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Regulatory Capital Matters - Schedule of Actual and required capital amounts (Details) $ in Thousands | Mar. 31, 2025 USD ($) | Dec. 31, 2024 USD ($)
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Parent Company |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Total risk-based capital to risk-weighted assets, Actual Amount | $ 1,154,346 | $ 1,128,334
Total risk-based capital to risk-weighted assets, Actual Ratio | 0.1552 | 0.1542
Total risk-based capital to risk-weighted assets, For Capital Adequacy Purposes, Amount | $ 595,207 | $ 585,567
Total risk-based capital to risk-weighted assets, For Capital Adequacy Purposes, Ratio | 0.0800 | 0.0800
Tier 1 risk-based capital to risk-weighted assets, Actual Amount | $ 986,280 | $ 964,517
Tier 1 risk-based capital to risk-weighted assets, Actual Ratio | 0.1326 | 0.1318
Tier 1 risk-based capital to risk-weighted assets, For Capital Adequacy Purposes, Amount | $ 446,405 | $ 439,175
Tier 1 risk-based capital to risk-weighted assets, For Capital Adequacy Purposes, Ratio | 0.0600 | 0.0600
Common Equity Tier 1 (CET 1) to risk-weighted assets, Actual Amount | $ 986,280 | $ 964,517
Common Equity Tier 1 (CET 1) to risk-weighted assets, Actual Ratio | 0.1326 | 0.1318
Common Equity Tier 1 (CET 1) to risk-weighted assets, For Capital Adequacy Purposes, Amount | $ 334,804 | $ 329,381
Common Equity Tier 1 (CET 1) to risk-weighted assets, For Capital Adequacy Purposes, Ratio | 0.0450 | 0.0450
Tier 1 leverage capital to average assets, Actual Amount | $ 986,280 | $ 964,517
Tier 1 leverage capital to average assets, Actual Ratio | 0.1247 | 0.1211
Tier 1 leverage capital to average assets, For Capital Adequacy Purposes, Amount | $ 316,255 | $ 318,646
Tier 1 leverage capital to average assets, For Capital Adequacy Purposes, Ratio | 0.0400 | 0.0400
Bank |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Total risk-based capital to risk-weighted assets, Actual Amount | $ 1,046,831 | $ 1,018,866
Total risk-based capital to risk-weighted assets, Actual Ratio | 0.1409 | 0.1394
Total risk-based capital to risk-weighted assets, For Capital Adequacy Purposes, Amount | $ 594,278 | $ 584,594
Total risk-based capital to risk-weighted assets, For Capital Adequacy Purposes, Ratio | 0.0800 | 0.0800
Total risk-based capital to risk-weighted assets, To be Well-Capitalized under Prompt Corrective Action Provisions, Amount | $ 742,847 | $ 730,742
Total risk-based capital to risk-weighted assets, To be Well-Capitalized under Prompt Corrective Action Provisions, Ratio | 0.1000 | 0.1000
Tier 1 risk-based capital to risk-weighted assets, Actual Amount | $ 954,734 | $ 930,890
Tier 1 risk-based capital to risk-weighted assets, Actual Ratio | 0.1285 | 0.1274
Tier 1 risk-based capital to risk-weighted assets, For Capital Adequacy Purposes, Amount | $ 445,708 | $ 438,445
Tier 1 risk-based capital to risk-weighted assets, For Capital Adequacy Purposes, Ratio | 0.0600 | 0.0600
Tier 1 risk-based capital to risk-weighted assets, To be Well-Capitalized under Prompt Corrective Action Provisions, Amount | $ 594,278 | $ 584,594
Tier 1 risk-based capital to risk-weighted assets, To be Well-Capitalized under Prompt Corrective Action Provisions, Ratio | 0.0800 | 0.0800
Common Equity Tier 1 (CET 1) to risk-weighted assets, Actual Amount | $ 954,734 | $ 930,890
Common Equity Tier 1 (CET 1) to risk-weighted assets, Actual Ratio | 0.1285 | 0.1274
Common Equity Tier 1 (CET 1) to risk-weighted assets, For Capital Adequacy Purposes, Amount | $ 334,281 | $ 328,834
Common Equity Tier 1 (CET 1) to risk-weighted assets, For Capital Adequacy Purposes, Ratio | 0.0450 | 0.0450
Common Equity Tier 1 (CET 1) to risk-weighted assets, To be Well-Capitalized under Prompt Corrective Action Provisions, Amount | $ 482,851 | $ 474,982
Common Equity Tier 1 (CET 1) to risk-weighted assets, To be Well-Capitalized under Prompt Corrective Action Provisions, Ratio | 0.0650 | 0.0650
Tier 1 leverage capital to average assets, Actual Amount | $ 954,734 | $ 930,890
Tier 1 leverage capital to average assets, Actual Ratio | 0.1208 | 0.1169
Tier 1 leverage capital to average assets, For Capital Adequacy Purposes, Amount | $ 316,197 | $ 318,647
Tier 1 leverage capital to average assets, For Capital Adequacy Purposes, Ratio | 0.0400 | 0.0400
Tier 1 leverage capital to average assets, To be Well-Capitalized under Prompt Corrective Action Provisions, Amount | $ 395,246 | $ 398,308
Tier 1 leverage capital to average assets, To be Well-Capitalized under Prompt Corrective Action Provisions, Ratio | 0.0500 | 0.0500

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