Quarterly report pursuant to Section 13 or 15(d)

TRANSACTIONS WITH AFFILIATES AND AFFILIATED ENTITIES (Narrative) (Details)

v3.19.3
TRANSACTIONS WITH AFFILIATES AND AFFILIATED ENTITIES (Narrative) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Related Party Transaction [Line Items]        
Stock options outstanding (in shares) 9,132,583   9,132,583  
Manager | Transition Services Agreement        
Related Party Transaction [Line Items]        
Costs for transition services agreement $ 0.0 $ 0.1 $ 0.1 $ 0.4
Affiliated Entity        
Related Party Transaction [Line Items]        
Shares held by Fortress and affiliates (in shares) 7,300,000   7,300,000  
Stock options outstanding (in shares) 3,600,000   3,600,000  
Accrued rent, related parties     $ 0.2  
Affiliated Entity | Aircraft Operator Fees        
Related Party Transaction [Line Items]        
Payment to related party (less than)     $ 0.1