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Common Shares - Summary Of Restricted Stock Units Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payment of taxes from withheld shares	$ (327)	$ (194)
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, Number of units, beginning of period (in shares)	1,998,339	2,467,002	2,467,002
Granted, Number of units (in shares)	759,000		891,000
Cancelled/forfeited, Number of units (in shares)	(361,460)		(413,335)
Vested, net of shares withheld, Number of units (in shares)	(791,868)		(946,328)
Unvested, Number of units, end of period (in shares)	1,604,011		1,998,339
Outstanding, weighted average fair value, beginning of period (in dollars per share)	$ 0.53	$ 0.42	$ 0.42
Granted, Weighted average fair value (in dollars per share)	0.59		0.76
Cancelled/forfeited, Weighted average fair value (in dollars per share)	0.50		0.48
Vested, Weighted average fair value (in dollars per share)	0.47		0.46
Unvested, weighted average fair value, end of period (in dollars per share)	$ 0.60		$ 0.53
Payment of taxes from withheld shares	$ (327)	$ (194)

X

- Definition

Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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