CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jul. 31, 2013	Jan. 31, 2013
Current assets:
Cash and cash equivalents	$ 347,114	$ 305,939
Accounts receivable, net	40,746	63,948
Prepaid expenses and other current assets	10,547	6,861
Total current assets	398,407	376,748
Property and equipment, net	13,855	13,205
Other assets	403	492
Total assets	412,665	390,445
Current liabilities:
Accounts payable	1,805	1,632
Accrued payroll and compensation	21,888	28,123
Accrued expenses and other liabilities	12,224	7,636
Deferred revenue, current portion	96,908	79,568
Total current liabilities	132,825	116,959
Deferred revenue, non-current	30,727	35,144
Other liabilities, non-current	1,302	798
Total non-current liabilities	32,029	35,942
Total liabilities	164,854	152,901
Commitments and contingencies (Note 3)
Stockholders' equity:
Common stock: $0.001 par value; 1,000,000,000 shares authorized; 105,237,779 shares issued and outstanding at July 31, 2013, and 100,920,350 shares issued and outstanding at January 31, 2013	105	101
Accumulated other comprehensive loss	(243)	(135)
Additional paid-in capital	368,475	328,277
Accumulated deficit	(120,526)	(90,699)
Total stockholders' equity	247,811	237,544
Total liabilities and stockholders' equity	$ 412,665	$ 390,445