Name:	us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs.

No definition available.

Name:	us-gaap_BusinessCombinationIntegrationRelatedCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

Name:	us-gaap_GainLossRelatedToLitigationSettlementAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount of loss recognized in the income statement for an event or transaction, that is unusual in nature or occurs infrequently, but not both.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 20

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6365513&loc=d3e15138-107781

Name:	us-gaap_UnusualOrInfrequentItemLossGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

n/a

No definition available.

Name:	xoom_MergerAgreementAbstract
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Represents merger related expenses contingent upon closing of merger.

No definition available.

Name:	xoom_MergerRelatedExpensesContingentUponClosingOfMerger
Namespace Prefix:	xoom_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Represents merger related expenses not contingent upon closing of merger.

No definition available.