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REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables)
12 Months Ended
Sep. 30, 2021
Revenue from Contract with Customer [Abstract]  
Schedule of Contract Assets and Liabilities
The following table summarizes the balances of our contract assets and liabilities at the dates indicated:
(in thousands)September 30, 2021September 30, 2020
Contract assets$4,513 $2,367 
(in thousands)September 30, 2021
Contract liabilities balance at October 1, 2019$23,354 
Payment received/accrued and deferred19,312 
Revenue recognized during the period(34,030)
Contract liabilities balance at September 30, 20208,636 
Payment received/accrued and deferred30,721 
Revenue recognized during the period(30,071)
Contract liabilities balance at September 30, 2021$9,286