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Shareholders’ Equity and Stock Incentive Plans - Summary of PSU Activity (Details) - Performance Stock Units (PSUs) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restricted Stock Units Outstanding
Units Outstanding, Beginning of year (in shares)	743,719	376,328	743,719	376,328	171,748
Units Outstanding, Granted (in shares)			129,503	404,880	204,580
Units Outstanding, Vested (in shares)	(71,468)	(5,254)	(89,920)	(5,254)	0
Units Outstanding, Cancelled (in shares)			(77,725)	(32,235)	0
Units Outstanding, End of year (in shares)			705,577	743,719	376,328
Weighted Average Grant Date Fair Value
Weighted Average Grant Date Fair Value, Beginning of year (USD per share)	$ 13.82	$ 20.65	$ 13.82	$ 20.65	$ 28.41
Weighted Average Grant Date Fair Value, Granted (USD per share)			29.00	8.86	14.13
Weighted Average Grant Date Fair Value, Vested (USD per share)			25.73	28.72
Weighted Average Grant Date Fair Value, Cancelled (USD per share)			25.23	28.72
Weighted Average Grant Date Fair Value, End of year (USD per share)			$ 13.84	$ 13.82	$ 20.65
Total Fair Value of Shares Vested			$ 2,608	$ 47	$ 0
Percentage of target number of PSU's eligible to vest at "maximum" performance level			200.00%
November 2017
Weighted Average Grant Date Fair Value
Actual number of PSUs granted to each recipient, eligible to vest (in shares)			62,791
March 2019
Weighted Average Grant Date Fair Value
Actual number of PSUs granted to each recipient, eligible to vest (in shares)			14,934
2018
Weighted Average Grant Date Fair Value
Actual number of PSUs granted to each recipient, eligible to vest (in shares)		76,722			108,957
2019
Restricted Stock Units Outstanding
Units Outstanding, Granted (in shares)	204,580
Units Outstanding, Vested (in shares)	(18,452)
Weighted Average Grant Date Fair Value
Actual number of PSUs granted to each recipient, eligible to vest (in shares)	189,646

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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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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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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