Stockholders' Equity - Equity Capital Raising Activities (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Class of Stock [Line Items]
Issuance of stock					$ 134,138
Payments for common stock repurchased					$ (1,544)	$ 0
Common Stock
Class of Stock [Line Items]
Price per share (in dollars per share)	$ 6.23				$ 6.23
Issuance of stock					$ 17
Common stock repurchased, net (in shares)					(248)
Payments for common stock repurchased					$ (1,544)
Series C Preferred Stock
Class of Stock [Line Items]
Issuance of stock	$ 0	$ 0	$ 8,412	$ 28,173		$ 36,585
2021 Common stock ATM Sales Agreement | Common Stock
Class of Stock [Line Items]
Shares issued (in shares)					16,587		17,915
Price per share (in dollars per share)	$ 8.09				$ 8.09		$ 11.13
Issuance of stock					$ 134,138		$ 199,444
Preferred C ATM Sales Agreement | Series C Preferred Stock
Class of Stock [Line Items]
Shares issued (in shares)							1,500
Price per share (in dollars per share)							$ 24.38
Issuance of stock							$ 36,585
Common stock ATM Sales Agreement | Common Stock
Class of Stock [Line Items]
Shares issued (in shares)							10,713
Price per share (in dollars per share)							$ 12.07
Issuance of stock							$ 129,336