DOCUMENT AND ENTITY INFORMATION - shares	6 Months Ended
	Jun. 30, 2016	Jul. 27, 2016
Document And Entity Information [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	Jun. 30, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding (shares)		37,570,727