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Intangible Assets by Major Class Subject to Amortization (Detail) (USD $) In Thousands, unless otherwise specified | 9 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2013 | Sep. 30, 2012
Finite-Lived Intangible Assets [Line Items] |  |
Original Cost | $ 19,400 | $ 19,400
Accumulated Amortization | 6,317 | 4,773
Net Book Value | 13,083 | 14,627
Trade name |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated Useful Life | 10 years | 10 years
Original Cost | 1,900 | 1,900
Accumulated Amortization | 397 | 254
Net Book Value | 1,503 | 1,646
Non-compete agreement |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated Useful Life | 5 years | 5 years
Original Cost | 1,500 | 1,500
Accumulated Amortization | 589 | 364
Net Book Value | 911 | 1,136
Below market lease |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated Useful Life | 5 years | 5 years
Original Cost | 900 | 900
Accumulated Amortization | 460 | 325
Net Book Value | 440 | 575
Customer relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated Useful Life | 10 years | 10 years
Original Cost | 13,000 | 13,000
Accumulated Amortization | 2,771 | 1,796
Net Book Value | 10,229 | 11,204
Order backlog |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated Useful Life | 1 year | 1 year
Original Cost | 2,100 | 2,100
Accumulated Amortization | 2,100 | 2,034
Net Book Value | $ 0 | $ 66

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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