Acquisitions (Details) (Salvage vehicle auction business and auction platform, USD $) In Thousands, unless otherwise specified	Jul. 31, 2013
Salvage vehicle auction business and auction platform
Business Acquisition [Line Items]
Total cash paid, net of cash acquired	$ 84,022
Contingent consideration	3,869
Total acquisition price	87,891
Allocation of the acquisition price:
Accounts receivable and prepaid expenses	15,348
Deferred income taxes	5,890
Vehicle pooling costs	1,187
Property and equipment	21,158
Inventory	594
Intangible assets	14,922
Goodwill	73,414
Liabilities assumed	(44,622)
Fair value of net assets and liabilities acquired	$ 87,891

The amount of acquisition cost of a business combination allocated to accounts receivable and prepaid expenses.

No definition available.

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- Definition

Represents total cash paid to shareholders of acquired entities net of cash acquired.

+ References

No definition available.

+ Details

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- Definition

Represents business combination deferred income taxes.

+ References

No definition available.

+ Details

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- Definition

Represents business combination vehicle pooling costs.

+ References

No definition available.

+ Details

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- Details

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- Definition

Amount of asset recognized arising from contingent consideration in a business combination.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 35

-Paragraph 1

-Subparagraph b

-URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 25

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6411-128476

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- Definition

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

+ References

+ Details

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- Definition

The amount of inventory recognized as of the acquisition date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 55

-Paragraph 37

-URI http://asc.fasb.org/extlink&oid=25498275&loc=d3e2207-128464

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- Definition

Amount of liabilities assumed at the acquisition date.

+ References

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- Definition

Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

+ References

+ Details

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- Definition

The amount of property, plant, and equipment recognized as of the acquisition date.

+ References

+ Details

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- Definition

Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

+ References

+ Details

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