XML 47 R35.htm IDEA: XBRL DOCUMENT v3.10.0.1
Revenue Recognition - Remaining Performance Obligations (Details)
$ in Millions
Dec. 31, 2018
USD ($)
REVENUE RECOGNITION  
Remaining Performance Obligations $ 66.4
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01  
REVENUE RECOGNITION  
Remaining Performance Obligations $ 41.4
Remaining performance obligations  
Remaining Performance Obligations, period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01  
REVENUE RECOGNITION  
Remaining Performance Obligations $ 25.0
Remaining performance obligations  
Remaining Performance Obligations, period