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Commitments And Contingencies | 12 Months Ended
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Sep. 30, 2011
Commitments And Contingencies [Abstract] |
Commitments And Contingencies | 9. Commitments and Contingencies The following table presents a summary of our contractual obligations and commitments as of September 30, 2011:
|  | Payments Due By Period |
|  | Fiscal 2012 |  |  | Fiscal 2013 |  |  | Fiscal 2014 |  |  | Fiscal 2015 |  |  | Fiscal 2016 |  |  | Thereafter |  |  | Total |
|  | (in thousands) |
Operating leases (1) |  | $ | 10,294 |  |  | $ | 9,486 |  |  | $ | 8,391 |  |  | $ | 6,006 |  |  | $ | 4,949 |  |  | $ | 5,048 |  |  | $ | 44,174 |
Purchase obligations (2) |  |  | 1,900 |  |  |  | 1,463 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 3,363 |
Total |  | $ | 12,194 |  |  | $ | 10,949 |  |  | $ | 8,391 |  |  | $ | 6,006 |  |  | $ | 4,949 |  |  | $ | 5,048 |  |  | $ | 47,537 |
(1) | Operating lease payments include future minimum rental commitments, including those payable to our principal stockholder, for non-cancelable operating leases of office space as of September 30, 2011.
(2) | Our purchase obligations consist of agreements to purchase goods and services entered into in the ordinary course of business. These represent non-cancelable commitments for which a penalty would be imposed if the agreement was cancelled for any reason other than an event of default as described by the agreement.
Rental expenses under operating leases were $7.9 million, $8.7 million, and $12.6 million for fiscal 2009, 2010, and 2011, respectively. These amounts include expenses for rent payable to our principal stockholder of $1.3 million, $1.4 million, and $1.4 million for fiscal 2009, 2010, and 2011, respectively. We are party to certain contractual agreements under which we have agreed to provide indemnifications of varying scope and duration to the other party relating to our licensed intellectual property. Historically, we have made no payments for these indemnification obligations and no amounts have been accrued in our consolidated financial statements with respect to these obligations. Due to their varying terms and conditions, we are unable to make a reasonable estimate of the maximum potential amount we could be required to pay.

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