STOCK-BASED COMPENSATION - Restricted stock activity (Details) - $ / shares	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
RSAs and RSUs
Number of shares
Beginning balance (in shares)	638,181	556,062	443,319
Granted (in shares)	226,061	401,685	369,037
Vested (in shares)	(298,023)	(237,315)	(201,457)
Forfeited (in shares)	(43,484)	(82,251)	(54,837)
Ending balance of Outstanding and exercisable (in shares)	522,735	638,181	556,062
Weighted average grant date fair value
Beginning balance (in USD per share)	$ 125.25	$ 112.07	$ 99.22
Granted (in USD per share)	183.27	132.58	119.97
Vested (in USD per share)	117.28	108.25	99.87
Forfeited (in USD per share)	145.53	121.02	106.07
Ending balance of Outstanding and exercisable (in USD per share)	$ 153.20	$ 125.25	$ 112.07
Performance Shares
Number of shares
Beginning balance (in shares)	134,484	166,702	152,410
Granted (in shares)	86,996	87,146	64,668
Vested (in shares)	(110,376)	(55,399)	(16,834)
Forfeited (in shares)	0	(63,965)	(33,542)
Ending balance of Outstanding and exercisable (in shares)	111,104	134,484	166,702
Weighted average grant date fair value
Beginning balance (in USD per share)	$ 127.72	$ 125.08	$ 108.41
Granted (in USD per share)	145.21	144.35	141.41
Vested (in USD per share)	100.50	130.05	96.00
Forfeited (in USD per share)	0	141.49	95.40
Ending balance of Outstanding and exercisable (in USD per share)	$ 168.45	$ 127.72	$ 125.08

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made 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).

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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).

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(ii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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- Definition

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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No definition available.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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