Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2020	Feb. 24, 2021	Jun. 30, 2020
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Entity Registrant Name	DRIL-QUIP, INC.
Entity Central Index Key	0001042893
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Interactive Data Current	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Well-known Seasoned Issuer	Yes
Entity Public Float			$ 1,031,500,000
Entity Common Stock, Shares Outstanding		35,428,778
Entity Shell Company	false
Entity Small Business	false
Entity Emerging Growth Company	false
Title of 12(b) Security	Common Stock, $.01 par value per share
Trading Symbol	DRQ
Security Exchange Name	NYSE
Entity File Number	001-13439
Entity Incorporation, State or Country Code	DE
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
Document Annual Report	true
Document Transition Report	false
ICFR Auditor Attestation Flag	true
Documents Incorporated by Reference	Portions of the Registrant’s Proxy Statement for its 2020 Annual Meeting of Stockholders to be filed pursuant to Regulation 14A are incorporated by reference in Part III of this Form 10-K