Quarterly report pursuant to Section 13 or 15(d)

LIABILITIES AND LONG-TERM DEBT - Ratios and Other Information (Details)

v3.10.0.1
LIABILITIES AND LONG-TERM DEBT - Ratios and Other Information (Details)
 6 Months Ended
Jun. 30, 2018
Maximum Consolidated Leverage Ratio [Abstract]  
Maximum consolidated leverage ratio, March 31, 2017 4
Maximum consolidated leverage ratio, June 30, 2017 4.25
Maximum consolidated leverage ratio, September 30, 2017 3.75
Maximum consolidated leverage ratio, December 31, 2017 3.50
Maximum consolidated leverage ratio, March 31, 2018 and each fiscal quarter thereafter 3.25
Minimum Consolidated Fixed Charge Coverage Ratio [Abstract]  
Minimum consolidated fixed charge coverage ratio, March 31, 2017 1.10
Minimum consolidated fixed charge coverage ratio, June 30, 2017 1.05
Minimum consolidated fixed charge coverage ratio, September 30, 2017 1.05
Minimum consolidated fixed charge coverage ratio, December 31, 2017 1.1
Minimum consolidated fixed charge coverage ratio, March 31, 2018 and each fiscal quarter thereafter 1.25
Minimum [Member]  
Leverage Ratios [Abstract]  
Commitment fee 0.25%
Maximum [Member]  
Leverage Ratios [Abstract]  
Commitment fee 0.375%
Leverage Ratio, Less than 1.50 to 1.00 [Member]  
Leverage Ratios [Abstract]  
Commitment fee 0.25%
Leverage Ratio, Less than 1.50 to 1.00 [Member] | Maximum [Member]  
Leverage Ratios [Abstract]  
Consolidated leverage ratio 1.50
Leverage Ratio, Greater than or Equal to 1.50 to 1.00 but Less than 2.00 to 1.00 [Member]  
Leverage Ratios [Abstract]  
Commitment fee 0.25%
Leverage Ratio, Greater than or Equal to 1.50 to 1.00 but Less than 2.00 to 1.00 [Member] | Minimum [Member]  
Leverage Ratios [Abstract]  
Consolidated leverage ratio 1.50
Leverage Ratio, Greater than or Equal to 1.50 to 1.00 but Less than 2.00 to 1.00 [Member] | Maximum [Member]  
Leverage Ratios [Abstract]  
Consolidated leverage ratio 2.00
Leverage Ratio, Greater than or Equal to 2.00 to 1.00 but Less than 3.00 to 1.00 [Member]  
Leverage Ratios [Abstract]  
Commitment fee 0.375%
Leverage Ratio, Greater than or Equal to 2.00 to 1.00 but Less than 3.00 to 1.00 [Member] | Minimum [Member]  
Leverage Ratios [Abstract]  
Consolidated leverage ratio 2.00
Leverage Ratio, Greater than or Equal to 2.00 to 1.00 but Less than 3.00 to 1.00 [Member] | Maximum [Member]  
Leverage Ratios [Abstract]  
Consolidated leverage ratio 3.00
Leverage Ratio, Greater than or Equal to 3.00 to 1.00 but Less than 3.50 to 1.00 [Member]  
Leverage Ratios [Abstract]  
Commitment fee 0.375%
Leverage Ratio, Greater than or Equal to 3.00 to 1.00 but Less than 3.50 to 1.00 [Member] | Minimum [Member]  
Leverage Ratios [Abstract]  
Consolidated leverage ratio 3.00
Leverage Ratio, Greater than or Equal to 3.00 to 1.00 but Less than 3.50 to 1.00 [Member] | Maximum [Member]  
Leverage Ratios [Abstract]  
Consolidated leverage ratio 3.50
Leverage Ratio, Greater than or Equal to 3.50 to 1.00 [Member]  
Leverage Ratios [Abstract]  
Commitment fee 0.375%
Leverage Ratio, Greater than or Equal to 3.50 to 1.00 [Member] | Minimum [Member]  
Leverage Ratios [Abstract]  
Consolidated leverage ratio 3.50
London Interbank Offered Rate (LIBOR) [Member] | Leverage Ratio, Less than 1.50 to 1.00 [Member]  
Leverage Ratios [Abstract]  
Basis spread on variable rate 2.00%
London Interbank Offered Rate (LIBOR) [Member] | Leverage Ratio, Greater than or Equal to 1.50 to 1.00 but Less than 2.00 to 1.00 [Member]  
Leverage Ratios [Abstract]  
Basis spread on variable rate 2.25%
London Interbank Offered Rate (LIBOR) [Member] | Leverage Ratio, Greater than or Equal to 2.00 to 1.00 but Less than 3.00 to 1.00 [Member]  
Leverage Ratios [Abstract]  
Basis spread on variable rate 2.50%
London Interbank Offered Rate (LIBOR) [Member] | Leverage Ratio, Greater than or Equal to 3.00 to 1.00 but Less than 3.50 to 1.00 [Member]  
Leverage Ratios [Abstract]  
Basis spread on variable rate 2.75%
London Interbank Offered Rate (LIBOR) [Member] | Leverage Ratio, Greater than or Equal to 3.50 to 1.00 [Member]  
Leverage Ratios [Abstract]  
Basis spread on variable rate 3.00%
Base Rate [Member] | Leverage Ratio, Less than 1.50 to 1.00 [Member]  
Leverage Ratios [Abstract]  
Basis spread on variable rate 1.00%
Base Rate [Member] | Leverage Ratio, Greater than or Equal to 1.50 to 1.00 but Less than 2.00 to 1.00 [Member]  
Leverage Ratios [Abstract]  
Basis spread on variable rate 1.25%
Base Rate [Member] | Leverage Ratio, Greater than or Equal to 2.00 to 1.00 but Less than 3.00 to 1.00 [Member]  
Leverage Ratios [Abstract]  
Basis spread on variable rate 1.50%
Base Rate [Member] | Leverage Ratio, Greater than or Equal to 3.00 to 1.00 but Less than 3.50 to 1.00 [Member]  
Leverage Ratios [Abstract]  
Basis spread on variable rate 1.75%
Base Rate [Member] | Leverage Ratio, Greater than or Equal to 3.50 to 1.00 [Member]  
Leverage Ratios [Abstract]  
Basis spread on variable rate 2.00%