Earnout Liability (Details) $ in Thousands	6 Months Ended
	Mar. 31, 2017 USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance
Initial value of earnout liability	9,575
Change in fair value of earnout liability	(879)
Foreign currency translation	24
Balance	$ 10,478