CONSOLIDATED STATEMENTS OF CHANGES IN REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ EQUITY (DEFICIT) - USD ($) $ in Millions | Total | Redeemable Convertible Preferred Stock | Common Stock | Common StockClass A and Class B Common Stock | Additional Paid-In Capital | Other Comprehensive Income | Accumulated Deficit |
Beginning balance (in shares) at Jun. 30, 2018 | | 176,300,000 | | | | | |
Beginning balance at Jun. 30, 2018 | | $ 406.3 | | | | | |
Increase (Decrease) in Temporary Equity [Roll Forward] | | | | | | | |
Issuance of Series F redeemable convertible preferred stock, net (in shares) | | 38,100,000 | | | | | |
Issuance of Series F redeemable convertible preferred stock, net | | $ 539.1 | | | | | |
Repurchase of common and preferred stock (in shares) | | (3,800,000) | | | | | |
Repurchase of common and preferred stock | | $ (4.3) | | | | | |
Ending balance (in shares) at Dec. 31, 2018 | | 210,600,000 | | | | | |
Ending balance at Dec. 31, 2018 | | $ 941.1 | | | | | |
Beginning balance (in shares) at Jun. 30, 2018 | | | | 25,900,000 | | | |
Beginning balance at Jun. 30, 2018 | $ (315.6) | | | $ 0 | $ 20.5 | $ 0 | $ (336.1) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | |
Repurchase of common and preferred stock (in shares) | | | | (4,800,000) | | | |
Repurchase of common and preferred stock | (97.8) | | | | | | (97.8) |
Exercise of stock options (in shares) | | | | 1,000,000 | | | |
Exercise of stock options | 2.4 | | | | 2.4 | | |
Stock-based compensation expense | 40.5 | | | | 40.5 | | |
Other comprehensive income | 0.6 | | | | | 0.6 | |
Net loss | (109.6) | | | | | | (109.6) |
Ending balance (in shares) at Dec. 31, 2018 | | | | 22,100,000 | | | |
Ending balance at Dec. 31, 2018 | (479.5) | | | $ 0 | 63.3 | 0.6 | (543.5) |
Beginning balance (in shares) at Sep. 30, 2018 | | 214,400,000 | | | | | |
Beginning balance at Sep. 30, 2018 | | $ 945.4 | | | | | |
Increase (Decrease) in Temporary Equity [Roll Forward] | | | | | | | |
Repurchase of common and preferred stock (in shares) | | (3,800,000) | | | | | |
Repurchase of common and preferred stock | | $ (4.3) | | | | | |
Ending balance (in shares) at Dec. 31, 2018 | | 210,600,000 | | | | | |
Ending balance at Dec. 31, 2018 | | $ 941.1 | | | | | |
Beginning balance (in shares) at Sep. 30, 2018 | | | | 26,100,000 | | | |
Beginning balance at Sep. 30, 2018 | (368.7) | | | $ 0 | 22 | (0.1) | (390.6) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | |
Repurchase of common and preferred stock | (97.8) | | $ (4.8) | | | | (97.8) |
Exercise of stock options (in shares) | | | | 800,000 | | | |
Exercise of stock options | 1.6 | | | | 1.6 | | |
Stock-based compensation expense | 39.7 | | | | 39.7 | | |
Other comprehensive income | 0.7 | | | | | 0.7 | |
Net loss | (55.1) | | | | | | (55.1) |
Ending balance (in shares) at Dec. 31, 2018 | | | | 22,100,000 | | | |
Ending balance at Dec. 31, 2018 | $ (479.5) | | | $ 0 | 63.3 | 0.6 | (543.5) |
Beginning balance (in shares) at Jun. 30, 2019 | 210,640,629 | 210,600,000 | | | | | |
Beginning balance at Jun. 30, 2019 | $ 941.1 | $ 941.1 | | | | | |
Increase (Decrease) in Temporary Equity [Roll Forward] | | | | | | | |
Conversion of redeemable convertible preferred stock to common stock (in shares) | | (210,600,000) | | | | | |
Conversion of redeemable convertible preferred stock to common stock | | $ (941.1) | | | | | |
Ending balance (in shares) at Dec. 31, 2019 | 0 | 0 | | | | | |
Ending balance at Dec. 31, 2019 | $ 0 | $ 0 | | | | | |
Beginning balance (in shares) at Jun. 30, 2019 | | | | 25,300,000 | | | |
Beginning balance at Jun. 30, 2019 | (538.6) | | | $ 0 | 90.7 | 0.2 | (629.5) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | |
Initial public offering, net of issuance costs (in shares) | | | | 43,400,000 | | | |
Initial public offering, net of issuance costs | 1,195.7 | | | | 1,195.7 | | |
Conversion of redeemable convertible preferred stock to common stock (in shares) | | | | 210,600,000 | | | |
Conversion of redeemable convertible preferred stock to common stock | $ 941.1 | | | | 941.1 | | |
Exercise of stock options (in shares) | 991,108 | | | 1,000,000 | | | |
Exercise of stock options | $ 5.1 | | | | 5.1 | | |
Exercise of stock warrants (in shares) | | | | 200,000 | | | |
Stock-based compensation expense | 36.7 | | | | 36.7 | | |
Other comprehensive income | 3.1 | | | | | 3.1 | |
Net loss | (105.2) | | | | | | (105.2) |
Ending balance (in shares) at Dec. 31, 2019 | | | | 280,600,000 | | | |
Ending balance at Dec. 31, 2019 | $ 1,545.2 | | | $ 0 | 2,269.3 | 3.3 | (727.4) |
Beginning balance (in shares) at Sep. 30, 2019 | | 0 | | | | | |
Beginning balance at Sep. 30, 2019 | | $ 0 | | | | | |
Increase (Decrease) in Temporary Equity [Roll Forward] | | | | | | | |
Conversion of redeemable convertible preferred stock to common stock (in shares) | | (210,640,629) | | | | | |
Ending balance (in shares) at Dec. 31, 2019 | 0 | 0 | | | | | |
Ending balance at Dec. 31, 2019 | $ 0 | $ 0 | | | | | |
Beginning balance (in shares) at Sep. 30, 2019 | | | | 280,300,000 | | | |
Beginning balance at Sep. 30, 2019 | 1,576 | | | | 2,249.1 | (1.1) | (672) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | |
Exercise of stock options (in shares) | | | | 300,000 | | | |
Exercise of stock options | 2.6 | | | | 2.6 | | |
Stock-based compensation expense | 17.6 | | | | 17.6 | | |
Other comprehensive income | 4.5 | | | | | 4.5 | |
Net loss | (55.4) | | | | | | (55.4) |
Ending balance (in shares) at Dec. 31, 2019 | | | | 280,600,000 | | | |
Ending balance at Dec. 31, 2019 | $ 1,545.2 | | | $ 0 | $ 2,269.3 | $ 3.3 | $ (727.4) |