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PARENT COMPANY FINANCIAL INFORMATION (Financial Information for the Parent Company - Statements of Cash Flows) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Operating activities: |  |  |
Net income | $ 193,528 | $ 146,248 | $ 72,923
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation of premises and equipment | 15,032 | 13,725 | 11,183
Amortization (accretion) related to acquisition, net | (7,899) | (6,711) | (866)
Issuance of common stock for services | 910 | 914 | 724
Net (increase) decrease in other assets | (57,348) | (26,606) | (5,785)
Net increase in other liabilities | 12,910 | 24,005 | 5,352
Net cash and cash equivalents provided by operating activities | 194,799 | 216,765 | 110,333
Investing activities: |  |  |
Net increase in premises and equipment | (15,892) | 1,698 | (9,261)
Cash paid in acquisitions | (12) | (14,304) | (231)
Cash received in acquisitions | 46,164 | 174,496 | 5,038
Net cash and cash equivalents provided by (used in) investing activities | (425,401) | (770,039) | (885,753)
Financing activities: |  |  |
Net increase (decrease) in short-term borrowings | (872,229) | 58,645 | 217,371
Proceeds from issuance of long-term borrowings | 550,000 | 225,000 | 20,000
Cash dividends paid - common stock | (78,345) | (58,001) | (35,393)
Cancellation of warrants | 0 | (1,530) | 0
Vesting of restricted stock, net of shares held for taxes | (2,301) | (2,908) | (1,567)
Net cash and cash equivalents provided by (used in) financing activities | 405,435 | 615,100 | 795,556
Net increase (decrease) in cash and cash equivalents | 174,833 | 61,826 | 20,136
Cash and cash equivalents at beginning of the period | 261,199 | 199,373 | 179,237
Cash and cash equivalents at end of the period | 436,032 | 261,199 | 199,373
Supplemental schedule of noncash investing and financing activities |  |  |
Issuance of common stock in regard to acquisitions | 499,974 | 794,809 | 0
Assets acquired | 2,849,673 | 3,253,328 | 293
Liabilities assumed | 2,558,063 | 2,873,718 | 5,437
Parent Company |  |  |
Operating activities: |  |  |
Net income | 193,528 | 146,248 | 72,923
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Equity in undistributed net income of subsidiaries | (52,878) | (115,638) | (47,646)
Depreciation of premises and equipment | 424 | 424 | 439
Amortization (accretion) related to acquisition, net | 662 | 636 | 260
Gain on sale of investment | 0 | (1,416) | 0
Issuance of common stock for services | 910 | 914 | 724
Net (increase) decrease in other assets | (3,256) | (584) | (4,167)
Net increase in other liabilities | 4,964 | (4,159) | 5,283
Net cash and cash equivalents provided by operating activities | 144,354 | 26,425 | 27,816
Investing activities: |  |  |
Net increase in premises and equipment | (355) | 0 | (35)
Proceeds from sale of investment | 0 | 3,761 | 0
Proceeds from (payments for) equity method investment | 0 | 0 | 72
Cash paid in acquisitions | (12) | 0 | 0
Cash received in acquisitions | 21,553 | 25,976 | 0
Net cash and cash equivalents provided by (used in) investing activities | 21,186 | 29,737 | 37
Financing activities: |  |  |
Net increase (decrease) in short-term borrowings | (5,000) | 5,000 | 0
Cash dividends paid - common stock | (78,345) | (58,001) | (35,393)
Cancellation of warrants | 0 | (1,530) | 0
Issuance (repurchase) of common stock | (78,292) | 2,347 | 1,037
Vesting of restricted stock, net of shares held for taxes | (2,301) | (2,908) | (1,567)
Net cash and cash equivalents provided by (used in) financing activities | (163,938) | (55,092) | (35,923)
Net increase (decrease) in cash and cash equivalents | 1,602 | 1,070 | (8,070)
Cash and cash equivalents at beginning of the period | 3,681 | 2,611 | 10,681
Cash and cash equivalents at end of the period | 5,283 | 3,681 | 2,611
Supplemental schedule of noncash investing and financing activities |  |  |
Issuance of common stock in regard to acquisitions | 499,974 | 794,809 | 0
Assets acquired | 509,075 | 859,176 | 0
Liabilities assumed | $ 9,089 | $ 64,367 | $ 0

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