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Unearned Revenues
3 Months Ended
Mar. 31, 2022
Deferred Revenue Disclosure [Abstract]  
UNEARNED REVENUES
(8) UNEARNED REVENUES

We record deferred revenues when cash payments are received or due in advance of our performance. The decrease in the deferred revenue balance for the three months ended March 31, 2022 is the result of $16.3 million of cash payments received in the current year for which we have not yet satisfied the performance obligations, offset by $21.7 million of revenues recognized that were included in the deferred revenue balance as of December 31, 2021.