Commitments and Contingencies (Tables)

12 Months Ended

Jan. 31, 2012

Rent Expense Under Operating Leases

Rent expense under operating leases was as follows:

Year ended January 31,fin4	2012		2011		2010
Rent expense	$	27,535	$	29,446	$	32,283

Rental Income Under Sublease Agreements

We entered into agreements to sublease portions of our facility sites. Rental income under these agreements was as follows:

Year ended January 31,	2012		2011		2010
Rental income	$	427	$	1,691	$	1,497

Future Minimum Lease Payments and Sublease Income Under all Non-cancelable Operating Leases

Future minimum lease payments and sublease income under all non-cancelable operating leases are approximately as follows:

Fiscal years ending January 31,	Lease Payments		Sublease Income
2013	$	25,560	$	433
2014		21,232		194
2015		15,106		—
2016		10,736		—
2017		7,330		—
Thereafter		5,435		—
Total	$	85,399	$	627