Contractual Obligations (Tables)

12 Months Ended

Sep. 30, 2012

Contractual Obligations [Abstract]

Future Minimum Contractual Obligations

Our future minimum commitments under non-cancelable contractual obligations are as follows:

Year Ended September 30,	Senior Convertible Notes, including Interest		Operating Leases		Purchase Obligations
2013	$	7,188	$	6,497	$	7,225
2014	7,188		7,724		4,834
2015	294,687		6,907		3,730
2016	—		6,575		3,648
2017	—		5,563		1,921
Thereafter	—		31,523		—
Total	$	309,063	$	64,789	$	21,358