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Stockholders' Equity - Required Capital Amounts and Company's Respective Ratios (Detail) $ in Thousands | Sep. 30, 2023 USD ($)
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Parent Company [Member] |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |
Total Capital Amount | $ 1,430,965
Total Capital To Risk Weighted Assets Actual Ratio | 0.169
Capital Required For Capital Adequacy Amount | $ 677,482
Capital Required For Capital Adequacy to Risk Weighted Assets Ratio | 0.08
Capital With Capital Conservation Buffer Amount | $ 889,196
Capital With Capital Conservation To Risk Based Weighted Assets Buffer Ratio | 0.105
Common Equity Tier 1 Risk Based Capital Amount | $ 1,247,907
Common Equity Tier 1 Risk Based Capital To Risk Weighted Assets Ratio | 0.1474
Common Equity Tier 1 Risk Based Capital Required For Capital Adequacy Amount | $ 381,084
Common Equity Tier 1 Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Ratio | 0.045
Common Equity Tier 1 Risk Based Capital With Capital Conservation Buffer Amount | $ 592,797
Common Equity Tier 1 Risk Based Capital With Capital Conservation Buffer To Risk Weighted Assets Ratio | 0.07
Tier 1 Risk Based Capital Amount | $ 1,273,907
Tier 1 Risk Based Capital To Risk Weighted Assets Ratio | 0.1504
Tier 1 Risk Based Capital Required For Capital Adequacy Amount | $ 508,112
Tier 1 Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Ratio | 0.06
Tier 1 Risk Based Capital With Capital Conservation Buffer Amount | $ 719,825
Tier 1 Risk Based Capital With Capital Conservation Buffer To Risk Weighted Assets Ratio | 0.085
Tier 1 Capital Amount | $ 1,273,907
Tier 1 Capital To Quarterly Average Assets Ratio | 0.107
Tier 1 Capital Required For Capital Adequacy Amount | $ 476,200
Tier 1 Capital Required For Capital Adequacy To Quartely Average Assets Ratio | 0.04
BancFirst [Member] |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |
Total Capital Amount | $ 1,189,612
Total Capital To Risk Weighted Assets Actual Ratio | 0.1636
Capital Required For Capital Adequacy Amount | $ 581,616
Capital Required For Capital Adequacy to Risk Weighted Assets Ratio | 0.08
Capital With Capital Conservation Buffer Amount | $ 763,371
Capital With Capital Conservation To Risk Based Weighted Assets Buffer Ratio | 0.105
Capital Required To Be Well Capitalized Amount | $ 727,020
Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio | 0.10
Common Equity Tier 1 Risk Based Capital Amount | $ 1,083,583
Common Equity Tier 1 Risk Based Capital To Risk Weighted Assets Ratio | 0.149
Common Equity Tier 1 Risk Based Capital Required For Capital Adequacy Amount | $ 327,159
Common Equity Tier 1 Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Ratio | 0.045
Common Equity Tier 1 Risk Based Capital With Capital Conservation Buffer Amount | $ 508,914
Common Equity Tier 1 Risk Based Capital With Capital Conservation Buffer To Risk Weighted Assets Ratio | 0.07
Common Equity Tier 1 Risk Based Capital Required To Be Well Capitalized Amount | $ 472,563
Common Equity Tier 1 Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio | 0.065
Tier 1 Risk Based Capital Amount | $ 1,103,583
Tier 1 Risk Based Capital To Risk Weighted Assets Ratio | 0.1518
Tier 1 Risk Based Capital Required For Capital Adequacy Amount | $ 436,212
Tier 1 Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Ratio | 0.06
Tier 1 Risk Based Capital With Capital Conservation Buffer Amount | $ 617,967
Tier 1 Risk Based Capital With Capital Conservation Buffer To Risk Weighted Assets Ratio | 0.085
Tier 1 Risk Based Capital Required To Be Well Capitalized Amount | $ 581,616
Tier 1 Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio | 0.08
Tier 1 Capital Amount | $ 1,103,583
Tier 1 Capital To Quarterly Average Assets Ratio | 0.1085
Tier 1 Capital Required For Capital Adequacy Amount | $ 406,769
Tier 1 Capital Required For Capital Adequacy To Quartely Average Assets Ratio | 0.04
Tier 1 Capital Required To Be Well Capitalized Amount | $ 508,461
Tier 1 Capital Required To Be Well Capitalized To Quartely Average Assets Ratio | 0.05
Pegasus [Member] |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |
Total Capital Amount | $ 143,898
Total Capital To Risk Weighted Assets Actual Ratio | 0.1816
Capital Required For Capital Adequacy Amount | $ 63,389
Capital Required For Capital Adequacy to Risk Weighted Assets Ratio | 0.08
Capital With Capital Conservation Buffer Amount | $ 83,199
Capital With Capital Conservation To Risk Based Weighted Assets Buffer Ratio | 0.105
Capital Required To Be Well Capitalized Amount | $ 79,237
Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio | 0.10
Common Equity Tier 1 Risk Based Capital Amount | $ 135,463
Common Equity Tier 1 Risk Based Capital To Risk Weighted Assets Ratio | 0.171
Common Equity Tier 1 Risk Based Capital Required For Capital Adequacy Amount | $ 35,657
Common Equity Tier 1 Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Ratio | 0.045
Common Equity Tier 1 Risk Based Capital With Capital Conservation Buffer Amount | $ 55,466
Common Equity Tier 1 Risk Based Capital With Capital Conservation Buffer To Risk Weighted Assets Ratio | 0.07
Common Equity Tier 1 Risk Based Capital Required To Be Well Capitalized Amount | $ 51,504
Common Equity Tier 1 Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio | 0.065
Tier 1 Risk Based Capital Amount | $ 135,463
Tier 1 Risk Based Capital To Risk Weighted Assets Ratio | 0.171
Tier 1 Risk Based Capital Required For Capital Adequacy Amount | $ 47,542
Tier 1 Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Ratio | 0.06
Tier 1 Risk Based Capital With Capital Conservation Buffer Amount | $ 67,351
Tier 1 Risk Based Capital With Capital Conservation Buffer To Risk Weighted Assets Ratio | 0.085
Tier 1 Risk Based Capital Required To Be Well Capitalized Amount | $ 63,389
Tier 1 Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio | 0.08
Tier 1 Capital Amount | $ 135,463
Tier 1 Capital To Quarterly Average Assets Ratio | 0.1126
Tier 1 Capital Required For Capital Adequacy Amount | $ 48,117
Tier 1 Capital Required For Capital Adequacy To Quartely Average Assets Ratio | 0.04
Tier 1 Capital Required To Be Well Capitalized Amount | $ 60,146
Tier 1 Capital Required To Be Well Capitalized To Quartely Average Assets Ratio | 0.05
Worthington [Member] |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |
Total Capital Amount | $ 50,731
Total Capital To Risk Weighted Assets Actual Ratio | 0.1292
Capital Required For Capital Adequacy Amount | $ 31,401
Capital Required For Capital Adequacy to Risk Weighted Assets Ratio | 0.08
Capital With Capital Conservation Buffer Amount | $ 41,214
Capital With Capital Conservation To Risk Based Weighted Assets Buffer Ratio | 0.105
Capital Required To Be Well Capitalized Amount | $ 39,251
Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio | 0.10
Common Equity Tier 1 Risk Based Capital Amount | $ 46,814
Common Equity Tier 1 Risk Based Capital To Risk Weighted Assets Ratio | 0.1193
Common Equity Tier 1 Risk Based Capital Required For Capital Adequacy Amount | $ 17,663
Common Equity Tier 1 Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Ratio | 0.045
Common Equity Tier 1 Risk Based Capital With Capital Conservation Buffer Amount | $ 27,476
Common Equity Tier 1 Risk Based Capital With Capital Conservation Buffer To Risk Weighted Assets Ratio | 0.07
Common Equity Tier 1 Risk Based Capital Required To Be Well Capitalized Amount | $ 25,513
Common Equity Tier 1 Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio | 0.065
Tier 1 Risk Based Capital Amount | $ 46,814
Tier 1 Risk Based Capital To Risk Weighted Assets Ratio | 0.1193
Tier 1 Risk Based Capital Required For Capital Adequacy Amount | $ 23,551
Tier 1 Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Ratio | 0.06
Tier 1 Risk Based Capital With Capital Conservation Buffer Amount | $ 33,363
Tier 1 Risk Based Capital With Capital Conservation Buffer To Risk Weighted Assets Ratio | 0.085
Tier 1 Risk Based Capital Required To Be Well Capitalized Amount | $ 31,401
Tier 1 Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio | 0.08
Tier 1 Capital Amount | $ 46,814
Tier 1 Capital To Quarterly Average Assets Ratio | 0.0888
Tier 1 Capital Required For Capital Adequacy Amount | $ 21,086
Tier 1 Capital Required For Capital Adequacy To Quartely Average Assets Ratio | 0.04
Tier 1 Capital Required To Be Well Capitalized Amount | $ 26,358
Tier 1 Capital Required To Be Well Capitalized To Quartely Average Assets Ratio | 0.05

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- Definition Ratio of Tier 1 risk-based capital to risk-weighted assets as defined by regulatory framework. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480696/942-505-50-1 + Details
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