XML 93 R58.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Changes in Carrying Amount of Goodwill by Reportable Segment (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |  | 12 Months Ended |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 31, 2014 | Jul. 31, 2013 | Jul. 31, 2014 | Jul. 31, 2014 Towables | Jul. 31, 2014 Towables | Jul. 31, 2012 Towables | Jul. 31, 2014 Motorized | Jul. 31, 2012 Motorized | Jul. 31, 2013 Buses
Goodwill [Line Items] |  |  |  |  |  |  |  |  |
Goodwill |  | $ 262,461 | $ 273,831 |  | $ 256,579 | $ 238,103 | $ 17,252 | $ 17,252 | $ 7,106
Accumulated impairment charges |  | (17,252) | (17,252) |  |  |  | (17,252) | (17,252) |
Goodwill, Beginning Balance | 238,103 | 245,209 |  | 238,103 |  | 238,103 |  |  | 7,106
Goodwill acquired | 18,476 | 5,263 |  | 18,476 |  |  |  |  | 5,263
Impairment charges - discontinued operations |  | (6,810) |  |  |  |  |  |  | (6,810)
Discontinued operations reclassification |  | (5,559) |  |  |  |  |  |  | (5,559)
Goodwill, Ending Balance | $ 256,579 | $ 238,103 |  | $ 256,579 |  | $ 238,103 |  |  |

X
- Definition Disposal Group Including Discontinued Operation Impairment Of Goodwill + References No definition available. + Details
Name: | tho_DisposalGroupIncludingDiscontinuedOperationImpairmentOfGoodwill
Namespace Prefix: | tho_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Goodwill Related To Discontinued Operations + References No definition available. + Details
Name: | tho_GoodwillRelatedToDiscontinuedOperations
Namespace Prefix: | tho_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
Name: | us-gaap_Goodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillAcquiredDuringPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a,h) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a,h) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_GoodwillLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration