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Revenue from Contracts with Customers - Summary of Contract Balances (Parenthetical) (Detail)
 12 Months Ended
Dec. 31, 2021
Statement [Line Items]  
Contract performance obligations description According to the business customary practice, the remaining performance obligations (unfulfilled service-type maintenance service) at the year-end is expected to be satisfied within 2 years.
Bottom of range [member]  
Statement [Line Items]  
Trade Receivables Payment Terms 60 days
Top of range [member]  
Statement [Line Items]  
Trade Receivables Payment Terms 90 days