Goodwill and Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	May 31, 2022	Aug. 31, 2021
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 152,035	$ 152,035
Accumulated amortization	98,533	86,676
Net carrying amount	53,502	65,359
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	103,600	103,600
Accumulated amortization	59,525	51,815
Net carrying amount	$ 44,075	$ 51,785
Weighted average remaining life	4 years 7 months 6 days	5 years 3 months 18 days
Acquired Technology
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 32,235	$ 32,235
Accumulated amortization	26,811	23,509
Net carrying amount	$ 5,424	$ 8,726
Weighted average remaining life	1 year 3 months 18 days	1 year 9 months 18 days
Trademarks and Tradenames
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 9,400	$ 9,400
Accumulated amortization	5,483	4,778
Net carrying amount	$ 3,917	$ 4,622
Weighted average remaining life	4 years 1 month 6 days	4 years 9 months 18 days
Domain Name
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 100	$ 100
Accumulated amortization	58	50
Net carrying amount	$ 42	$ 50
Weighted average remaining life	4 years 2 months 12 days	4 years 9 months 18 days
Backlog
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 6,700	$ 6,700
Accumulated amortization	6,656	6,524
Net carrying amount	$ 44	$ 176
Weighted average remaining life	2 months 12 days	9 months 18 days