Share-Based Compensation - Summary of Share-Based Compensation (income) expense (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Summary of share-based compensation expense
Share-based compensation expense before income tax		$ 7,727	$ 2,653	$ 7,190
Income tax benefit	[1]	(82)	0	(2,241)
Share-based compensation expense, net of income tax		7,645	2,653	4,949
Performance-based restricted stock units
Summary of share-based compensation expense
Share-based compensation expense before income tax		549	(2,187)	3,990
Restricted Stock Awards And Restricted Stock Units
Summary of share-based compensation expense
Share-based compensation expense before income tax		5,451	4,523	3,200
Stock Options
Summary of share-based compensation expense
Share-based compensation expense before income tax		$ 1,727	$ 317	$ 0

[1] The 2021 income tax benefit amount primarily reflects the tax benefit associated with our Canadian-based employees. There was no income tax benefit in 2020 associated with our employees in the United States and the United Kingdom due to a valuation allowance on our deferred tax assets within these jurisdictions. Refer to Note 17 – Income Taxes.