v3.22.0.1

Stock-Based Compensation - Summary of Stock Option Activity (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) $ / shares shares
Number of Shares
Number of shares outstanding, beginning balance | shares	314,500
Number of shares exercised | shares	(35,000)
Number of shares forfeited/canceled | shares	0
Number of shares outstanding, ending balance | shares	279,500
Vested and exercisable, ending balance (in shares) | shares	232,500
Weighted Average Exercise Price
Weighted average exercise price outstanding, beginning balance (in usd per share) | $ / shares	$ 41.82
Weighted average exercise price, exercised (in usd per share) | $ / shares	30.95
Weighted average exercise price, forfeited/canceled (in usd per share) | $ / shares	0
Weighted average exercise price outstanding, ending balance (in usd per share) | $ / shares	43.18
Weighted average exercise price, vested and exercisable, ending balance (in usd per share) | $ / shares	$ 42.06
Weighted average remaining contractual term, ending balance	4 years 6 months
Weighted average remaining contractual term, vested and exercisable, ending balance	4 years 3 months 18 days
Aggregate intrinsic value ending balance | $	$ 27,928
Aggregate intrinsic value, vested and exercisable ending balance | $	$ 23,493

X

- Definition

For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Weighted average price of options that were either forfeited or expired.

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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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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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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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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Number of fully vested and expected to vest exercisable options that may be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for fully vested and expected to vest exercisable or convertible options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Number of share options (or share units) exercised during the current period.

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