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Allowance for Credit Losses - Summary of Company's Allowance for Loan Losses ("All") and Recorded Investment in Loans (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | $ 92,581 | $ 50,860 | $ 89,553 | $ 49,694
Day 1 CECL provision expense |  | 5,201 |  | 5,201
Purchase credit deteriorated ("PCD") allowance for credit loss at acquisition |  | 2,474 |  | 2,474
Charge-offs | (540) | (253) | (1,218) | (1,338)
Recoveries | 280 | 66 | 386 | 256
Provision expense (release) for credit losses | 1,125 | 7,275 | 4,725 | 9,336
Ending balance | 93,446 | 65,623 | 93,446 | 65,623
Commercial Portfolio Segment [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 42,058 | 32,011 | 37,608 | 31,256
Day 1 CECL provision expense |  | 2,261 |  | 2,261
Purchase credit deteriorated ("PCD") allowance for credit loss at acquisition |  | 2,257 |  | 2,257
Charge-offs | (239) |  | (242) | (754)
Recoveries | 241 | 40 | 286 | 115
Provision expense (release) for credit losses | 3,231 | 1,651 | 7,639 | 3,085
Ending balance | 45,291 | 38,220 | 45,291 | 38,220
Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 30,768 | 8,426 | 32,050 | 10,033
Day 1 CECL provision expense |  | 2,327 |  | 2,327
Purchase credit deteriorated ("PCD") allowance for credit loss at acquisition |  | 2 |  | 2
Recoveries | 1 |  | 3 | 21
Provision expense (release) for credit losses | (2,301) | 3,419 | (3,585) | 1,791
Ending balance | 28,468 | 14,174 | 28,468 | 14,174
Residential Portfolio Segment [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 19,331 | 10,072 | 19,306 | 8,056
Day 1 CECL provision expense |  | 596 |  | 596
Purchase credit deteriorated ("PCD") allowance for credit loss at acquisition |  | 215 |  | 215
Charge-offs |  |  | (46) | (2)
Recoveries | 7 | 3 | 19 | 49
Provision expense (release) for credit losses | (47) | 1,988 | 12 | 3,960
Ending balance | 19,291 | 12,874 | 19,291 | 12,874
Consumer Loan [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 424 | 351 | 589 | 349
Day 1 CECL provision expense |  | 17 |  | 17
Charge-offs | (301) | (253) | (930) | (582)
Recoveries | 31 | 23 | 78 | 71
Provision expense (release) for credit losses | 242 | 217 | 659 | 500
Ending balance | $ 396 | $ 355 | $ 396 | $ 355

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- Definition Amount of expense related to estimated loss from Day 1 CECL. + References No definition available. + Details
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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 -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 + 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 -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 + Details
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