Segment Data and Related Information (Schedule of Revenue by Geographic Region) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Segment Reporting Information [Line Items]
Revenue	$ 44,582	$ 33,473	$ 131,040	$ 125,056
United States
Segment Reporting Information [Line Items]
Revenue	26,598	21,674	81,711	84,665
Asia
Segment Reporting Information [Line Items]
Revenue	10,064	10,012	31,444	27,737
Europe
Segment Reporting Information [Line Items]
Revenue	6,837	1,605	16,257	11,710
Other
Segment Reporting Information [Line Items]
Revenue	$ 1,083	$ 182	$ 1,628	$ 944