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Contract Assets and Liabilities - Additional Information1 (Detail) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-04-01
Mar. 31, 2020
Minimum [Member]  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Performance obligation, revenue expected to be recognized 12 months
Maximum [Member]  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Performance obligation, revenue expected to be recognized 24 months