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REVENUE RECOGNITION - Schedule of Customer Assets & Liabilities (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Accounts receivable |  |
Beginning balance | $ 208,972 | $ 179,331
Increase (decrease), net | (38,003) | 29,641
Ending balance | 170,969 | 208,972
Unbilled accounts receivable |  |
Beginning balance | 73,945 | 58,407
Increase (decrease), net | 22,330 | 15,538
Ending balance | 96,275 | 73,945
Deferred revenue (current) |  |
Beginning balance | 109,119 | 96,824
Increase (decrease), net | 4,820 | 12,295
Ending balance | 113,939 | 109,119
Deferred revenue (long-term) |  |
Beginning balance | 20,619 | 26,010
Increase (decrease), net | (1,365) | (5,391)
Ending balance | $ 19,254 | $ 20,619

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