SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Antidilutive Options (Details) - Stock options - $ / shares shares in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Options not included in the computation of diluted earnings per share:
Excluded from the computation of diluted earnings per share (in shares)	274,741	1,086,244	843,980
At least
Options not included in the computation of diluted earnings per share:
Weighted Average Proceeds per Share (in dollars per share)	$ 76.84	$ 43.09	$ 44.55
Maximum
Options not included in the computation of diluted earnings per share:
Weighted Average Proceeds per Share (in dollars per share)	$ 102.01	$ 85.68	$ 59.07

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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