Revenue from Contracts with Customers (Tables)

6 Months Ended

Mar. 31, 2021

Revenue From Contract With Customer [Abstract]

Schedule of Contract Assets and Liabilities

Contract Assets and Contract Liabilities

(in thousands)	March 31, 2021		September 30, 2020
Contract asset	$	10,328	$	11,984
Deferred revenue	$	492,421	$	426,465

Disaggregation of Revenue

Disaggregation of Revenue

(in thousands)	Three months ended				Six months ended
	March 31, 2021		March 28, 2020		March 31, 2021		March 28, 2020
Recurring revenue(1)	$	414,845	$	315,862	$	799,803	$	621,230
Perpetual license		6,922		8,218		15,385		17,216
Professional services		40,018		35,523		75,648		77,267
Total revenue	$	461,785	$	359,603	$	890,836	$	715,713

(1) Recurring revenue is comprised of subscription, perpetual support, SaaS, and cloud revenue.