Revenue from Contracts with Customers (Tables)

12 Months Ended

Sep. 30, 2020

Revenue From Contract With Customer [Abstract]

Schedule of Contract Assets and Liabilities

Contract Assets and Contract Liabilities

(in thousands)	September 30,
	2020		2019
Contract asset	$	11,984	$	21,038
Deferred revenue	$	426,465	$	396,632

Disaggregation of Revenue

Disaggregation of Revenue

(in thousands)	Year ended September 30,
	As Reported ASC 606		As Reported ASC 606		ASC 605		As Reported ASC 605
	2020		2019		2019		2018
Total recurring revenue	$	1,281,949	$	1,017,398	$	1,078,627	$	978,853
Perpetual license		32,668		70,702		72,191		109,634
Professional services		143,798		167,531		160,676		153,337
Total revenue	$	1,458,415	$	1,255,631	$	1,311,494	$	1,241,824