Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 334.1	$ 551.3
Short-term investments	783.5	607.7
Trade and other receivables, net	45.6	36.7
Prepaid expenses and other current assets	59.1	47.5
Total current assets	1,222.3	1,243.2
Property and equipment, net	475.6	445.3
Operating lease right-of-use asset	701.6	657.9
Intangible assets, net	40.5	47.4
Goodwill	234.7	234.5
Other assets	67.6	70.9
Total assets	2,742.3	2,699.2
Current liabilities:
Accounts payable	26.3	40.7
Accrued and other current liabilities	134.5	161.9
Accrued compensation and benefits	71.1	101.4
Operating lease liability	82.6	79.9
Finance lease obligation	83.8	76.7
Deferred revenue	583.5	554.2
Total current liabilities	981.8	1,014.8
Operating lease liability, non-current	771.3	711.9
Finance lease obligation, non-current	152.1	138.2
Other non-current liabilities	33.7	25.9
Total liabilities	1,938.9	1,890.8
Commitments and contingencies (Note 10)
Stockholders’ equity:
Additional paid-in capital	2,560.4	2,531.3
Accumulated deficit	(1,764.4)	(1,726.2)
Accumulated other comprehensive income	7.4	3.3
Total stockholders’ equity	803.4	808.4
Total liabilities and stockholders’ equity	$ 2,742.3	$ 2,699.2