Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Current liabilities    
Accounts payable $ 2,817 $ 4,448
Accrued compensation and employee-related benefits 81,268 96,390
Other accrued liabilities 41,935 37,722
Income taxes payable 4,467 4,743
Deferred revenue 314,698 419,426
Total current liabilities 445,185 562,729
Deferred revenue 21,687 28,058
Other long-term liabilities 53,911 54,385
Total liabilities 520,783 645,172
Commitments and contingencies (Note 9)
Stockholders' equity    
Preferred stock, $0.0001 par value, 10,000,000 shares authorized; none issued 0 0
Additional paid-in capital 1,205,459 1,168,563
Accumulated other comprehensive loss (10,571) (11,991)
Accumulated deficit (285,023) (402,957)
Total stockholders' equity 909,873 753,623
Total liabilities and stockholders' equity 1,430,656 1,398,795
Current assets    
Cash and cash equivalents 623,994 627,878
Short-term investments 241,652 226,787
Accounts receivable, net of allowance for doubtful accounts of $972 and $1,003 132,611 203,366
Prepaid expenses and other current assets (98,461) (30,514)
Income taxes receivable 883 673
Total current assets 1,097,601 1,089,218
Long-term investments 157,497 148,364
Property and equipment, net 101,121 106,753
Goodwill 35,083 35,083
Deferred income taxes 4,215 5,287
Other long-term assets 35,139 14,090
Total assets 1,430,656 1,398,795
Common stock 8 8
Class B common stock    
Current assets    
Common stock 1 1
Class A common stock    
Current assets    
Common stock $ 7 $ 7