Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Condensed Consolidated Balance Sheets (Unaudited)
Restricted cash	$ 0.2	$ 0.2
Trade receivables, allowances	0.0	2.8
Receivables from related party, Allowances	$ 1.1	$ 0.8
Common stock, par value per share	$ 0.001	$ 0.001
Common stock, shares authorized (in thousands)	150,000,000	150,000
Common stock, shares, issued (in thousands)	61,421,000	59,562,000
Common stock, shares, outstanding (in thousands)	61,421	59,562