Annual report pursuant to Section 13 and 15(d)

LONG-TERM DEBT (Debt Covenants) (Details)

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LONG-TERM DEBT (Debt Covenants) (Details)
12 Months Ended
Dec. 31, 2017
covenant
quarter
Oct. 31, 2016
Senior Secured Credit Facility [Member]    
Debt Instrument [Line Items]    
Number of consecutive quarters | quarter 4  
4.875% Senior Notes Due 2024 [Member]    
Debt Instrument [Line Items]    
Interest rate, stated percentage 4.875% 4.875%
5.375% Senior Notes due 2022 [Member]    
Debt Instrument [Line Items]    
Interest rate, stated percentage 5.375%  
4.875% Senior Notes & 5.375% Senior Notes [Member]    
Debt Instrument [Line Items]    
Number of covenants | covenant 2  
Fixed charge coverage ratio, minimum 2.0  
Secured indebtedness leverage ratio, maximum 3.50  
Through September 30, 2018 [Member] | Senior Secured Credit Facility [Member]    
Debt Instrument [Line Items]    
Ratio of consolidated total funded debt to consolidated EBITDA 5.25  
December 31, 2018 [Member] | Senior Secured Credit Facility [Member]    
Debt Instrument [Line Items]    
Ratio of consolidated total funded debt to consolidated EBITDA 5.0  
December 31, 2019 [Member] | Senior Secured Credit Facility [Member]    
Debt Instrument [Line Items]    
Ratio of consolidated total funded debt to consolidated EBITDA 4.75  
December 31, 2020 [Member] | Senior Secured Credit Facility [Member]    
Debt Instrument [Line Items]    
Ratio of consolidated total funded debt to consolidated EBITDA 4.50