Supporting Financial Information - Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2016	Sep. 30, 2016
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 324
Finite-Lived Intangible Assets, Accumulated Amortization	(440)
Goodwill, Gross	25,989	$ 34,745
Goodwill, Period Increase (Decrease)	(8,756)
Intangible Assets, Gross (Excluding Goodwill)	42,438	42,304
Intangible Assets, Including Goodwill, Measurement Period Adjustments	250
Customer Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	300
Finite-Lived Intangible Assets, Accumulated Amortization	(415)
Finite-Lived Intangible Assets, Gross	15,518	6,254
Finite-Lived Intangible Assets, Translation and Purchase Accounting Adjustments	9,379
Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	45
Finite-Lived Intangible Assets, Accumulated Amortization	(12)
Finite-Lived Intangible Assets, Gross	448	1,305
Finite-Lived Intangible Assets, Translation and Purchase Accounting Adjustments	(890)
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	(21)
Finite-Lived Intangible Assets, Accumulated Amortization	(13)
Finite-Lived Intangible Assets, Gross	483	$ 0
Finite-Lived Intangible Assets, Translation and Purchase Accounting Adjustments	$ 517