XML 39 R62.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Revenue Performance Obligations (Details)
Dec. 31, 2019
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Remaining performance obligation, expected timing of satisfaction 12 months