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Document and Entity Information - shares
 9 Months Ended
Sep. 30, 2021
Nov. 01, 2021
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2021  
Document Fiscal Year Focus 2021  
Document Fiscal Period Focus Q3  
Trading Symbol OSUR  
Entity Registrant Name ORASURE TECHNOLOGIES, INC  
Entity Central Index Key 0001116463  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Shell Company false  
Entity Small Business false  
Entity Emerging Growth Company false  
Title of 12(b) Security Common Stock, $0.000001 par value per share  
Security Exchange Name NASDAQ  
Entity File Number 001-16537  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 36-4370966  
Entity Address, Address Line One 220 East First Street  
Entity Address, City or Town Bethlehem  
Entity Address, State or Province PA  
Entity Address, Postal Zip Code 18015  
City Area Code 610  
Local Phone Number 882-1820  
Entity Common Stock, Shares Outstanding   72,038,439
Document Quarterly Report true  
Document Transition Report false