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Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
OPERATING ACTIVITIES |  |  |
Net income | $ 254,904 | $ 238,167 | $ 215,713
Adjustments to reconcile net income to net cash provided by (used in) operating activities: |  |  |
Depreciation and amortization | 49,038 | 36,257 | 28,412
Provision for credit losses | 74,973 | 43,240 | 38,148
Gain on sale of investments | (54,806) | (13,314) | (61)
Net accretion of investment securities and assets | (56,771) | (53,619) | (48,684)
Net amortization (accretion) on borrowings | 541 | 394 | (380)
Stock-based compensation expense | 13,197 | 12,921 | 9,725
Gain on sale of premises and equipment, net of impairment | (14) | 0 | 0
Gain on sale of foreclosed assets and other real estate owned | (391) | (33) | (650)
Gain on sale of mortgage loans held for sale | (44,864) | (20,064) | (12,844)
Gain on sale of other intangibles | (301) | 0 | 0
Gain on sale of branches | (8,094) | 0 | 0
Loss (gain) on sale of loans | 0 | 4,451 | (10)
Gain on sale of Visa, Inc. class B common stock | 0 | (42,860) |
Fair value write-down of closed branches | 434 | 0 | 836
Deferred income taxes | (122) | 34,911 | 8,412
Income from bank owned life insurance | (7,206) | (4,854) | (5,003)
Originations of mortgage loans held for sale | (1,206,818) | (755,500) | (546,676)
Proceeds from sale of mortgage loans held for sale | 1,172,406 | 756,642 | 556,759
Changes in assets and liabilities: |  |  |
Interest receivable | (10,846) | 3,231 | (6,227)
Other assets | (7,480) | 31,920 | (35,113)
Accrued interest and other liabilities | 50,508 | (35,886) | 33,978
Income taxes payable | (15,745) | 20,074 | (9,355)
Net cash provided by operating activities | 202,543 | 256,078 | 226,980
INVESTING ACTIVITIES |  |  |
Net collections (originations) of loans | 1,327,248 | 23,806 | (912,793)
Proceeds from sale of loans | 49,736 | 104,587 | 24,977
Decrease (increase) in due from banks - time | 2,975 | 1,130 | (1,620)
Purchases of premises and equipment, net | (13,272) | (67,831) | (29,740)
Proceeds from sale of premises and equipment | 369 | 0 | 0
Proceeds from sale of foreclosed assets and other real estate owned | 10,788 | 17,986 | 27,751
Proceeds from sale of available-for-sale securities | 1,717,364 | 1,226,578 | 0
Proceeds from maturities of available-for-sale securities | 2,346,930 | 793,270 | 258,182
Purchases of available-for-sale securities | (4,140,963) | (1,708,948) | (784,113)
Proceeds from maturities of held-to-maturity securities | 13,970 | 31,969 | 80,803
Purchases of held-to-maturity securities | (308,854) | 0 | (1,172)
Proceeds from bank owned life insurance death benefits | 2,018 | 2,435 | 1,814
Purchases of bank owned life insurance | 0 | 0 | (4,000)
Cash received in business combinations | 0 | 178,260 | 0
Disposition of assets and liabilities held for sale | 181,560 | 1,235 | (55,211)
Net cash provided by (used in) investing activities | 1,189,869 | 604,477 | (1,395,122)
FINANCING ACTIVITIES |  |  |
Net change in deposits | 1,086,713 | (404,826) | 1,305,877
Proceeds from issuance of subordinated notes and other borrowings | 0 | 25,500 | 326,355
Repayments of subordinated debentures and subordinated debt | (7,442) | 0 | (113,990)
Dividends paid on preferred stock | (52) | (339) | 0
Dividends paid on common stock | (74,593) | (63,921) | (55,646)
Net change in other borrowed funds | 45,983 | (240,806) | (34,574)
Net change in federal funds purchased and securities sold under agreements to repurchase | 148,966 | 40,207 | (26,652)
Net shares (cancelled) issued under stock compensation plans | (4,087) | (2,389) | 1,162
Shares issued under employee stock purchase plan | 956 | 1,312 | 1,026
Repurchase of common stock | (113,327) | (10,128) | 0
Retirement of preferred stock | 0 | (42,000) | 0
Net cash provided by (used in) financing activities | 1,083,117 | (697,390) | 1,403,558
INCREASE IN CASH EQUIVALENTS | 2,475,529 | 163,165 | 235,416
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR | 996,623 | 833,458 | 598,042
CASH AND CASH EQUIVALENTS, END OF YEAR | $ 3,472,152 | $ 996,623 | $ 833,458

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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585 + Details
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- Definition Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 3: 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=121586364&loc=d3e3602-108585 + Details
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- Definition The cash outflow from the repayment of long-term borrowing where a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in case of liquidation of the entity's assets or underlying collateral. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585 + Details
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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=121586364&loc=d3e3602-108585 + Details
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