Geographical Information (Tables)

12 Months Ended

Sep. 30, 2017

Segment Reporting [Abstract]

Schedule of Revenue by Geographic Region

The following tables set forth revenue by geographic region with revenue assigned to geographic regions based on our customers’ billing address.

Revenue by Geographic Region	For the Fiscal Years Ended September 30,
(in thousands)	2017		2016		2015
United States	$	98,520	$	66,436	$	55,736
Asia	16,713		17,401		16,885
Europe	7,015		7,618		8,249
Other	647		543		815
Total revenue	$	122,895	$	91,998	$	81,685