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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Cash flows from operating activities |  |  |
Net income | $ 71,289 | $ 73,395 | $ 60,352
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities: |  |  |
Depreciation and amortization of premises and equipment | 4,244 | 3,053 | 3,062
Provision for loan losses | 41,000 | 8,100 | 21,100
Amortization of intangibles | 2,559 | 1,408 | 627
Net accretion of loans | (6,687) | (5,056) | (1,127)
Accretion on bank premises | (90) | (86) | (67)
Accretion on deposits | (4,301) | (1,149) | (57)
(Accretion) amortization on borrowings | (183) | 209 | (76)
Net deferred income tax expense | (7,495) | 104 | 926
Stock-based compensation | 2,949 | 2,942 | 1,884
Losses (gains) on sales of investment securities, net | (29) | 280 |
Change in fair value of equity securities, net | (202) | (294) | 267
Gains (losses) on sale of loans held-for-sale, net | (2,085) | (512) | (61)
Loans originated for resale | (63,114) | (20,499) | (4,121)
Loss on extinguishment of debt |  | 1,047 |
Proceeds from sale of loans held-for-sale | 80,323 | 21,011 | 4,552
Net (gains) losses on disposition of premises and equipment |  | (8) | 26
Net (gains) losses on sale of other real estate owned |  | (8) | 192
Increase in cash surrender value of bank owned life insurance | (4,793) | (3,484) | (3,094)
Amortization of premiums and accretion of discounts on investments securities, net | 5,506 | 4,299 | 3,233
Amortization of subordinated debt issuance costs | 323 | 329 | 332
Increase in accrued interest receivable | (11,458) | (301) | (2,744)
Net change in operating leases | 41 | 1,312 |
Increase in other assets | (22,498) | (22,619) | (1,134)
(Decrease) increase in other liabilities | (4,174) | (2,785) | 4,988
Net cash provided by operating activities | 81,125 | 60,688 | 89,060
Investment securities available-for-sale: |  |  |
Purchases | (338,087) | (225,853) | (140,013)
Sales | 19,624 | 183,728 |
Maturities, calls and principal repayments | 256,782 | 178,116 | 141,859
Net redemptions (purchases) of restricted investment in bank stocks | 5,362 | 3,739 | 2,361
Purchases of equity securities | (2,000) |  |
Sales of equity securities |  | 569 |
Loans held-for-sale payments | 1,186 | 47 | 159
Net increase in loans | (329,210) | (243,430) | (362,625)
Purchases of premises and equipment | (2,199) | (1,527) | (2,051)
Purchases of bank owned life insurance | (25,000) | (10,000) |
Proceeds from life insurance death benefits | 1,794 |  | 585
Proceeds from sale of premises and equipment |  | 18 | 1,627
Cash and cash equivalents acquired in acquisitions, net | 87,391 | 11,211 |
Proceeds from sale of other real estate owned | 992 | 915 | 884
Net cash used in investing activities | (323,365) | (102,467) | (357,214)
Cash flows from financing activities |  |  |
Net increase in deposits | 410,605 | 260,489 | 297,021
Increase in subordinated debt | 73,440 |  | 73,525
Advances of borrowings | 1,526,489 | 2,597,000 | 1,733,000
Repayments of borrowings | (1,650,387) | (2,762,150) | (1,803,000)
Cash dividends paid on common stock | (14,317) | (12,160) | (9,664)
Purchase of treasury stock | (911) | (12,643) |
Proceeds from exercise of stock options | 233 | 360 | 875
Share redemption for tax withholdings on performance units and restricted stock units earned | (639) |  | (819)
Net cash provided by financing activities | 344,513 | 70,896 | 290,938
Net change in cash and cash equivalents | 102,273 | 29,117 | 22,784
Cash and cash equivalents at beginning of period | 201,483 | 172,366 | 149,582
Cash and cash equivalents at end of period | 303,756 | 201,483 | 172,366
Cash payments for: |  |  |
Interest paid | 74,701 | 88,522 | 55,662
Income taxes paid | 18,497 | 18,497 | 9,092
Supplemental disclosures of noncash investing activities: |  |  |
Transfer of loans to other real estate owned |  | 907 | 538
Transfer of loan held-for-sale to loans held-for-investment | 10,995 |  | 45,552
Transfer of loans held-for-investment to loans held-for-sale | 26,548 | 33,297 | 21,236
Business combinations: |  |  |
Fair value of net assets acquired, net of cash and cash equivalents | $ 949,282 | $ 534,146 |

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- Definition The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method. + 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 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
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- Definition Current period recognition due to accretion of the excess of a loan's cash flows expected to be collected over the investor's initial investment in the loan for loans accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121585399&loc=d3e13503-111538 + Details
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- Definition Value of loans held-for-sale transferred to loans held in the entity's portfolio in noncash transactions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4332-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4313-108586 + Details
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