Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Unearned Revenue (Details)
Total Revenue	$ 111,144	$ 94,713	$ 220,450	$ 178,970
North America, primarily the United States
Unearned Revenue (Details)
Total Revenue	77,809	73,790	161,274	140,033
Europe, Middle East & Africa
Unearned Revenue (Details)
Total Revenue	20,414	14,715	36,291	24,874
Rest of world
Unearned Revenue (Details)
Total Revenue	12,921	6,208	22,885	14,063
Transferred at a point in time
Unearned Revenue (Details)
Total Revenue	87,088	72,656	172,574	139,191
Transferred over time
Unearned Revenue (Details)
Total Revenue	$ 24,056	$ 22,057	$ 47,876	$ 39,779