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Goodwill and Other Intangible Assets - Definite-lived Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Sep. 30, 2017
Finite-Lived Intangible Assets [Line Items]
Carrying Amount	$ 47,675	$ 36,548
Accumulated Amortization	(23,055)	(17,663)
Net Book Value	24,620	18,885
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Carrying Amount	3,626	3,659
Accumulated Amortization	(3,314)	(3,102)
Net Book Value	312	557
Internally developed software
Finite-Lived Intangible Assets [Line Items]
Carrying Amount	40,223	29,741
Accumulated Amortization	(17,512)	(12,597)
Net Book Value	22,711	17,144
Other
Finite-Lived Intangible Assets [Line Items]
Carrying Amount	3,826	3,148
Accumulated Amortization	(2,229)	(1,964)
Net Book Value	$ 1,597	$ 1,184

X

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
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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/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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