Condensed Consolidated Balance Sheets (Parenthetical) $ in Millions	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares
Convertible promissory notes and derivative liability noncurrent, Related party | $	$ 0.0	$ 0.3
Common Stock, Par or Stated Value Per Share | (per share)	$ 0.12	$ 0.12
Common stock, shares authorized	750,000,000	173,116,704
Common stock, shares, issued	160,677,001	114,735,712
Common stock, shares, outstanding	160,677,001	114,735,712