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Document and Entity Information - shares
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2021
Oct. 25, 2021
Cover [Abstract]      
Entity Registrant Name   DRIL-QUIP, INC.  
Entity Central Index Key   0001042893  
Trading Symbol   DRQ  
Current Fiscal Year End Date   --12-31  
Entity Filer Category   Large Accelerated Filer  
Document Type   10-Q  
Document Period End Date Sep. 30, 2021    
Document Fiscal Year Focus   2021  
Document Fiscal Period Focus Q3    
Amendment Flag   false  
Entity Common Stock Shares Outstanding     35,385,885
Entity Emerging Growth Company   false  
Entity Small Business   false  
Entity Current Reporting Status   Yes  
Entity Interactive Data Current   Yes  
Entity Shell Company   false  
Entity File Number   001-13439  
Entity Tax Identification Number   74-2162088  
Entity Address, Address Line One   6401 N. ELDRIDGE PARKWAY  
Entity Address, City or Town   HOUSTON  
Entity Address, State or Province   TX  
Entity Address, Country   US  
Entity Address, Postal Zip Code   77041  
City Area Code   713  
Local Phone Number   939-7711  
Entity Incorporation, State or Country Code   DE  
Document Quarterly Report   true  
Document Transition Report   false  
Title of each class   Common Stock, $0.01 par value per share  
Security Exchange Name   NYSE