Stockholders' Equity - Required Capital Amounts and Company's Respective Ratios (Detail) $ in Thousands	Mar. 31, 2025 USD ($)
Parent Company [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital Amount	$ 1,687,961
Total Capital To Risk Weighted Assets Actual Ratio	0.1911
Capital Required For Capital Adequacy Amount	$ 706,663
Capital Required For Capital Adequacy to Risk Weighted Assets Ratio	0.08
Capital With Capital Conservation Buffer Amount	$ 927,495
Capital With Capital Conservation To Risk Based Weighted Assets Buffer Ratio	0.105
Common Equity Tier 1 Risk Based Capital Amount	$ 1,502,014
Common Equity Tier 1 Risk Based Capital To Risk Weighted Assets Ratio	0.17
Common Equity Tier 1 Risk Based Capital Required For Capital Adequacy Amount	$ 397,498
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	$ 618,330
Common Equity Tier 1 Risk Based Capital With Capital Conservation Buffer To Risk Weighted Assets Ratio	0.07
Tier 1 Risk Based Capital Amount	$ 1,528,014
Tier 1 Risk Based Capital To Risk Weighted Assets Ratio	0.173
Tier 1 Risk Based Capital Required For Capital Adequacy Amount	$ 529,997
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	$ 750,830
Tier 1 Risk Based Capital With Capital Conservation Buffer To Risk Weighted Assets Ratio	0.085
Tier 1 Capital Amount	$ 1,528,014
Tier 1 Capital To Quarterly Average Assets Ratio	0.113
Tier 1 Capital Required For Capital Adequacy Amount	$ 541,122
Tier 1 Capital Required For Capital Adequacy To Quarterly Average Assets Ratio	0.04
Banc First [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital Amount	$ 1,273,409
Total Capital To Risk Weighted Assets Actual Ratio	0.1742
Capital Required For Capital Adequacy Amount	$ 584,793
Capital Required For Capital Adequacy to Risk Weighted Assets Ratio	0.08
Capital With Capital Conservation Buffer Amount	$ 767,541
Capital With Capital Conservation To Risk Based Weighted Assets Buffer Ratio	0.105
Capital Required To Be Well Capitalized Amount	$ 730,992
Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio	0.10
Common Equity Tier 1 Risk Based Capital Amount	$ 1,170,053
Common Equity Tier 1 Risk Based Capital To Risk Weighted Assets Ratio	0.1601
Common Equity Tier 1 Risk Based Capital Required For Capital Adequacy Amount	$ 328,946
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	$ 511,694
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	$ 475,145
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	$ 1,190,053
Tier 1 Risk Based Capital To Risk Weighted Assets Ratio	0.1628
Tier 1 Risk Based Capital Required For Capital Adequacy Amount	$ 438,595
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	$ 621,343
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	$ 584,793
Tier 1 Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio	0.08
Tier 1 Capital Amount	$ 1,190,053
Tier 1 Capital To Quarterly Average Assets Ratio	0.1036
Tier 1 Capital Required For Capital Adequacy Amount	$ 459,297
Tier 1 Capital Required For Capital Adequacy To Quarterly Average Assets Ratio	0.04
Tier 1 Capital Required To Be Well Capitalized Amount	$ 574,121
Tier 1 Capital Required To Be Well Capitalized To Quarterly Average Assets Ratio	0.05
Pegasus [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital Amount	$ 160,653
Total Capital To Risk Weighted Assets Actual Ratio	0.1666
Capital Required For Capital Adequacy Amount	$ 77,151
Capital Required For Capital Adequacy to Risk Weighted Assets Ratio	0.08
Capital With Capital Conservation Buffer Amount	$ 101,261
Capital With Capital Conservation To Risk Based Weighted Assets Buffer Ratio	0.105
Capital Required To Be Well Capitalized Amount	$ 96,439
Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio	0.10
Common Equity Tier 1 Risk Based Capital Amount	$ 150,762
Common Equity Tier 1 Risk Based Capital To Risk Weighted Assets Ratio	0.1563
Common Equity Tier 1 Risk Based Capital Required For Capital Adequacy Amount	$ 43,398
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	$ 67,507
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	$ 62,686
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	$ 150,762
Tier 1 Risk Based Capital To Risk Weighted Assets Ratio	0.1563
Tier 1 Risk Based Capital Required For Capital Adequacy Amount	$ 57,864
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	$ 81,973
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	$ 77,151
Tier 1 Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio	0.08
Tier 1 Capital Amount	$ 150,762
Tier 1 Capital To Quarterly Average Assets Ratio	0.1111
Tier 1 Capital Required For Capital Adequacy Amount	$ 54,274
Tier 1 Capital Required For Capital Adequacy To Quarterly Average Assets Ratio	0.04
Tier 1 Capital Required To Be Well Capitalized Amount	$ 67,843
Tier 1 Capital Required To Be Well Capitalized To Quarterly Average Assets Ratio	0.05
Worthington [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital Amount	$ 56,901
Total Capital To Risk Weighted Assets Actual Ratio	0.121
Capital Required For Capital Adequacy Amount	$ 37,625
Capital Required For Capital Adequacy to Risk Weighted Assets Ratio	0.08
Capital With Capital Conservation Buffer Amount	$ 49,383
Capital With Capital Conservation To Risk Based Weighted Assets Buffer Ratio	0.105
Capital Required To Be Well Capitalized Amount	$ 47,032
Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio	0.10
Common Equity Tier 1 Risk Based Capital Amount	$ 52,561
Common Equity Tier 1 Risk Based Capital To Risk Weighted Assets Ratio	0.1118
Common Equity Tier 1 Risk Based Capital Required For Capital Adequacy Amount	$ 21,164
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	$ 32,922
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	$ 30,571
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	$ 52,561
Tier 1 Risk Based Capital To Risk Weighted Assets Ratio	0.1118
Tier 1 Risk Based Capital Required For Capital Adequacy Amount	$ 28,219
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	$ 39,977
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	$ 37,625
Tier 1 Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets Ratio	0.08
Tier 1 Capital Amount	$ 52,561
Tier 1 Capital To Quarterly Average Assets Ratio	0.0851
Tier 1 Capital Required For Capital Adequacy Amount	$ 24,699
Tier 1 Capital Required For Capital Adequacy To Quarterly Average Assets Ratio	0.04
Tier 1 Capital Required To Be Well Capitalized Amount	$ 30,873
Tier 1 Capital Required To Be Well Capitalized To Quarterly Average Assets Ratio	0.05

Capital with capital conservation buffer.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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