v3.26.1
Cover - shares
 6 Months Ended
Jun. 30, 2026
Jul. 31, 2026
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2026  
Document Transition Report false  
Entity File Number 001-38609  
Entity Registrant Name KLX Energy Services Holdings, Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 36-4904146  
Entity Address, Address Line One 3040 Post Oak Boulevard  
Entity Address, Address Line Two 15th Floor  
Entity Address, City or Town Houston  
Entity Address, State or Province TX  
Entity Address, Postal Zip Code 77056  
City Area Code 832  
Local Phone Number 844-1015  
Title of 12(b) Security Common Stock, $0.01 Par Value  
Trading Symbol KLXE  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   21,273,059
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Entity Central Index Key 0001738827  
Amendment Flag false