Consolidated Balance Sheets - USD ($) $ in Thousands	Jan. 31, 2021	Jan. 31, 2020
Current assets:
Cash and cash equivalents	$ 730,504	$ 476,733
Short-term investments	933,122	610,015
Accounts receivable, net of allowance for doubtful accounts of $193 and $617, respectively	564,387	389,690
Unbilled accounts receivable	47,206	32,817
Prepaid expenses and other current assets	35,607	21,869
Total current assets	2,310,826	1,531,124
Property and equipment, net	53,650	54,752
Deferred costs, net	42,072	35,585
Lease right-of-use assets	56,917	49,132
Goodwill	436,029	438,529
Intangible assets, net	114,595	134,601
Deferred income taxes	14,100	11,870
Other long-term assets	17,878	16,184
Total assets	3,046,067	2,271,777
Current liabilities:
Accounts payable	23,253	19,420
Accrued compensation and benefits	30,410	25,619
Accrued expenses and other current liabilities	30,982	21,620
Income tax payable	2,590	5,613
Deferred revenue	616,992	468,887
Lease liabilities	11,725	10,013
Total current liabilities	715,952	551,172
Deferred income taxes	1,835	2,417
Lease liabilities, noncurrent	51,393	44,815
Other long-term liabilities	10,567	7,779
Total liabilities	779,747	606,183
Commitments and contingencies
Stockholders’ equity:
Additional paid-in capital	965,670	745,475
Accumulated other comprehensive income	992	460
Retained earnings	1,299,656	919,658
Total stockholders’ equity	2,266,320	1,665,594
Total liabilities and stockholders’ equity	3,046,067	2,271,777
Class A common stock
Stockholders’ equity:
Common stock	2	1
Class B common stock
Stockholders’ equity:
Common stock	$ 0	$ 0