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REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables)
12 Months Ended
Sep. 30, 2020
Revenue from Contract with Customer [Abstract]  
Summary 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, 2020
 
September 30, 2019
Contract assets
$
2,367

 
$
2,151

(in thousands)
September 30, 2020
Contract liabilities balance at October 1, 2018
$
38,472

Payment received/accrued and deferred
30,863

Revenue recognized during the period
(45,981
)
Contract liabilities balance at September 30, 2019
23,354

Payment received/accrued and deferred
19,312

Revenue recognized during the period
(34,030
)
Contract liabilities balance at September 30, 2020
$
8,636