Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition - Additional Information (Detail1)

v3.10.0.1
Revenue Recognition - Additional Information (Detail1)
Jun. 30, 2018
Minimum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2018-07-01  
Contract With Customer Assets And Liabilities [Line Items]  
Revenue remaining performance obligation percentage 55.00%
Revenue remaining performance obligation, expected timing of satisfaction, period 1 year
Minimum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2019-07-01  
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
Maximum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2018-07-01  
Contract With Customer Assets And Liabilities [Line Items]  
Revenue remaining performance obligation percentage 60.00%
Revenue remaining performance obligation, expected timing of satisfaction, period 1 year
Maximum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2019-07-01  
Contract With Customer Assets And Liabilities [Line Items]  
Revenue remaining performance obligation percentage 25.00%
Revenue remaining performance obligation, expected timing of satisfaction, period 2 years