XML 16 R31.htm IDEA: XBRL DOCUMENT v3.19.3
Revenue Recognition - Remaining Performance Obligation (Details)
$ in Millions
Sep. 30, 2019
USD ($)
Revenue from Contract with Customer [Abstract]  
Remaining performance obligation, amount $ 391.2
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-10-01  
Revenue from Contract with Customer [Abstract]  
Remaining performance obligation, amount $ 149.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Performance obligation period of satisfaction 1 year