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v3.20.4

Shareholders' Equity and Other Comprehensive Income (Changes in Shares by Class) (Details) |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jan. 01, 2019 shares | Dec. 31, 2020 shares | Dec. 31, 2019 shares | Dec. 31, 2018 USD ($) shares | Jun. 17, 2019 USD ($) | Jun. 16, 2019 USD ($) | Jan. 15, 2019 USD ($)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Balance, Common stock, shares outstanding (in shares) |  | 147,157,596 |  |  |  |  |
Warrants exercised and common stock reissued (in shares) |  |  | 263,000 |  |  |  |
Stock options exercised (in shares) |  | 572,000 | 820,000 | 126,000 |  |  |
Repurchase of common stock (in shares) |  | 450,000 | 19,903,000 |  |  |  |
Balance, Common stock, shares outstanding (in shares) |  | 148,039,495 | 147,157,596 |  |  |  |
Stock repurchase program, authorized amount | $ |  |  |  | $ 150,000,000.0 | $ 725,000,000.0 | $ 325,000,000.0 | $ 400,000,000.0
FCB Financial Holdings, Inc. |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Issuance of common stock (in shares) | 49,500,000 |  |  |  |  |  |
FCB Financial Holdings, Inc. | FCB Financial Holdings, Inc. |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Merger exchange ratio | 1.055 |  |  |  |  |  |
Preferred Shares Issued |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Balance (in shares) | 8,000,000 | 22,000,000 | 8,000,000 | 5,200,000 |  |  |
Issuance of preferred stock (in shares) |  |  | 14,000,000 | 8,000,000 |  |  |
Repurchase of stock (in shares) |  |  |  | 5,200,000 |  |  |
Balance (in shares) |  | 22,000,000 | 22,000,000 | 8,000,000 |  |  |
Preferred Shares Issued | Series C Preferred Stock |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Balance (in shares) | 0 | 0 | 0 | 5,200,000 |  |  |
Repurchase of stock (in shares) |  |  |  | 5,200,000 |  |  |
Balance (in shares) |  | 0 | 0 | 0 |  |  |
Preferred Shares Issued | Series D Preferred Stock |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Balance (in shares) | 8,000,000 | 8,000,000 | 8,000,000 | 0 |  |  |
Issuance of preferred stock (in shares) |  |  | 0 | 8,000,000 |  |  |
Balance (in shares) |  | 8,000,000 | 8,000,000 | 8,000,000 |  |  |
Preferred Shares Issued | Series E Preferred Stock |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Balance (in shares) | 0 | 14,000,000 | 0 | 0 |  |  |
Issuance of preferred stock (in shares) |  |  | 14,000,000 |  |  |  |
Balance (in shares) |  | 14,000,000 | 14,000,000 | 0 |  |  |
Common Stock |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Balance (in shares) | 143,300,000 | 166,801,000 | 143,300,000 | 142,678,000 |  |  |
Balance, Common stock, shares outstanding (in shares) | 115,866,000 | 147,158,000 | 115,866,000 | 118,897,000 |  |  |
Issuance of common stock (in shares) |  | 379,000 | 344,000 | 199,000 |  |  |
Warrants exercised and common stock reissued (in shares) |  |  | 260,000 |  |  |  |
Restricted share unit activity (in shares) |  | 389,000 | 302,000 | 297,000 |  |  |
Stock options exercised (in shares) |  | 564,000 | 812,000 | 126,000 |  |  |
Repurchase of common stock (in shares) |  | 450,000 | 19,900,000 | 3,700,000 |  |  |
Repurchase of stock (in shares) |  | (450,000) | (19,903,000) | (3,653,000) |  |  |
Balance (in shares) |  | 168,133,000 | 166,801,000 | 143,300,000 |  |  |
Balance, Common stock, shares outstanding (in shares) |  | 148,040,000 | 147,158,000 | 115,866,000 |  |  |
Common Stock | FCB Financial Holdings, Inc. |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Issuance of common stock (in shares) |  |  | 22,043,000 |  |  |  |
Common stock reissued (in shares) |  |  | (27,434,000) |  |  |  |
Treasury Stock |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Balance (in shares) | 27,434,000 | 19,643,000 | 27,434,000 | 23,781,000 |  |  |
Warrants exercised and common stock reissued (in shares) |  |  | (260,000) |  |  |  |
Repurchase of common stock (in shares) |  |  |  | 3,653,000 |  |  |
Balance (in shares) |  | 20,093,000 | 19,643,000 | 27,434,000 |  |  |
Treasury Stock | FCB Financial Holdings, Inc. |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Common stock reissued (in shares) |  |  | (27,434,000) |  |  |  |

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