CONSOLIDATED STATEMENTS OF CHANGES IN REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ EQUITY (DEFICIT) - USD ($) $ in Millions | Total | Redeemable Convertible Preferred 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 Mar. 31, 2019 | | 210,600,000 | | | | |
Ending balance at Mar. 31, 2019 | | $ 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) | | | 1,800,000 | | | |
Exercise of stock options | 3.8 | | | 3.8 | | |
Stock-based compensation expense | 48.1 | | | 48.1 | | |
Other comprehensive income (loss) | 1 | | | | 1 | |
Net loss | (148.2) | | | | | (148.2) |
Ending balance (in shares) at Mar. 31, 2019 | | | 22,900,000 | | | |
Ending balance at Mar. 31, 2019 | (508.7) | | $ 0 | 72.3 | 1 | (582) |
Beginning balance (in shares) at Dec. 31, 2018 | | 210,600,000 | | | | |
Beginning balance at Dec. 31, 2018 | | $ 941.1 | | | | |
Ending balance (in shares) at Mar. 31, 2019 | | 210,600,000 | | | | |
Ending balance at Mar. 31, 2019 | | $ 941.1 | | | | |
Beginning balance (in shares) at Dec. 31, 2018 | | | 22,100,000 | | | |
Beginning balance at Dec. 31, 2018 | (479.5) | | $ 0 | 63.3 | 0.6 | (543.5) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | |
Exercise of stock options (in shares) | | | 800,000 | | | |
Exercise of stock options | 1.4 | | | 1.4 | | |
Stock-based compensation expense | 7.6 | | | 7.6 | | |
Other comprehensive income (loss) | 0.4 | | | | 0.4 | |
Net loss | (38.6) | | | | | (38.6) |
Ending balance (in shares) at Mar. 31, 2019 | | | 22,900,000 | | | |
Ending balance at Mar. 31, 2019 | $ (508.7) | | $ 0 | 72.3 | 1 | (582) |
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 Mar. 31, 2020 | 0 | 0 | | | | |
Ending balance at Mar. 31, 2020 | $ 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) | 2,448,692 | | 2,400,000 | | | |
Exercise of stock options | $ 11 | | | 11 | | |
Issuance of common stock under employee stock purchase plan (in shares) | | | 200,000 | | | |
Issuance of common stock under employee stock purchase plan | 3.7 | | | 3.7 | | |
Exercise of stock warrants (in shares) | | | 200,000 | | | |
Stock-based compensation expense | 57.8 | | | 57.8 | | |
Other comprehensive income (loss) | 0.1 | | | | 0.1 | |
Net loss | (160.7) | | | | | (160.7) |
Ending balance (in shares) at Mar. 31, 2020 | | | 282,200,000 | | | |
Ending balance at Mar. 31, 2020 | $ 1,517.3 | | $ 0 | 2,300 | 0.3 | (783) |
Beginning balance (in shares) at Dec. 31, 2019 | | 0 | | | | |
Beginning balance at Dec. 31, 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 Mar. 31, 2020 | 0 | 0 | | | | |
Ending balance at Mar. 31, 2020 | $ 0 | $ 0 | | | | |
Beginning balance (in shares) at Dec. 31, 2019 | | | 280,600,000 | | | |
Beginning balance at Dec. 31, 2019 | 1,545.2 | | $ 0 | 2,269.3 | 3.3 | (727.4) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | |
Exercise of stock options (in shares) | | | 1,500,000 | | | |
Exercise of stock options | 5.9 | | | 5.9 | | |
Issuance of common stock under employee stock purchase plan (in shares) | | | 200,000 | | | |
Issuance of common stock under employee stock purchase plan | 3.7 | | | 3.7 | | |
Stock-based compensation expense | 21.1 | | | 21.1 | | |
Other comprehensive income (loss) | (3) | | | | (3) | |
Net loss | (55.6) | | | | | (55.6) |
Ending balance (in shares) at Mar. 31, 2020 | | | 282,200,000 | | | |
Ending balance at Mar. 31, 2020 | $ 1,517.3 | | $ 0 | $ 2,300 | $ 0.3 | $ (783) |