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Loans and Allowance for Loan Losses - Allowance for Loan Losses Activity by Portfolio Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Allowances for Loan Losses [Roll Forward] |  |  |  |
Balance at beginning of period | $ 35,449 | $ 42,913 | $ 35,273 | $ 49,006
Loans charged-off | (686) | (940) | (1,720) | (2,262)
Recoveries of loans charged-off | 449 | 437 | 1,505 | 1,525
Net loans (charged-off) recovered | (237) | (503) | (215) | (737)
Provision for (reversal of) loan losses | 1,294 | (4,388) | 1,448 | (10,247)
Balance at end of period | 36,506 | 38,022 | 36,506 | 38,022
Construction Real Estate Loans |  |  |  |
Allowances for Loan Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 3,399 | 8,018 | 3,787 | 6,490
Loans charged-off | 0 | 0 | 0 | 0
Recoveries of loans charged-off | 0 | 1 | 1 | 2
Net loans (charged-off) recovered | 0 | 1 | 1 | 2
Provision for (reversal of) loan losses | 136 | (3,036) | (253) | (1,509)
Balance at end of period | 3,535 | 4,983 | 3,535 | 4,983
1-4 Family Residential Real Estate Loans |  |  |  |
Allowances for Loan Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 2,024 | 2,520 | 1,866 | 2,270
Loans charged-off | (66) | (35) | (66) | (136)
Recoveries of loans charged-off | 4 | 4 | 96 | 71
Net loans (charged-off) recovered | (62) | (31) | 30 | (65)
Provision for (reversal of) loan losses | 44 | (543) | 110 | (259)
Balance at end of period | 2,006 | 1,946 | 2,006 | 1,946
Commercial Real Estate Loans |  |  |  |
Allowances for Loan Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 27,221 | 28,930 | 26,980 | 35,709
Loans charged-off | 0 | 0 | 0 | 0
Recoveries of loans charged-off | 0 | 12 | 81 | 13
Net loans (charged-off) recovered | 0 | 12 | 81 | 13
Provision for (reversal of) loan losses | 1,273 | (684) | 1,433 | (7,464)
Balance at end of period | 28,494 | 28,258 | 28,494 | 28,258
Commercial loans |  |  |  |
Allowances for Loan Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 2,558 | 3,097 | 2,397 | 4,107
Loans charged-off | (192) | (508) | (369) | (943)
Recoveries of loans charged-off | 139 | 74 | 469 | 535
Net loans (charged-off) recovered | (53) | (434) | 100 | (408)
Provision for (reversal of) loan losses | (272) | (103) | (264) | (1,139)
Balance at end of period | 2,233 | 2,560 | 2,233 | 2,560
Municipal loans |  |  |  |
Allowances for Loan Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 46 | 47 | 47 | 46
Loans charged-off | 0 | 0 | 0 | 0
Recoveries of loans charged-off | 0 | 0 | 0 | 0
Net loans (charged-off) recovered | 0 | 0 | 0 | 0
Provision for (reversal of) loan losses | (2) | (1) | (3) | 0
Balance at end of period | 44 | 46 | 44 | 46
Loans to individuals |  |  |  |
Allowances for Loan Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 201 | 301 | 196 | 384
Loans charged-off | (428) | (397) | (1,285) | (1,183)
Recoveries of loans charged-off | 306 | 346 | 858 | 904
Net loans (charged-off) recovered | (122) | (51) | (427) | (279)
Provision for (reversal of) loan losses | 115 | (21) | 425 | 124
Balance at end of period | $ 194 | $ 229 | $ 194 | $ 229

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- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 + Details
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- Definition Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 + Details
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