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CONDENSED FINANCIAL STATEMENTS OF PARENT COMPANY - Cash Flows (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Cash flows from operating activities: |  |  |  |  |  |  |  |  |  |  |
Net income | $ 8,640 | $ 8,402 | $ 8,481 | $ 7,721 | $ 4,207 | $ 5,015 | $ 6,117 | $ 7,281 | $ 33,244 | $ 22,620 | $ 32,937
Adjustments to reconcile net income to net cash provided by (used in) operating activities: |  |  |  |  |  |  |  |  |  |  |
Net cash provided by operating activities |  |  |  |  |  |  |  |  | 38,173 | 36,403 | 37,722
Cash flows from investing activities: |  |  |  |  |  |  |  |  |  |  |
Net cash provided by (used in) investing activities |  |  |  |  |  |  |  |  | 142,747 | (84,981) | (43,964)
Cash flows from financing activities: |  |  |  |  |  |  |  |  |  |  |
Proceeds from subordinated debt issuance |  |  |  |  |  |  |  |  |  | 40,000 |
Repayments of subordinated debt |  |  |  |  |  |  |  |  |  | (22,000) |
Net cash (used in) provided by financing activities |  |  |  |  |  |  |  |  | (11,823) | 6,734 | 14,311
Net change in cash and cash equivalents |  |  |  |  |  |  |  |  | 169,097 | (41,844) | 8,069
Cash and cash equivalents at beginning of year |  |  |  | 56,910 |  |  |  | 98,754 | 56,910 | 98,754 | 90,685
Cash and cash equivalents at end of year | 226,007 |  |  |  | 56,910 |  |  |  | 226,007 | 56,910 | 98,754
Parent Company |  |  |  |  |  |  |  |  |  |  |
Cash flows from operating activities: |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 33,244 | 22,620 | 32,937
Adjustments to reconcile net income to net cash provided by (used in) operating activities: |  |  |  |  |  |  |  |  |  |  |
Equity in undistributed income of subsidiaries |  |  |  |  |  |  |  |  | (30,153) | (4,845) | (13,333)
Other, net |  |  |  |  |  |  |  |  | 3,840 | (1,040) | (1,457)
Net cash provided by operating activities |  |  |  |  |  |  |  |  | 6,931 | 16,735 | 18,147
Cash flows from investing activities: |  |  |  |  |  |  |  |  |  |  |
Purchase of securities |  |  |  |  |  |  |  |  |  |  | (7)
Capital contribution to subsidiary |  |  |  |  |  |  |  |  |  | (8,000) |
Net cash provided by (used in) investing activities |  |  |  |  |  |  |  |  |  | (8,000) | (7)
Cash flows from financing activities: |  |  |  |  |  |  |  |  |  |  |
Proceeds from subordinated debt issuance |  |  |  |  |  |  |  |  |  | 40,000 |
Repayments of subordinated debt |  |  |  |  |  |  |  |  |  | (17,000) |
Net proceeds from common stock |  |  |  |  |  |  |  |  | 2,192 | 883 | 951
Net proceeds from reissuance of treasury stock |  |  |  |  |  |  |  |  | (14,188) | (22) | 686
Common stock cash dividends paid |  |  |  |  |  |  |  |  | (13,417) | (13,366) | (12,184)
Net cash (used in) provided by financing activities |  |  |  |  |  |  |  |  | (25,413) | 10,495 | (10,547)
Net change in cash and cash equivalents |  |  |  |  |  |  |  |  | (18,482) | 19,230 | 7,593
Cash and cash equivalents at beginning of year |  |  |  | $ 29,223 |  |  |  | $ 9,993 | 29,223 | 9,993 | 2,400
Cash and cash equivalents at end of year | $ 10,741 |  |  |  | $ 29,223 |  |  |  | $ 10,741 | $ 29,223 | $ 9,993

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