Cover - shares	3 Months Ended
	Mar. 31, 2026	May 10, 2026
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2026
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-42965
Entity Registrant Name	Central Bancompany, Inc.
Entity Incorporation, State or Country Code	MO
Entity Tax Identification Number	43-0959114
Entity Address, Address Line One	238 Madison Street
Entity Address, City or Town	Jefferson City
Entity Address, State or Province	MO
Entity Address, Postal Zip Code	65101
City Area Code	573
Local Phone Number	634-1111
Title of 12(b) Security	Class A common stock, par value $0.01 per share
Trading Symbol	CBC
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		239,768,162
Central Index Key	0002065601
Amendment Flag	false
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2026