Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Apr. 30, 2018
Jan. 31, 2018
Current assets:    
Cash and cash equivalents $ 460,239 $ 320,183 [1]
Short-term investments 458,069 441,779 [1]
Accounts receivable, net of allowance for doubtful accounts of $538 and $345, respectively 154,840 224,668 [1],[2]
Unbilled accounts receivable 17,635 13,348 [1],[2]
Prepaid expenses and other current assets 12,045 12,443 [1]
Total current assets 1,102,828 1,012,421 [1]
Property and equipment, net 51,500 52,284 [1]
Deferred costs, net 29,338 30,306 [1]
Goodwill 95,804 95,804 [1]
Intangible assets, net 29,644 31,490 [1]
Deferred income taxes, noncurrent 2,189 2,222 [1]
Other long-term assets 6,352 5,806 [1]
Total assets 1,317,655 1,230,333 [1]
Current liabilities:    
Accounts payable 9,023 6,944 [1]
Accrued compensation and benefits 15,380 17,054 [1]
Accrued expenses and other current liabilities 12,263 13,152 [1]
Income tax payable [1]   2,080
Deferred revenue 289,560 266,939 [1]
Total current liabilities 326,226 306,169 [1]
Deferred income taxes, noncurrent 9,737 10,949 [1]
Other long-term liabilities 7,255 6,977 [1]
Total liabilities 343,218 324,095 [1]
Commitments and contingencies (Note 12) [1]
Stockholders’ equity:    
Additional paid-in capital 539,665 515,272 [1]
Accumulated other comprehensive income 1,096 1,600 [1]
Retained earnings 433,675 389,365 [1]
Total stockholders’ equity 974,437 906,238 [1]
Total liabilities and stockholders’ equity 1,317,655 1,230,333 [1]
Class A common stock [Member]    
Stockholders’ equity:    
Common stock $ 1 $ 1 [1]
[1] See note 1 of the notes to the condensed consolidated financial statements for a summary of adjustments.
[2] Unbilled accounts receivable was previously included in Accounts receivable before the adoption of Topic 606.