CONSOLIDATED BALANCE SHEETS(Unaudited) (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Statement Of Financial Position [Abstract]
Accounts receivable, net of allowances	$ 5.7	$ 4.4
Preferred stock, par value	$ 0.0001
Preferred stock, shares authorized	1,000,000
Preferred stock, shares issued	0
Preferred stock, shares outstanding	0
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares issued	29,511,359	7,300,000
Common stock, shares outstanding	29,511,359	7,300,000