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Regulatory Capital - Capital Ratio Requirements under Prompt Corrective Action or Other Regulatory Requirements (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Capital conservation buffer | 2.50% | 2.50%
Consolidated |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Leverage Ratio | 0.097 | 0.093
Common equity risk-based ratio | 0.119 | 0.105
Risk-based capital Ratio | 0.119 | 0.105
Total risk-based capital Ratio | 0.138 | 0.122
Leverage Amount | $ 941,369 | $ 857,403
Common equity risk-based amount | 941,369 | 857,403
Risk-based capital amount | 941,369 | 857,403
Total risk-based capital Amount | $ 1,092,800 | $ 1,000,398
Required to be considered adequately capitalized Ratio, leverage ratio | 0.040 | 0.040
Required to be considered well capitalized Ratio, risk-based capital ratio | 0.070 | 7.0
Required to be considered adequately capitalized Ratio, risk-based capital ratio | 0.085 | 0.085
Required to be considered adequately capitalized Ratio, Total risk-based capital ratio | 0.105 | 0.105
Required to be considered adequately capitalized leverage Amount | $ 386,775 | $ 369,335
Required to be considered adequately capitalized common equity capital amount | 554,325 | 574,339
Required to be considered adequately capitalized risk-based capital Amount | 673,109 | 697,412
Required to be considered adequately capitalized Total risk-based capital Amount | $ 831,487 | $ 861,509
NBH Bank |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Leverage Ratio | 0.089 | 0.086
Common equity risk-based ratio | 0.109 | 0.097
Risk-based capital Ratio | 0.109 | 0.097
Total risk-based capital Ratio | 0.121 | 0.108
Leverage Amount | $ 856,243 | $ 788,462
Common equity risk-based amount | 856,243 | 788,462
Risk-based capital amount | 856,243 | 788,462
Total risk-based capital Amount | $ 952,674 | $ 876,458
Required to be considered well capitalized Ratio, leverage ratio | 0.050 | 0.050
Required to be considered well capitalized Ratio, risk-based common equity capital ratio | 0.065 | 0.065
Required to be considered well capitalized Ratio, risk-based capital ratio | 0.080 | 0.080
Required to be considered well capitalized Ratio, Total risk-based capital ratio | 0.100 | 0.100
Required to be considered well capitalized leverage Amount | $ 481,685 | $ 458,593
Required to be considered well capitalized common equity capital amount | 512,408 | 528,334
Required to be considered well capitalized risk-based capital Amount | 630,656 | 650,257
Required to be considered well capitalized Total risk-based capital Amount | $ 788,319 | $ 812,821
Required to be considered adequately capitalized Ratio, leverage ratio | 0.040 | 0.040
Required to be considered well capitalized Ratio, risk-based capital ratio | 0.070 | 0.070
Required to be considered adequately capitalized Ratio, risk-based capital ratio | 0.085 | 0.085
Required to be considered adequately capitalized Ratio, Total risk-based capital ratio | 0.105 | 0.105
Required to be considered adequately capitalized leverage Amount | $ 385,348 | $ 366,874
Required to be considered adequately capitalized common equity capital amount | 551,824 | 568,975
Required to be considered adequately capitalized risk-based capital Amount | 670,072 | 690,898
Required to be considered adequately capitalized Total risk-based capital Amount | $ 827,735 | $ 853,462
Bank of Jackson Hole |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Leverage Ratio | 0.300 | 0.310
Common equity risk-based ratio | 0.712 | 0.716
Risk-based capital Ratio | 0.712 | 0.716
Total risk-based capital Ratio | 0.712 | 0.716
Leverage Amount | $ 11,609 | $ 11,238
Common equity risk-based amount | 11,609 | 11,238
Risk-based capital amount | 11,609 | 11,238
Total risk-based capital Amount | $ 11,609 | $ 11,238
Required to be considered well capitalized Ratio, leverage ratio | 0.050 | 0.050
Required to be considered well capitalized Ratio, risk-based common equity capital ratio | 0.065 | 0.065
Required to be considered well capitalized Ratio, risk-based capital ratio | 0.080 | 0.080
Required to be considered well capitalized Ratio, Total risk-based capital ratio | 0.100 | 0.100
Required to be considered well capitalized leverage Amount | $ 1,936 | $ 1,373
Required to be considered well capitalized common equity capital amount | 1,059 | 1,020
Required to be considered well capitalized risk-based capital Amount | 1,304 | 1,255
Required to be considered well capitalized Total risk-based capital Amount | $ 1,629 | $ 1,569
Required to be considered adequately capitalized Ratio, leverage ratio | 0.040 | 0.040
Required to be considered well capitalized Ratio, risk-based capital ratio | 0.070 | 0.070
Required to be considered adequately capitalized Ratio, risk-based capital ratio | 0.085 | 0.085
Required to be considered adequately capitalized Ratio, Total risk-based capital ratio | 0.105 | 0.105
Required to be considered adequately capitalized leverage Amount | $ 1,549 | $ 1,099
Required to be considered adequately capitalized common equity capital amount | 1,141 | 1,098
Required to be considered adequately capitalized risk-based capital Amount | 1,385 | 1,333
Required to be considered adequately capitalized Total risk-based capital Amount | $ 1,711 | $ 1,647

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