XML 19 R23.htm IDEA: XBRL DOCUMENT v3.20.1
Revenue from Contracts with Clients and Customers - Additional Information, Performance Obligation (Details)
$ in Millions
Mar. 31, 2020
USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01  
Revenue from Contract with Customer [Abstract]  
Performance obligation, percentage 87.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Performance obligation, expected timing of satisfaction 9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01  
Revenue from Contract with Customer [Abstract]  
Performance obligation, percentage 12.00%
Performance obligation, amount $ 11.7
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Performance obligation, expected timing of satisfaction 12 months