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Stock Compensation Plans - SSAR's and Stock Option Activity (Detail) - SSAR's and Options [Member] - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Shares Subject to SSARs/Options
Beginning balance (in shares)	287
Granted (in shares)	134
Exercised (in shares)	(84)
Cancelled (in shares)	(6)
Ending balance (in shares)	331	287
Weighted Average Exercise Price
Beginning balance (in dollars per share)	$ 107.48
Granted (in dollars per share)	126.91
Exercised (in dollars per share)	106.66
Cancelled (in dollars per share)	117.04
Ending balance (in dollars per share)	$ 115.35	$ 107.48
SSARs/ Options Exercisable (in shares)	182	235
Expected to Vest (in shares)	142
Expected to Vest (in dollars per share)	$ 122.27

X

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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- 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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Weighted average price of options that were either forfeited or expired.

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

+ References

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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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Number of fully vested and expected to vest options outstanding that can 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 options outstanding. 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 per share amount at which grantees can acquire shares of common stock by exercise of options.

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

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