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Acquisition Activities - Summary of PCD loans purchased (Details) - USD ($) $ in Thousands | Oct. 01, 2022 | Sep. 01, 2022
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Bank of Jackson Hole |  |
Business Acquisition [Line Items] |  |
Unpaid principal balance | $ 13,902 |
PCD allowance for credit loss at acquisition | (3,764) |
(Discount) premium on acquired loans | (578) |
Purchase price of PCD loans | 9,560 |
Bank of Jackson Hole | Commercial |  |
Business Acquisition [Line Items] |  |
Unpaid principal balance | 5,061 |
PCD allowance for credit loss at acquisition | (151) |
(Discount) premium on acquired loans | (336) |
Purchase price of PCD loans | 4,574 |
Bank of Jackson Hole | Commercial real estate non-owner occupied |  |
Business Acquisition [Line Items] |  |
Unpaid principal balance | 8,353 |
PCD allowance for credit loss at acquisition | (3,557) |
(Discount) premium on acquired loans | (226) |
Purchase price of PCD loans | 4,570 |
Bank of Jackson Hole | Residential |  |
Business Acquisition [Line Items] |  |
Unpaid principal balance | 476 |
PCD allowance for credit loss at acquisition | (55) |
(Discount) premium on acquired loans | (16) |
Purchase price of PCD loans | 405 |
Bank of Jackson Hole | Consumer |  |
Business Acquisition [Line Items] |  |
Unpaid principal balance | 12 |
PCD allowance for credit loss at acquisition | (1) |
Purchase price of PCD loans | $ 11 |
Rock Canyon Bank |  |
Business Acquisition [Line Items] |  |
Unpaid principal balance |  | $ 13,145
PCD allowance for credit loss at acquisition |  | (2,474)
(Discount) premium on acquired loans |  | (773)
Loans previously charged-off by RCB |  | (2,054)
Purchase price of PCD loans |  | 7,844
Rock Canyon Bank | Commercial |  |
Business Acquisition [Line Items] |  |
Unpaid principal balance |  | 12,079
PCD allowance for credit loss at acquisition |  | (2,257)
(Discount) premium on acquired loans |  | (787)
Loans previously charged-off by RCB |  | (2,051)
Purchase price of PCD loans |  | 6,984
Rock Canyon Bank | Commercial real estate non-owner occupied |  |
Business Acquisition [Line Items] |  |
Unpaid principal balance |  | 220
PCD allowance for credit loss at acquisition |  | (2)
(Discount) premium on acquired loans |  | 19
Purchase price of PCD loans |  | 237
Rock Canyon Bank | Residential |  |
Business Acquisition [Line Items] |  |
Unpaid principal balance |  | 843
PCD allowance for credit loss at acquisition |  | (215)
(Discount) premium on acquired loans |  | (5)
Purchase price of PCD loans |  | 623
Rock Canyon Bank | Consumer |  |
Business Acquisition [Line Items] |  |
Unpaid principal balance |  | 3
Loans previously charged-off by RCB |  | $ (3)

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