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COMMITMENTS AND CONTINGENCIES - Leases (Details) - USD ($)
$ in Thousands
 7 Months Ended 12 Months Ended
Dec. 31, 2016
Dec. 31, 2017
May 31, 2016
May 31, 2015
Commitments and Contingencies Disclosure [Abstract]        
Net rent expense on operating leases $ 19,200 $ 44,700 $ 19,700 $ 17,500
Operating Leases        
2018   41,542    
2019   35,916    
2020   28,149    
2021   25,436    
2022   23,946    
Thereafter   179,295    
Total future minimum lease payments   334,284    
Purchase Obligations        
2018   70,663    
2019   58,494    
2020   51,850    
2021   42,699    
2022   13,734    
Thereafter   31,511    
Total future minimum payments   $ 268,951