  |  |  |  | 2,522 | 2,792 | 2,677
Purchase of treasury stock |  |  |  |  |  |  |  |  | (20,000) | (50,834) | 0
Proceeds from exercise of stock options and employee stock purchase plan |  |  |  |  |  |  |  |  | 2,028 | 2,025 | 1,857
Net cash provided by financing activities |  |  |  |  |  |  |  |  | (116,709) | (153,866) | (92,527)
Increase (decrease) in cash and cash equivalents |  |  |  |  |  |  |  |  | (20,571) | 19,634 | (1,127)
Cash and cash equivalents at beginning of period |  |  |  | $ 27,805 |  |  |  | $ 8,171 | 27,805 | 8,171 | 9,298
Cash and cash equivalents at end of period | $ 7,234 |  |  |  | $ 27,805 |  |  |  | $ 7,234 | $ 27,805 | $ 8,171

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