v3.26.1
Cover - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Feb. 26, 2026
Jun. 30, 2025
Document Information [Line Items]      
Document Type 10-K/A    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2025    
Entity File Number 001-42477    
Entity Registrant Name Flowco Holdings Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 99-4382473    
Entity Address, Address Line One 1300 Post Oak Blvd.    
Entity Address, Address Line Two Suite 450    
Entity Address, City or Town Houston    
Entity Address, State or Province TX    
Entity Address, Postal Zip Code 77056    
City Area Code 713    
Local Phone Number 997-4877    
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 Central Index Key 0002035149    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Current Fiscal Year End Date --12-31    
Amendment Flag true    
Entity Public Float     $ 362.9
Entity Voluntary Filers No    
Entity Well-known Seasoned Issuer No    
Document Financial Statement Error Correction [Flag] false    
ICFR Auditor Attestation Flag false    
Documents Incorporated by Reference [Text Block]

DOCUMENTS INCORPORATED BY REFERENCE

Part III of this Annual Report on Form 10-K incorporates certain information by reference from the registrant’s definitive proxy statement for the 2026 annual meeting of stockholders to be filed no later than 120 days after the end of the registrant’s fiscal year.

   
Amendment Description The purpose of this Amendment No. 1 to our Annual Report on Form 10-K for the year ended December 31, 2025, originally filed with the Securities and Exchange Commission (the “SEC”) on February 26, 2026 (the “Original Report”), is to correct an inadvertent omission of certain language from paragraph 4 of Exhibit 31.1, Certification of the Principal Executive Officer, and Exhibit 31.2, Certification of the Principal Financial Officer filed with the Original Report. This Amendment No. 1 contains only the Cover Page, this Explanatory Note and Exhibits 31.1 and 31.2. No other changes have been made to the Original Report. This Amendment No. 1 does not reflect subsequent events occurring after the original filing date of the Original Report or modify or update in any way disclosures made in the Original Report. Accordingly, this Amendment No. 1 should be read in conjunction with the Original Report and our other filings with the SEC.    
Class A Common Stock      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   29,647,189  
Class B Common Stock      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   60,015,566  
New York Stock Exchange      
Document Information [Line Items]      
Title of 12(b) Security Class A common stock, par value $0.0001 per share    
Trading Symbol FLOC    
Security Exchange Name NYSE    
NYSE Texas, Inc.      
Document Information [Line Items]      
Title of 12(b) Security Class A common stock, par value $0.0001 per share    
Trading Symbol FLOC    
Security Exchange Name NYSETX