XML 34 R36.htm IDEA: XBRL DOCUMENT v3.20.1
Revenue Recognition - Additional Information (Detail 1)
Mar. 31, 2020
Mar. 31, 2019
Minimum | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2019-04-01    
Revenue Recognition [Line Items]    
Performance obligations, customer satisfaction period   1 month
Minimum | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-04-01    
Revenue Recognition [Line Items]    
Performance obligations, customer satisfaction period 1 month  
Maximum | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2019-04-01    
Revenue Recognition [Line Items]    
Performance obligations, customer satisfaction period   21 months
Maximum | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-04-01    
Revenue Recognition [Line Items]    
Performance obligations, customer satisfaction period 21 months