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Goodwill and Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2017 | Sep. 30, 2016
IntangibleAssets [Line Items] |  |
Gross Carrying Amount | $ 40,969 | $ 35,871
Accumulated Amortization | 9,556 | 4,148
INTANGIBLE ASSETS, net of amortization | 31,413 | 31,723
Trademarks And Trade Names - Finite [Member] |  |
IntangibleAssets [Line Items] |  |
Gross Carrying Amount | 4,643 | 3,845
Accumulated Amortization | 440 | 139
INTANGIBLE ASSETS, net of amortization | $ 4,203 | $ 3,706
Trademarks And Trade Names - Finite [Member] | Minimum [Member] |  |
IntangibleAssets [Line Items] |  |
Estimated Useful Lives | 5 years | 5 years
Trademarks And Trade Names - Finite [Member] | Maximum [Member] |  |
IntangibleAssets [Line Items] |  |
Estimated Useful Lives | 20 years | 20 years
Technical Library [Member] |  |
IntangibleAssets [Line Items] |  |
Estimated Useful Lives | 20 years | 20 years
Gross Carrying Amount | $ 400 | $ 400
Accumulated Amortization | 81 | 61
INTANGIBLE ASSETS, net of amortization | 319 | 339
Customer Relationships [Member] |  |
IntangibleAssets [Line Items] |  |
Gross Carrying Amount | 31,115 | 27,414
Accumulated Amortization | 4,741 | 2,003
INTANGIBLE ASSETS, net of amortization | $ 26,374 | $ 25,411
Customer Relationships [Member] | Minimum [Member] |  |
IntangibleAssets [Line Items] |  |
Estimated Useful Lives | 6 years | 6 years
Customer Relationships [Member] | Maximum [Member] |  |
IntangibleAssets [Line Items] |  |
Estimated Useful Lives | 15 years | 15 years
Develeoped Technology [Member] |  |
IntangibleAssets [Line Items] |  |
Estimated Useful Lives | 4 years | 1 year
Gross Carrying Amount | $ 0 | $ 400
Accumulated Amortization | 0 | 358
INTANGIBLE ASSETS, net of amortization | $ 0 | $ 42
Order Backlog [Member] |  |
IntangibleAssets [Line Items] |  |
Estimated Useful Lives | 1 year | 1 year
Gross Carrying Amount | $ 2,412 | $ 1,621
Accumulated Amortization | 2,130 | 545
INTANGIBLE ASSETS, net of amortization | $ 282 | $ 1,076
Construction Contract Value [Member] |  |
IntangibleAssets [Line Items] |  |
Estimated Useful Lives | 1 year | 1 year
Gross Carrying Amount | $ 2,399 | $ 2,191
Accumulated Amortization | 2,164 | 1,042
INTANGIBLE ASSETS, net of amortization | $ 235 | $ 1,149

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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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- 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=66006027&loc=d3e16323-109275 + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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