Business Combinations - Schedule Of Assets Acquired And Liabilities (Parenthetical) (Detail) $ in Thousands	Apr. 30, 2020 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Paid to the sellers to payoff debt	$ 8,068
Technology-Based Intangible Assets [Member] | Exalenz [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years
Non-compete Agreements [Member] | Exalenz [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years
Trade Names [Member] | Exalenz [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	10 years
Customer Relationships [Member] | Exalenz [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	10 years