Consolidated Statements of Operations and Comprehensive Loss (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Revenue	$ 200,928	$ 191,278	$ 176,356
Cost of revenue	158,165	140,617	182,666
Gross profit (loss)	42,763	50,661	(6,310)
Operating expenses (income):
Selling, general, and administrative	35,582	42,549	46,775
Research and development	32,853	29,538	27,100
Impairments	8,000	0	60,781
Litigation settlements, net	(1,145)	0	0
Total operating expenses	75,290	72,087	134,656
Operating loss	(32,527)	(21,426)	(140,966)
Other income (expense):
Interest income	2	24	84
Interest expense	(642)	(439)	(542)
Foreign exchange gain (loss)	735	(1,008)	(154)
Loss from equity method investment	(1,842)	0	0
Change in fair value of financial instruments	70	(475)	0
Impairment of investment	0	0	(367)
Gain from the sale of an unconsolidated affiliate	0	0	3,144
Other expense	(15)	(370)	0
Total other income (expense)	(1,692)	(2,268)	2,165
Net loss	(34,219)	(23,694)	(138,801)
Foreign exchange translation adjustment	135	42	186
Comprehensive loss	$ (34,084)	$ (23,652)	$ (138,615)
Per share data:
Net loss per basic share	$ (0.38)	$ (0.28)	$ (1.75)
Net loss per diluted share	$ (0.38)	$ (0.28)	$ (1.75)
Weighted-average number of basic shares outstanding	88,910	83,166	79,140
Weighted-average number of diluted shares outstanding	88,910	83,166	79,140