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Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Operating Activities |  |  |  |
Net income |  | $ 760,467 | $ 373,695 | $ 563,780
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |
Provision for (reversal of) credit losses | [1] | (106,251) | 355,022 | 87,720
Depreciation, amortization, and accretion, net |  | 157,987 | 106,107 | 8,079
Deferred income tax expense (benefit) |  | 45,000 | (86,192) | 86,633
Originations of loans held for sale |  | (3,698,368) | (3,466,170) | (872,105)
Proceeds from sales of loans held for sale |  | 3,749,502 | 2,936,398 | 816,223
Gain on sales of loans held for sale, net |  | (42,513) | (67,115) | (21,448)
Increase in other assets |  | (78,728) | (411,632) | (127,636)
Increase (decrease) in other liabilities |  | (21,674) | 281,866 | 43,066
Investment securities (gains) losses, net |  | 799 | (78,931) | 7,659
Share-based compensation expense |  | 27,795 | 18,641 | 24,487
Other |  | 0 | 55,343 | 4,592
Net cash provided by operating activities |  | 794,016 | 17,032 | 621,050
Investing Activities |  |  |  |
Net cash received in business combination, net of cash paid |  | 0 | 0 | 201,100
Proceeds from maturities and principal collections of investment securities available for sale |  | 3,051,158 | 2,291,536 | 1,102,651
Proceeds from sales of investment securities available for sale |  | 565,400 | 2,649,686 | 2,923,787
Purchases of investment securities available for sale |  | (6,877,712) | (6,036,179) | (4,300,021)
Proceeds from sales of loans |  | 111,168 | 1,426,954 | 74,123
Purchases of loans |  | (1,624,182) | (126,152) | (667,954)
Net (increase) decrease in loans |  | 373,964 | (2,461,302) | (1,361,693)
Net purchases of Federal Reserve Bank stock |  | (1,220) | (658) | (55,335)
Net (purchases) redemptions of Federal Home Loan Bank stock |  | (1,200) | 129,710 | (45,856)
Net (purchases) proceeds from settlement of bank-owned life insurance policies |  | 19,045 | (242,300) | 16,637
Net increase in premises, equipment and software |  | (25,954) | (30,102) | (61,208)
Other |  | 25,367 | 45,834 | 19,907
Net cash used in investing activities |  | (4,384,166) | (2,352,973) | (2,153,862)
Financing Activities |  |  |  |
Net increase in deposits |  | 2,735,705 | 8,284,519 | 797,612
Net increase (decrease) in federal funds purchased and securities sold under repurchase agreements |  | 36,211 | 62,232 | (101,142)
Net increase (decrease) in other short-term borrowings |  | 0 | (1,745,843) | 1,103,560
Repayments and redemption of long-term debt |  | 0 | (2,408,939) | (157,226)
Proceeds from issuance of long-term debt, net |  | 0 | 1,445,492 | 497,045
Dividends paid to common shareholders |  | (194,677) | (189,967) | (167,923)
Dividends paid to preferred shareholders |  | (33,163) | (33,163) | (17,741)
Proceeds from issuance of preferred stock, net |  | 0 | 0 | 342,005
Issuances, net of taxes paid, under equity compensation plans |  | 11,566 | 5,407 | 7,321
Repurchase of common stock |  | (199,932) | (16,246) | (725,398)
Other |  | (8,624) | (1,552) | (1,947)
Net cash provided by financing activities |  | 2,347,086 | 5,401,940 | 1,576,166
Increase (decrease) in cash and cash equivalents including restricted cash |  | (1,243,064) | 3,065,999 | 43,354
Cash, cash equivalents, and restricted cash at beginning of year |  | 4,252,917 | 1,186,918 | 1,143,564
Cash, cash equivalents, and restricted cash at end of year |  | 3,009,853 | 4,252,917 | 1,186,918
Supplemental Disclosures: |  |  |  |
Income taxes paid |  | 204,214 | 110,828 | 101,781
Interest paid |  | 132,923 | 319,282 | 464,712
Non-cash Activities: |  |  |  |
Common stock issued, treasury stock reissued, equity awards/warrants exchanged to acquire FCB |  | 0 | 0 | 1,625,688
Loans foreclosed and transferred to other real estate |  | 12,408 | 2,163 | 19,423
Loans transferred to (from) loans held for sale at fair value |  | $ (859) | $ 49,821 | $ 72,707
[1] | Beginning January 1, 2020, provision calculation is based on current expected credit loss methodology. Prior to January 1, 2020, calculation was based on incurred loss methodology.

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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
Name: | us-gaap_ShareBasedCompensation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration