Share-Based Compensation - Activity of Stock Options (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Stock Option Activity, Additional Disclosures
Share price (in dollars per share)	$ 1.68
Service period based stock options
Number of Options
Options Outstanding, Beginning Balance (in shares)	9,495	10,833
Options Granted (in shares)	2,445	1,724
Options Exercised (in shares)	0	(2,146)
Options Forfeited / Expired (in shares)	(2,543)	(916)
Options Outstanding, Ending Balance (in shares)	9,397	9,495	10,833
Options Exercisable (in shares)	6,540
Weighted Average Exercise Price
Options Outstanding, Beginning Balance (in dollars per share)	$ 4.65	$ 3.96
Options Granted (in dollars per share)	2.41	8.67
Options Exercised (in dollars per share)	0	4.34
Options Forfeited / Expired (in dollars per share)	4.11	4.83
Options Outstanding, Ending Balance (in dollars per share)	4.21	$ 4.65	$ 3.96
Weighted Average Exercise Price, Options Exercisable (in dollars per share)	$ 4.46
Stock Option Activity, Additional Disclosures
Weighted Average Remaining Contractual Term, Options Outstanding	6 years 2 months 12 days	6 years 6 months	6 years 9 months 18 days
Weighted Average Remaining Contractual Term, Options Exercisable	5 years
Aggregate Intrinsic Value, Options Outstanding	$ 44	$ 2,452	$ 10,472
Aggregate Intrinsic Value, Options Exercised	0	$ 13,301
Aggregate Intrinsic Value, Options Exercisable, Ending Balance	$ 0
Performance based stock options
Number of Options
Options Outstanding, Beginning Balance (in shares)	41	81
Options Granted (in shares)	0	0
Options Exercised (in shares)	0	(40)
Options Forfeited (in shares)	0	0
Options Outstanding, Ending Balance (in shares)	41	41	81
Outstanding and Exercisable (in shares)	41
Weighted Average Exercise Price
Options Outstanding, Beginning Balance (in dollars per share)	$ 4.34	$ 4.34
Options Granted (in dollars per share)	0	0
Options Exercised (in dollars per share)	0	4.34
Options Forfeited (in dollars per share)	0	0
Options Outstanding, Ending Balance (in dollars per share)	4.34	$ 4.34	$ 4.34
Weighted Average Exercise Price, Outstanding and Exercisable (in dollars per share)	$ 4.34
Stock Option Activity, Additional Disclosures
Weighted Average Remaining Contractual Term, Options Outstanding		2 years 1 month 6 days	3 years 1 month 6 days
Aggregate Intrinsic Value, Options Outstanding		$ 0	$ 37
Aggregate Intrinsic Value, Options Exercised	$ 0	$ 401
Weighted Average Remaining Contractual Term, Options Outstanding	1 year 1 month 6 days
Weighted Average Remaining Contractual Term, Outstanding and Exercisable	1 year 1 month 6 days
Aggregate Intrinsic Value, Options Outstanding	$ 0
Aggregate Intrinsic Value, Outstanding and Exercisable	$ 0
Market Based Stock Options
Number of Options
Options Outstanding, Beginning Balance (in shares)	1,000	1,000
Options Granted (in shares)	0	0
Options Exercised (in shares)	0	0
Options Forfeited (in shares)	0	0
Options Outstanding, Ending Balance (in shares)	1,000	1,000	1,000
Outstanding and Exercisable (in shares)	1,000
Weighted Average Exercise Price
Options Outstanding, Beginning Balance (in dollars per share)	$ 4.24	$ 4.24
Options Granted (in dollars per share)	0	0
Options Exercised (in dollars per share)	0	0
Options Forfeited (in dollars per share)	0	0
Options Outstanding, Ending Balance (in dollars per share)	4.24	$ 4.24	$ 4.24
Weighted Average Exercise Price, Outstanding and Exercisable (in dollars per share)	$ 4.24
Stock Option Activity, Additional Disclosures
Weighted Average Remaining Contractual Term, Options Outstanding		5 years 9 months 18 days	6 years 9 months 18 days
Weighted Average Remaining Contractual Term, Outstanding and Exercisable	4 years 9 months 18 days
Aggregate Intrinsic Value, Options Outstanding	$ 0	$ 0	$ 560
Aggregate Intrinsic Value, Outstanding and Exercisable	$ 0