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Subsequent Events Review (Details) - USD ($)
$ in Millions
1 Months Ended
May 31, 2018
Aug. 12, 2014
Honeybee Software | Subsequent Event    
Subsequent Event [Line Items]    
Cash paid for acquisition $ 10.7  
2019 Notes    
Subsequent Event [Line Items]    
Interest rate, as a percent   0.75%