v3.26.1
Document and Entity Information Cover - $ / shares
 3 Months Ended
Mar. 31, 2026
Apr. 30, 2026
Dec. 31, 2025
Cover [Abstract]      
Document type 10-Q    
Document quarterly report true    
Document period end date Mar. 31, 2026    
Document transition report false    
Commission file number 001-34568    
Entity registrant name OPENLANE, Inc.    
Entity incorporation state DE    
Entity tax identification number 20-8744739    
Entity address, address line one 11299 N. Illinois Street    
Entity address, address line two Suite 500    
Entity address, city Carmel    
Entity address, state IN    
Entity address, postal zip code 46032    
City area code 800    
Local phone number 923-3725    
Title of 12(b) security Common Stock, par value $0.01 per share    
Trading symbol OPLN    
Security exchange name NYSE    
Entity current reporting status Yes    
Entity interactive data current Yes    
Entity filer category Large Accelerated Filer    
Entity small business false    
Entity emerging growth company false    
Entity shell company false    
Entity common stock, shares outstanding   105,946,106  
Common stock, par value (in dollars per share) $ 0.01   $ 0.01
Entity central index key 0001395942    
Current fiscal year end date --12-31    
Document fiscal year focus 2026    
Document fiscal period focus Q1    
Amendment flag false