Fair Value Measurements (Tables)

9 Months Ended

Oct. 31, 2013

Fair Value Disclosures [Abstract]

Schedule of fair value of financial assets and liabilities that were measured on a recurring basis

The following table sets forth the fair value of our financial assets and liabilities that were measured on a recurring basis as of October 31, 2013 and January 31, 2013 (in thousands):

	October 31, 2013								January 31, 2013
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets:
Money market funds	$	325,964	$	—	$	—	$	325,964	$	250,810	$	—	$	—	$	250,810
Reported as:
Assets:
Cash and cash equivalents							$	325,964							$	250,810
Total							$	325,964							$	250,810