Contract Balances and Performance Obligation Revenue from Contract with Customer (Tables)

6 Months Ended

Mar. 31, 2020

Revenue from Contract with Customer [Abstract]

Contract with Customer, Asset and Liability

Significant changes in the deferred revenues balances during the six months ended March 31, 2020 and 2019 were as follows:



	Six Months Ended March 31, 2020
	(In thousands)
Deferred revenues at September 30, 2019	$	116,320
Revenue recognized that was included in the deferred revenues balance at the beginning of the period	(75,148		)
Increases due to billings, excluding amounts recognized as revenue during the period	80,382
Deferred revenues at March 31, 2020	$	121,554

(*) Deferred revenues at September 30, 2019 included current portion of $111.0 million and long-term portion of $5.3 million that were recorded in deferred revenue and other liabilities, respectively, within the condensed consolidated balance sheets. Deferred revenues at March 31, 2020 included current portion of $114.4 million and long-term portion of $7.2 million that were recorded in deferred revenue and other liabilities, respectively, within the condensed consolidated balance sheets.

Receivables at March 31, 2020 and September 30, 2019 consisted of the following:



	March 31, 2020			September 30, 2019
	(In thousands)
Billed	$	199,102		$	206,714
Unbilled	146,226			127,651
	345,328			334,365
Less: allowance for doubtful accounts	(5,248		)	(2,568		)
Net receivables	340,080			331,797
Less: long-term receivables *	(32,773		)	(34,370		)
Short-term receivables *	$	307,307		$	297,427

(*) Short-term receivables and long-term receivables were recorded in accounts receivable, net and other assets, respectively, within the accompanying condensed consolidated balance sheets.