Share-Based Compensation - Activity of Service Period Based Stock Options (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Stock Option Activity, Additional Disclosures
Share price (in dollars per share)	$ 1.67
Service period based stock options
Number of Options
Options Outstanding Beginning Balance (in shares)	9,495
Options Granted (in shares)	2,056
Options Exercised (in shares)	0
Options Forfeited (in shares)	(685)
Options Outstanding Ending Balance (in shares)	10,866	9,495
Options Exercisable (in shares)	7,451
Weighted Average Exercise Price
Options Outstanding Beginning Balance (in dollars per share)	$ 4.65
Options Granted (in dollars per share)	2.57
Options Exercised (in dollars per share)	0
Options Forfeited (in dollars per share)	5.22
Options Outstanding Ending Balance (in dollars per share)	4.22	$ 4.65
Options Exercisable (in dollars per share)	$ 4.11
Stock Option Activity, Additional Disclosures
Weighted Average Remaining Contractual Term, Options Outstanding	6 years 2 months 12 days	6 years 6 months
Weighted Average Remaining Contractual Term, Options Exercisable	4 years 8 months 12 days
Aggregate Intrinsic Value, Options Outstanding	$ 3	$ 2,452
Aggregate Intrinsic Value, Options Exercisable	$ 0