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RSA GRANTS (Details 6) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Restricted stock awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 84.21
Restricted stock awards [Member] | Employee Stock Plan [Member] | 2/17/2022 | Ratably Over Period [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted	52,100
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 84.70
Vesting terms	Ratably over 5 years from grant date
Restricted stock awards [Member] | Employee Stock Plan [Member] | 9/15/2022 | Ratably Over Period [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted	646
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 77.44
Vesting terms	Ratably over 5 years from grant date
Restricted stock awards [Member] | Employee Stock Plan [Member] | 2/18/2021 | Ratably Over Period [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted		49,550
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value		$ 81.84
Vesting terms		Ratably over 5 years from grant date
Restricted stock awards [Member] | Employee Stock Plan [Member] | 2/27/2020 | Ratably Over Period [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted			46,550
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value			$ 70.24
Vesting terms			Ratably over 5 years from grant date
Restricted stock awards [Member] | Employee Stock Plan [Member] | 4/15/2020 | Ratably Over Period [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted			880
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value			$ 70.02
Vesting terms			Ratably over 5 years from grant date
Restricted stock awards [Member] | Two Thousand Eighteen Nonemployee Director Stock Plan [Member] | 5/24/2022 | Immediately upon grant date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted	8,099
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 80.39
Vesting terms	Immediately upon grant date
Restricted stock awards [Member] | Two Thousand Eighteen Nonemployee Director Stock Plan [Member] | 5/25/2021 | Immediately upon grant date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted		7,680
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value		$ 78.18
Vesting terms		Immediately upon grant date
Restricted stock awards [Member] | Two Thousand Eighteen Nonemployee Director Stock Plan [Member] | 9/1/2021 | Immediately upon grant date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted		640
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value		$ 76.78
Vesting terms		Immediately upon grant date
Restricted stock awards [Member] | Two Thousand Eighteen Nonemployee Director Stock Plan [Member] | 5/27/2020 | Immediately upon grant date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted			9,438
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value			$ 72.86
Vesting terms			Immediately upon grant date
Performance Shares [Member] | Employee Stock Plan [Member] | 2/17/2022 | At The End of Period [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted	20,700
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 84.70
Vesting terms	The earlier of: the date on which it is determined if the performance goal has been achieved; or, March 31, 2025.
Performance Shares [Member] | Employee Stock Plan [Member] | 2/18/2021 | At The End of Period [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted		18,900
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value		$ 81.84
Vesting terms		The earlier of: the date on which it is determined if the performance goal has been achieved; or, March 31, 2024.
Performance Shares [Member] | Employee Stock Plan [Member] | 2/27/2020 | At The End of Period [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted			17,100
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value			$ 70.24
Vesting terms			The earlier of: the date on which it is determined if the performance goal has been achieved; or, March 31, 2023.

X

- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(01)
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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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