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REVENUE RECOGNITION - Summary of Significant Changes in the Balances of Contract Liabilities and Assets (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2022
USD ($)
Contract Assets  
Balance, beginning of period $ 93,091
Amount recognized (13,156)
Increase 24,741
Balance, end of period 104,676
Contract Liabilities  
Balance, beginning of period 249,856
Revenue recognized (35,474)
Increase due to billings 76,780
Balance, end of period $ 291,162