- Stock-based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2022	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
General and administrative	$ 1,172	$ 6,262	$ 3,734	$ 619
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
General and administrative	45	177	182	61
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
General and administrative	143	393	478	289
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
General and administrative	785	4,053	2,533	609
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
General and administrative	143	1,432	383	(410)
Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
General and administrative	$ 56	$ 207	$ 158	$ 70