Stockholders' Equity (Details) $ / shares in Units, $ in Thousands	1 Months Ended	6 Months Ended
	May 31, 2020 USD ($) $ / shares shares	Jun. 30, 2020 USD ($) Vote shares	Dec. 31, 2019 shares
Stockholders' Equity
Common shares issued in a public offering | shares	11,090,000	88,196,705	54,956,341
Price per share in a public offering | $ / shares	$ 8.05
Proceeds from offering | $	$ 82,800	$ 246,727
Number Of Vote Per Common Stock | Vote		1