Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 452.7	$ 551.3
Short-term investments	773.8	607.7
Trade and other receivables, net	49.6	36.7
Prepaid expenses and other current assets	54.1	47.5
Total current assets	1,330.2	1,243.2
Property and equipment, net	488.4	445.3
Operating lease right-of-use asset	705.9	657.9
Intangible assets, net	37.0	47.4
Goodwill	234.3	234.5
Other assets	66.5	70.9
Total assets	2,862.3	2,699.2
Current liabilities:
Accounts payable	29.5	40.7
Accrued and other current liabilities	129.4	161.9
Accrued compensation and benefits	93.3	101.4
Operating lease liability	89.7	79.9
Finance lease obligation	86.4	76.7
Deferred revenue	598.6	554.2
Total current liabilities	1,026.9	1,014.8
Operating lease liability, non-current	777.3	711.9
Finance lease obligation, non-current	169.4	138.2
Other non-current liabilities	37.4	25.9
Total liabilities	2,011.0	1,890.8
Commitments and contingencies (Note 10)
Stockholders’ equity:
Additional paid-in capital	2,608.8	2,531.3
Accumulated deficit	(1,764.3)	(1,726.2)
Accumulated other comprehensive income	6.8	3.3
Total stockholders’ equity	851.3	808.4
Total liabilities and stockholders’ equity	$ 2,862.3	$ 2,699.2