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Condensed Financial Information of Parent Company - Schedule of Statements of Cash Flows (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Cash flows from operating activities: |  |  |
Net income | $ 30,059 | $ 34,904 | $ 28,604
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Stock-based compensation expense | 4,139 | 6,732 | 2,859
Other, net | (1,527) | 3,104 | (6,330)
Net cash provided by operating activities | 36,936 | 51,608 | 34,547
Proceeds from sales of securities available-for-sale | 111,583 | 3,838 | 63,774
Proceeds from maturities of securities available-for-sale | 39,233 | 61,209 | 96,951
Cash flows from investing activities: |  |  |
Proceeds from sales of securities available-for-sale | (15,332) | (232,083) | (494,226)
Net decrease (increase) in loans | 68,588 | (122,326) | (68,664)
Net decrease (increase) in payments in advance of funding | 94,914 | (2,348) | (96,864)
Purchase of bank-owned life insurance | 0 | (4,000) | (25,119)
Purchases of premises and equipment, net | (14,324) | (5,866) | (4,369)
Net cash provided by (used in) investing activities | 284,662 | (306,390) | (528,517)
Cash flows from financing activities: |  |  |
Net (increase) decrease in accounts and drafts receivable from customers | (14,872) | (90,787) | 6
Cash dividends paid | (15,959) | (15,442) | (15,446)
Purchase of common shares for treasury | (5,773) | (5,299) | (30,997)
Other financing activities, net | (834) | (594) | (850)
Net cash (used in) provided by financing activities | (150,072) | (59,204) | 338,370
Net increase (decrease) in cash and cash equivalents | 171,526 | (313,986) | (155,600)
Parent Company |  |  |
Cash flows from operating activities: |  |  |
Net income | 30,059 | 34,904 | 28,604
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Equity in undistributed income of subsidiaries | (19,281) | (10,618) | (2,252)
Net change in other assets | (4,427) | (4,640) | (212)
Increase (Decrease) in Other Operating Liabilities | (2,870) | 6,462 | (9,307)
Stock-based compensation expense | 4,139 | 6,732 | 2,859
Other, net | 10,149 | 10,412 | 5,921
Net cash provided by operating activities | 17,769 | 43,252 | 25,613
Proceeds from sales of securities available-for-sale | (86,722) | (3,838) | (63,774)
Proceeds from maturities of securities available-for-sale | (23,032) | (44,566) | (95,787)
Cash flows from investing activities: |  |  |
Proceeds from sales of securities available-for-sale | (15,332) | (45,340) | (385,651)
Net decrease (increase) in loans | 3,977 | (34,295) | 8,799
Net decrease (increase) in payments in advance of funding | 94,914 | (2,347) | (96,864)
Purchase of bank-owned life insurance | 0 | (4,000) | (25,119)
Purchases of premises and equipment, net | (14,262) | (5,851) | (2,233)
Asset acquisition of TouchPoint | 0 | (4,814) | 0
Net cash provided by (used in) investing activities | 179,051 | (48,243) | (341,507)
Cash flows from financing activities: |  |  |
Net (increase) decrease in accounts and drafts receivable from customers | (14,872) | (90,787) | 6
Net increase in accounts and drafts payable | 11,875 | 16,393 | 208,650
Cash dividends paid | (15,959) | (15,442) | (15,446)
Purchase of common shares for treasury | (5,773) | (5,299) | (30,997)
Other financing activities, net | (834) | (594) | (850)
Net cash (used in) provided by financing activities | (25,563) | (95,729) | 161,363
Net increase (decrease) in cash and cash equivalents | 171,257 | (100,720) | (154,531)
Cash and cash equivalents at beginning of year | 31,915 | 132,635 | 287,166
Cash and cash equivalents at end of year | $ 203,172 | $ 31,915 | $ 132,635

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- Definition The net cash outflow or inflow for the increase (decrease) in the beginning and end of period of loan and lease balances which are not originated or purchased specifically for resale. Includes cash payments and proceeds associated with (a) loans held-for-investment, (b) leases held-for-investment, and (c) both. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 230 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481160/942-230-45-1 + Details
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- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-15 + Details
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- Definition Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-15 + Details
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- Definition Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481830/320-10-45-11 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-13 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-11 + Details
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 805 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479581/805-30-50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-13 + Details
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- Definition Amount of cash outflow for payment of premium on corporate-owned life insurance policy, classified as investing activities. Includes, but is not limited to, bank-owned life insurance policy. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-13 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 21C -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-21C + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 13 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-13 + Details
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- Definition Amount of cash inflow from maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481830/320-10-45-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-11 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 12 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-12 + Details
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- Definition Amount of cash inflow (outflow) from financing activities classified as other. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-14 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 45 -Paragraph 15 -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-15 + Details
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- Definition Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481830/320-10-45-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-9 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-12 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-11 + 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 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (a) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 + Details
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