Document and Entity Information - shares	9 Months Ended
	Apr. 30, 2018	Jun. 05, 2018
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Apr. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q3
Trading Symbol	XCRA
Entity Registrant Name	Xcerra Corporation
Entity Central Index Key	0000357020
Current Fiscal Year End Date	--07-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		54,914,881