Cover Page - USD ($)

12 Months Ended

Dec. 31, 2023

Feb. 23, 2024

Jun. 30, 2023

Cover [Abstract]

Document Type

10-K

Document Annual Report

true

Document Period End Date

Dec. 31, 2023

Current Fiscal Year End Date

--12-31

Document Transition Report

false

Entity File Number

001-39028

Entity Registrant Name

CROSSFIRST BANKSHARES, INC.

Entity Incorporation, State or Country Code

KS

Entity Tax Identification Number

26-3212879

Entity Address, Address Line One

11440 Tomahawk Creek Parkway

Entity Address, City or Town

Leawood

Entity Address, State or Province

KS

Entity Address, Postal Zip Code

66211

City Area Code

913

Local Phone Number

901-4516

Title of 12(b) Security

Common Stock, par value $0.01 per share

Trading Symbol

CFB

Security Exchange Name

NASDAQ

Entity Well-known Seasoned Issuer

No

Entity Voluntary Filers

No

Entity Current Reporting Status

Yes

Entity Interactive Data Current

Yes

Entity Filer Category

Accelerated Filer

Entity Small Business

false

Entity Emerging Growth Company

true

Entity Ex Transition Period

false

ICFR Auditor Attestation Flag

false

Document Financial Statement Error Correction [Flag]

false

Entity Shell Company

false

Entity Public Float

$ 443,326,730

Entity Common Stock, Shares Outstanding

49,345,279

Documents Incorporated by Reference

DOCUMENTS INCORPORATED BY REFERENCE: Part III of this Annual Report on Form 10-K incorporates by reference certain information from the registrant’s definitive proxy statement with respect to its 2024 annual meeting of stockholders, which will be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year to which this Annual Report on Form 10-K relates.

Entity Central Index Key

0001458412

Document Fiscal Year Focus

2023

Document Fiscal Period Focus

FY

Amendment Flag

false

Auditor Name

FORVIS, LLP

Auditor Location

Kansas City, Missouri

Auditor Firm ID

686