SHARE-BASED COMPENSATION AND BENEFIT PLANS (Stock Option Activity) (Details) - Employee stock option [Member] - Stock option - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Share-Based Compensation and Benefit Plans
Compensation expense for share-based compensation	$ 5,262	$ 4,878
Income tax benefit from compensation expense for share-based compensation	$ 1,296	$ 1,276
Weighted-average grant date fair value of options awarded	$ 144.30	$ 107.26

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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