SHARE-BASED COMPENSATION - Stock Options Activity (Details) - $ / shares shares in Thousands	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Awards
Shares, Outstanding at beginning of period (in shares)	33	32
Shares, Exercised (in shares)	(4)	0
Shares, Forfeited (in shares)	0	0
Shares, Outstanding at end of the period (in shares)	29	32
Shares, Exercisable at end of the period (in shares)	29	28
Weighted-Average Exercise Price
Weighted-Average Exercise Price, Outstanding at beginning of period (in usd per share)	$ 54.98	$ 54.98
Weighted-Average Exercise Price, Exercised (in usd per share)	27.18	0
Weighted-Average Exercise Price, Forfeited (in usd per share)	0	0
Weighted-Average Exercise Price, Outstanding at beginning of period (in usd per share)	58.65	54.98
Weighted-Average Exercise Price, Exercisable at end of the period (in usd per share)	$ 58.65	$ 52.76

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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- Definition

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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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.

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

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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