Acquisitions - Additional Information (Detail) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended	9 Months Ended
	Dec. 31, 2021 USD ($) Company	Sep. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Jun. 30, 2022 USD ($)	Sep. 30, 2022 USD ($) Business	Sep. 30, 2021 USD ($)
Business Acquisition [Line Items]
Gain on mark-to-market adjustment of contingent consideration					$ (7,482)	$ 0
Goodwill	$ 370,178	$ 455,211			455,211
Issuance of common stock for employee stock purchase program		4,536	$ 4,187
Rapid Miner [Member]
Business Acquisition [Line Items]
Aggregate consideration					100,000
Remaining purchase price of		91,000			91,000
Escrow deposit		8,000			$ 8,000
Concept Engineering [Member]
Business Acquisition [Line Items]
Aggregate consideration				$ 25,700
Remaining purchase price of				$ 22,000
Concept Engineering [Member] | Stock Purchase Agreement [Member]
Business Acquisition [Line Items]
Business acquisition, percentage of interest acquired				100.00%
Other business acquisitions [Member]
Business Acquisition [Line Items]
Number of business acquisitions completed | Business					3
Aggregate consideration					$ 18,000
Net liabilities acquired		900			900
Other business acquisitions [Member] | Goodwill [Member]
Business Acquisition [Line Items]
Aggregate consideration					4,500
Other business acquisitions [Member] | Developed Technology [Member]
Business Acquisition [Line Items]
Aggregate consideration					11,500
Other business acquisitions [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Aggregate consideration					2,900
World Programming [Member]
Business Acquisition [Line Items]
Gain on mark-to-market adjustment of contingent consideration		2,200			7,500
Aggregate consideration	73,043
Net liabilities acquired	(27,995)
Goodwill	$ 101,038
Number Of Privately Held Companies Acquired | Company	2
Contingent consideration	$ 23,000	3,500			$ 3,500
World Programming [Member] | Stock Purchase Agreement [Member]
Business Acquisition [Line Items]
Stock-based compensation recognized service period					2 years 2 months 15 days
World Programming [Member] | Employees [Member] | Other Accrued Expenses and Current Liabilities [Member]
Business Acquisition [Line Items]
Contingent consideration		$ 200			$ 200
Class A Common Stock [Member] | World Programming [Member]
Business Acquisition [Line Items]
Amount of cash consideration	50,000
Contingent consideration	19,500
Issuance of common stock for employee stock purchase program	$ 29,500
Stock-based compensation recognized service period	3 years