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REVENUE RECOGNITION AND RECEIVABLES - Receivables (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Accounts Receivable |  |
Gross accounts receivable | $ 155,300 | $ 155,000
Customer receivable - long term | 45,165 | 45,676
Allowance for credit loss | 16,900 | 16,400
FirstNet agreement |  |
Accounts Receivable |  |
Customer receivable | 52,700 | 52,900
Customer receivable - long term | $ 45,200 | $ 45,700

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