GOODWILL AND OTHER INTANGIBLE ASSETS - Intangible assets (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
GOODWILL AND OTHER INTANGIBLE ASSETS
Amortizing intangibles	$ 121,378	$ 66,872
Accumulated amortization	(68,790)	(61,227)
Amortizing intangibles, net	52,588	5,645
Non-amortizing intangibles	1,167,822	1,066,741
Intangibles, net	1,220,410	1,072,386
Amortization expense	7,600	4,400	$ 7,700
Impairment charges	$ 2,200	$ 0	$ 8,700
Minimum
GOODWILL AND OTHER INTANGIBLE ASSETS
Useful life of intangible assets	5 years
Maximum
GOODWILL AND OTHER INTANGIBLE ASSETS
Useful life of intangible assets	15 years

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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