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Stock-Based Compensation - Stock Option Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Shares
Outstanding at beginning of period (in shares)	0	8,657	12,558
Exercised (in shares)		(8,248)	(3,901)
Forfeited or expired (in shares)	(409)
Outstanding at end of period (in shares)		0	8,657
Weighted-Average Exercise Price
Outstanding at beginning of period (in usd per share)	$ 0	$ 14.77	$ 14.77
Exercised (in usd per share)		14.77	14.77
Forfeited or expired (in usd per share)		14.77
Outstanding at end of period (in usd per share)		$ 0	$ 14.77

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.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

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

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-Topic 718
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- Definition

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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- Definition

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

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

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