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Stock Based Compensation, Stock Option Activity (Details) - Stock Options [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	$ 0	$ 0
Options outstanding [Roll Forward]
Outstanding at beginning of period (in shares)	0	311
Granted (in shares)	0	0
Exercised (in shares)	0	(311)
Expired (in shares)	0	0
Outstanding at end of period (in shares)	0	0
Exercisable at end of period (in shares)	0	0
Weighted average exercise price [Roll forward]
Outstanding at beginning of period (in dollars per share)	$ 0	$ 12.60
Granted (in dollars per share)	0	0
Exercised (in dollars per share)	0	12.60
Expired (in dollars per share)	0	0
Outstanding at end of period (in dollars per share)	0	0
Exercisable at end of period (in dollars per share)	$ 0	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	$ 0	$ 0

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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Gross number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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