Document and Entity Information	6 Months Ended
	Jun. 30, 2013
Document Information [Line Items]
Document Type	S-1/A
Amendment Flag	false
Document Period End Date	Jun. 30, 2013
Trading Symbol	XOOM
Entity Registrant Name	XOOM CORP
Entity Central Index Key	0001315657
Entity Filer Category	Non-accelerated Filer