Unaudited Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2020	Dec. 31, 2019
Unaudited Condensed Consolidated Balance Sheets
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, authorized shares	240,000,000	240,000,000
Common stock, shares outstanding	60,700,000	59,900,000