Commitments and Contingencies - Narrative (Details)
$ in Millions
7 Months Ended 12 Months Ended
Jun. 30, 2015
USD ($)
Feb. 01, 2015
USD ($)
Jun. 30, 2017
USD ($)
location
Jun. 30, 2016
USD ($)
Operating Leased Assets [Line Items]        
Number of locations leased | location     65  
Average remaining life     2 years 6 months  
Rent expense $ 3.8   $ 11.2 $ 9.0
Predecessor [Member]        
Operating Leased Assets [Line Items]        
Rent expense   $ 5.4    
Minimum [Member]        
Operating Leased Assets [Line Items]        
Term of contract     5 years  
Maximum [Member]        
Operating Leased Assets [Line Items]        
Term of contract     7 years