XML 97 R86.htm IDEA: XBRL DOCUMENT v3.20.2
Revenues from Contracts with Customers - Additional Information (Details 1)
Sep. 30, 2020
Dec. 31, 2019
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-01-01    
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]    
Remaining performance obligation expected to be recognized period   1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-07-01    
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]    
Remaining performance obligation expected to be recognized period 1 year