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Consolidated Balance Sheets - USD ($)
$ in Thousands
Jan. 31, 2019
Jan. 31, 2018
Current assets:    
Cash and cash equivalents $ 638,554 $ 1,134,355
Marketable securities 1,139,864 2,133,495
Trade and other receivables, net of allowance for doubtful accounts of $5,965 and $2,212, respectively 704,680 528,208
Deferred costs 80,809 63,060
Prepaid expenses and other current assets 136,689 97,860
Total current assets 2,700,596 3,956,978
Property and equipment, net 796,907 546,609
Deferred costs, noncurrent 183,518 140,509
Acquisition-related intangible assets, net 313,240 34,234
Goodwill 1,379,125 159,376
Other assets 147,360 109,718
Total assets 5,520,746 4,947,424
Current liabilities:    
Accounts payable 29,093 20,998
Accrued expenses and other current liabilities 123,542 121,879
Accrued compensation 207,924 148,247
Unearned revenue 1,837,618 1,426,241
Current portion of convertible senior notes, net 232,514 341,509
Total current liabilities 2,430,691 2,058,874
Convertible senior notes, net 972,264 1,149,845
Unearned revenue, noncurrent 111,652 110,906
Other liabilities 47,697 47,434
Total liabilities 3,562,304 3,367,059
Commitments and contingencies (Note 12)
Stockholders’ equity:    
Preferred stock, $0.001 par value; 10 million shares authorized as of January 31, 2019 and 2018; no shares issued and outstanding as of January 31, 2019 and 2018 0 0
Additional paid-in capital 4,105,334 3,354,423
Accumulated other comprehensive income (loss) (809) (46,413)
Accumulated deficit (2,146,304) (1,727,856)
Total stockholders’ equity 1,958,442 1,580,365
Total liabilities and stockholders’ equity 5,520,746 4,947,424
Class A Common Stock    
Stockholders’ equity:    
Common stock, value 157 142
Class B Common Stock    
Stockholders’ equity:    
Common stock, value $ 64 $ 69