Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Accounts receivable, related party	$ 0.3	$ 0.1
Accounts payable, related party	1.6	0.0
Current portion of deferred revenue, related party	19.9	34.2
Deferred revenue, net of current portion, related party	$ 0.0	$ 19.9
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	120,000,000	120,000,000
Common stock, shares issued	87,103,007	74,485,883
Common stock, shares outstanding	87,103,007	74,485,883