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REGULATORY CAPITAL REQUIREMENTS (Details) $ in Thousands | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
--- | --- | ---
Total capital to risk-weighted assets: |  |
Actual | $ 2,024,046 | $ 1,904,533
Actual, Ratio | 0.1504 | 0.1458
Minimum for Capital Adequacy Purposes | $ 1,076,652 | $ 1,045,181
Minimum for Capital Adequacy Purposes, Ratio | 0.0800 | 0.0800
Minimum to be Categorized as Well-Capitalized Under Prompt Corrective Action Provisions | $ 1,345,814 | $ 1,306,476
Minimum to be Categorized as Well-Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.1000 | 0.1000
Tier 1 capital to risk-weighted assets: |  |
Actual | $ 1,760,065 | $ 1,650,872
Actual, Ratio | 0.1308 | 0.1264
Minimum for Capital Adequacy Purposes | $ 807,489 | $ 783,886
Minimum for Capital Adequacy Purposes, Ratio | 0.0600 | 0.0600
Minimum to be Categorized as Well-Capitalized Under Prompt Corrective Action Provisions | $ 807,489 | $ 783,886
Minimum to be Categorized as Well-Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.0600 | 0.0600
Tier 1 leverage capital to average assets: |  |
Actual | $ 1,760,065 | $ 1,650,872
Actual, Ratio | 0.1105 | 0.1056
Minimum for Capital Adequacy Purposes | $ 636,913 | $ 625,387
Minimum for Capital Adequacy Purposes, Ratio | 0.0400 | 0.0400
Tier 1 common equity to risk-weighted assets: |  |
Banking Regulation, Common Equity Tier One Risk-Based Capital, Actual | $ 1,673,565 | $ 1,564,372
Banking Regulation, Common Equity Tier One Risk-Based Capital Ratio, Actual | 0.1244 | 0.1197
Banking Regulation, Common Equity Tier One Risk-Based Capital, Capital Adequacy, Minimum | $ 605,616 | $ 587,914
Banking Regulation, Common Equity Tier One Risk-Based Capital Ratio, Capital Adequacy, Minimum | 0.0450 | 0.0450
Banner Bank [Member] |  |
Total capital to risk-weighted assets: |  |
Actual | $ 1,890,438 | $ 1,789,371
Actual, Ratio | 0.1403 | 0.1369
Minimum for Capital Adequacy Purposes | $ 1,077,725 | $ 1,045,273
Minimum for Capital Adequacy Purposes, Ratio | 0.0800 | 0.0800
Minimum to be Categorized as Well-Capitalized Under Prompt Corrective Action Provisions | $ 1,347,157 | $ 1,306,592
Minimum to be Categorized as Well-Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.1000 | 0.1000
Tier 1 capital to risk-weighted assets: |  |
Actual | $ 1,726,457 | $ 1,635,710
Actual, Ratio | 0.1282 | 0.1252
Minimum for Capital Adequacy Purposes | $ 808,294 | $ 783,955
Minimum for Capital Adequacy Purposes, Ratio | 0.0600 | 0.0600
Minimum to be Categorized as Well-Capitalized Under Prompt Corrective Action Provisions | $ 1,077,725 | $ 1,045,273
Minimum to be Categorized as Well-Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.0800 | 0.0800
Tier 1 leverage capital to average assets: |  |
Actual | $ 1,726,457 | $ 1,635,710
Actual, Ratio | 0.1083 | 0.1046
Minimum for Capital Adequacy Purposes | $ 637,392 | $ 625,298
Minimum for Capital Adequacy Purposes, Ratio | 0.0400 | 0.0400
Minimum to be Categorized as Well-Capitalized Under Prompt Corrective Action Provisions | $ 796,740 | $ 781,622
Minimum to be Categorized as Well-Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.0500 | 0.0500
Tier 1 common equity to risk-weighted assets: |  |
Banking Regulation, Common Equity Tier One Risk-Based Capital, Actual | $ 1,726,457 | $ 1,635,710
Banking Regulation, Common Equity Tier One Risk-Based Capital Ratio, Actual | 0.1282 | 0.1252
Banking Regulation, Common Equity Tier One Risk-Based Capital, Capital Adequacy, Minimum | $ 606,221 | $ 587,966
Banking Regulation, Common Equity Tier One Risk-Based Capital Ratio, Capital Adequacy, Minimum | 0.0450 | 0.0450
Banking Regulation, Common Equity Tier One Risk-Based Capital, Well Capitalized, Minimum | $ 875,652 | $ 849,285
Banking Regulation, Common Equity Tier One Risk-Based Capital Ratio, Well Capitalized, Minimum | 0.0650 | 0.0650

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