XML 62 R51.htm IDEA: XBRL DOCUMENT v3.10.0.1
Liabilities - Performance Obligations (Details)
$ in Millions
6 Months Ended
Jun. 30, 2018
USD ($)
Liabilities  
Remaining performance obligations $ 91.4
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-07-01  
Performance obligations  
Percentage of remaining performance obligation expected to be recognized 74.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 1 year