Stock-Based Compensation Plan - SAR Activity (Details) - Stock Appreciation Rights (SARs) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) $ / shares shares
Outstanding SARs
Beginning balance (in shares) | shares	0
Granted (in shares) | shares	1,449
Exercised (in shares) | shares	0
Forfeited/Expired (in shares) | shares	0
Ending balance (in shares) | shares	1,449
Vested and exercisable (in shares) | shares	0
Weighted- Average Exercise Price
Beginning balance (in USD per share) | $ / shares	$ 0
Granted (in USD per share) | $ / shares	3.64
Exercised (in USD per share) | $ / shares	0
Forfeited/Expired (in USD per share) | $ / shares	0
Ending balance (in USD per share) | $ / shares	3.64
Vested and exercisable (in USD per share) | $ / shares	$ 0
Aggregate Intrinsic Value
Beginning balance | $	$ 0
Granted | $	2,716
Exercised | $	0
Forfeited/Expired | $	0
Ending balance | $	2,716
Vested and exercisable | $	$ 0
Outstanding weighted average contractual life (in years)	9 years 4 months 24 days