Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Oct. 27, 2017
Document And Entity Information [Abstract]
Entity Registrant Name	QUIDEL CORP /DE/
Entity Central Index Key	0000353569
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Name	QDEL
Document Type	10-Q
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus (Q1,Q2,Q3,FY)	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		33,996,891