XML 51 R40.htm IDEA: XBRL DOCUMENT v3.19.2
Summary of Significant Accounting Policies - Additional Information (Details1)
Jun. 30, 2019
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2019-07-01  
Significant Accounting Policies [Line Items]  
Revenue remaining performance obligation, percentage 74.00%
Revenue, remaining performance obligation, expected timing of satisfaction period 12 months
Minimum | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-07-01  
Significant Accounting Policies [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction period 2 years
Maximum | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-07-01  
Significant Accounting Policies [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction period 5 years