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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GOODWILL AND OTHER INTANGIBLE ASSETS - Additional Information (Details) - USD ($)	3 Months Ended		12 Months Ended
	Jun. 30, 2024	Sep. 30, 2023	Dec. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment	$ 65,900,000	$ 78,300,000	$ 65,861,000	$ 78,257,000
Impairment for long-lived assets		$ 0	0
Amortization of intangible assets			$ 51,700,000	$ 52,800,000
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Useful life of definite lived intangible assets			4 years 2 months 12 days
Internally developed computer software
Finite-Lived Intangible Assets [Line Items]
Useful life of definite lived intangible assets			5 years
Carrier contracts
Finite-Lived Intangible Assets [Line Items]
Useful life of definite lived intangible assets			2 years 2 months 12 days
Technology
Finite-Lived Intangible Assets [Line Items]
Useful life of definite lived intangible assets			3 years 6 months
Trademarks
Finite-Lived Intangible Assets [Line Items]
Useful life of definite lived intangible assets			3 years 6 months