Annual report pursuant to Section 13 and 15(d)

Revenue Recognition - Additional Information (Detail1)

v3.20.1
Revenue Recognition - Additional Information (Detail1)
Mar. 31, 2020
Mar. 31, 2019
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-04-01    
Contract With Customer Assets And Liabilities [Line Items]    
Revenue remaining performance obligation, expected timing of satisfaction, period  
Minimum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-04-01    
Contract With Customer Assets And Liabilities [Line Items]    
Revenue remaining performance obligation percentage 70.00%  
Revenue remaining performance obligation, expected timing of satisfaction, period 1 year  
Minimum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-04-01    
Contract With Customer Assets And Liabilities [Line Items]    
Revenue remaining performance obligation percentage 15.00%  
Revenue remaining performance obligation, expected timing of satisfaction, period 2 years  
Maximum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-04-01    
Contract With Customer Assets And Liabilities [Line Items]    
Revenue remaining performance obligation percentage 75.00%  
Revenue remaining performance obligation, expected timing of satisfaction, period 1 year  
Maximum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-04-01    
Contract With Customer Assets And Liabilities [Line Items]    
Revenue remaining performance obligation percentage 20.00%  
Revenue remaining performance obligation, expected timing of satisfaction, period 2 years