Equity Securities and Stock-Based Compensation (Details 3) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2014
Equity Securities and Stock-based Compensation
Maximum shares to be issued upon exercise of options and other awards	4,103
Weighted-average exercise price of outstanding options and other awards	$ 7.98
Shares remaining available for future issuance under existing equity compensation plans	3,912
Options outstanding not covered under any existing equity compensation plan	0
Plans Approved by Stockholders
Equity Securities and Stock-based Compensation
Maximum shares to be issued upon exercise of options and other awards	3,811
Weighted-average exercise price of outstanding options and other awards	$ 7.51
Shares remaining available for future issuance under existing equity compensation plans	3,912
Plans Not Approved by Stockholders
Equity Securities and Stock-based Compensation
Maximum shares to be issued upon exercise of options and other awards	292
Weighted-average exercise price of outstanding options and other awards	$ 14.14
Shares remaining available for future issuance under existing equity compensation plans	0