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Stock-based Compensation - Additional Information (Detail)	1 Months Ended	3 Months Ended		6 Months Ended
	Dec. 31, 2021 USD ($)	Jun. 30, 2022 USD ($) $ / shares shares	Mar. 31, 2022 USD ($) shares	Jun. 30, 2022 USD ($) Installment $ / shares shares	Sep. 27, 2017 shares
Stock Purchase Agreement [Member] \| World Programming [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense		$ 4,500,000		$ 8,900,000
Business combination, estimated post combination expense				$ 29,500,000
Weighted average remaining service period				2 years 6 months
Stock Purchase Agreement [Member] \| Powersim Inc [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense		900,000		$ 1,100,000
Stock Purchase Agreement [Member] \| Concept Engineering [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense		200,000		$ 200,000
2021 Employee Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of purchase price for each share of common stock purchased of lower of fair market value per share on first day of applicable offering period				85.00%
Stock-based compensation expense		$ 600,000		$ 1,300,000
2021 Employee Stock Purchase Plan [Member] \| The Timing of Payroll Deductions [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Amount withheld on behalf of employees for a future purchase				$ 4,400,000
2021 Employee Stock Purchase Plan [Member] \| Common Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock reserved for issuance \| shares		3,123,191		3,123,191
Issuance of common stock for employee stock purchase program (in shares) \| shares				76,809
Class A Common Stock [Member] \| World Programming [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average remaining service period	3 years
Class A Common Stock [Member] \| Stock Purchase Agreement [Member] \| World Programming [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Business acquisition, shares issued value	$ 29,500,000	$ 6,000,000.0	$ 4,300,000	$ 6,000,000.0
Class A Common Stock [Member] \| Common Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Issuance of common stock for employee stock purchase program (in shares) \| shares			77,000
2017 Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Intrinsic value of options exercised				$ 0.4
2017 Plan [Member] \| Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average grant date fair value of RSUs \| $ / shares		$ 57.21		$ 57.21
Number of vesting equal annual installments \| Installment				4
Compensation cost related to nonvested awards not yet recognized		$ 70,400,000		$ 70,400,000
Weighted average period of recognition				2 years 7 months 6 days
2017 Plan [Member] \| Class A Common Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock reserved for issuance \| shares					16,999,318