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Earnings per Share - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Earnings Per Share [Line Items]
Convertible preferred stock par value	$ 0.001		$ 0.001		$ 0.001
Assumed Average Market Price Per Share Exercise Of Warrants Treasury Method	$ 16.85	$ 16.92	$ 17.00	$ 15.44
Series A Convertible Preferred Stock [Member]
Earnings Per Share [Line Items]
Convertible preferred stock par value	$ 0.001		$ 0.001

X

- Definition

Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.28)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29

-Article 5

+ Details

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X

- Definition

The assumed average market price per share used when calculating the dilutive impact on earnings per share using the Treasury method.

+ References

No definition available.

+ Details

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Namespace Prefix:	xpo_
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X

- Details

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