Contract Balances and Performance Obligations - Revenue from Contract with Customer (Tables)

3 Months Ended

Dec. 31, 2020

Revenue from Contract with Customer [Abstract]

Contract with Customer, Asset and Liability

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

	December 31, 2020		September 30, 2020
	(In thousands)
Billed	$	187,071	$	211,776
Unbilled	178,839		181,550
	365,910		393,326
Less: allowance for doubtful accounts	(4,718)		(5,072)
Net receivables	361,192		388,254
Less: long-term receivables *	(50,566)		(54,074)
Short-term receivables *	$	310,626	334,180

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

Significant changes in the deferred revenues balances during the quarter ended December 31, 2020 were as follows:

	Quarter Ended   December 31, 2020
	(In thousands)
Deferred revenues at September 30, 2020 *	$	122,141
Revenue recognized that was included in the deferred revenues balance at the beginning of the period	(47,793)
Increases due to billings, excluding amounts recognized as revenue during the period	48,441
Deferred revenues at December 31, 2020 *	$	122,789

(*) Deferred revenues at September 30, 2020 included current portion of $115.2 million and long-term portion of $6.9 million that were recorded in deferred revenue and other liabilities, respectively, within the condensed consolidated balance sheets. Deferred revenues at December 31, 2020 included current portion of $115.8 million and long-term portion of $7.0 million that were recorded in deferred revenue and other liabilities, respectively, within the condensed consolidated balance sheets.