Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jul. 31, 2020	Jan. 31, 2020
Current assets:
Cash and cash equivalents	$ 795,782	$ 476,733
Short-term investments	699,707	610,015
Accounts receivable, net of allowance for doubtful accounts of $698 and $617, respectively	220,803	389,690
Unbilled accounts receivable	36,650	32,817
Prepaid expenses and other current assets	32,490	21,869
Total current assets	1,785,432	1,531,124
Property and equipment, net	52,576	54,752
Deferred costs, net	34,645	35,585
Lease right-of-use-assets	51,286	49,132
Goodwill	438,529	438,529
Intangible assets, net	124,420	134,601
Deferred income taxes, noncurrent	12,167	11,870
Other long-term assets	17,354	16,184
Total assets	2,516,409	2,271,777
Current liabilities:
Accounts payable	16,476	19,420
Accrued compensation and benefits	27,494	25,619
Accrued expenses and other current liabilities	22,763	21,620
Income tax payable	2,464	5,613
Deferred revenue	421,167	468,887
Lease liabilities	11,118	10,013
Total current liabilities	501,482	551,172
Deferred income taxes, noncurrent	1,824	2,417
Lease liabilities, noncurrent	46,187	44,815
Other long-term liabilities	10,189	7,779
Total liabilities	559,682	606,183
Commitments and contingencies
Stockholders’ equity:
Additional paid-in capital	850,776	745,475
Accumulated other comprehensive income	6,170	460
Retained earnings	1,099,779	919,658
Total stockholders’ equity	1,956,727	1,665,594
Total liabilities and stockholders’ equity	2,516,409	2,271,777
Class A common stock
Stockholders’ equity:
Common stock	2	1
Class B common stock
Stockholders’ equity:
Common stock	$ 0	$ 0