Stockholders' Equity - Sales Agreement (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Equity [Abstract]
Stock issued (in shares)	15,851,391	3,950,398
Proceeds Received (Net of Broker Commissions and Fees )	$ 52,621	$ 14,902