SUBSEQUENT EVENTS (Details) - USD ($)		3 Months Ended
	May 09, 2017	Mar. 31, 2017	Apr. 15, 2015	Dec. 31, 2014
7.25% Notes due 2021 (Refinanced Secured Notes) | Senior secured notes
SUBSEQUENT EVENTS
Amount of facility			$ 335,000,000
Interest rate (as a percent)		7.25%	7.25%
Credit Agreement, December 2014 | Senior secured term loan facility
SUBSEQUENT EVENTS
Amount of facility				$ 500,000,000
Credit Agreement, December 2014 | Senior secured term loan facility | LIBOR
SUBSEQUENT EVENTS
Interest rate margin (as a percent)		5.25%
Credit Agreement, December 2014 | Revolving credit facility
SUBSEQUENT EVENTS
Maximum borrowing capacity				$ 50,000,000
Credit Agreement, December 2014 | Revolving credit facility | LIBOR
SUBSEQUENT EVENTS
Interest rate margin (as a percent)		4.75%
Credit Agreement, December 2014 | Base rate borrowings | LIBOR
SUBSEQUENT EVENTS
Interest rate margin (as a percent)		1.00%
Subsequent Event | Senior secured term loan facility
SUBSEQUENT EVENTS
Interest rate reduction (as a percent)	0.75%
Subsequent Event | Revolving credit facility
SUBSEQUENT EVENTS
Interest rate reduction (as a percent)	0.25%
Subsequent Event | Credit agreement dated May 9, 2017 | Senior secured term loan facility
SUBSEQUENT EVENTS
Amount of facility	$ 820,000,000
Subsequent Event | Credit agreement dated May 9, 2017 | Revolving credit facility
SUBSEQUENT EVENTS
Maximum borrowing capacity	$ 35,000,000
Subsequent Event | Credit agreement dated May 9, 2017 | Eurodollar Rate Loans | LIBOR
SUBSEQUENT EVENTS
Interest rate margin (as a percent)	4.50%
Subsequent Event | Credit agreement dated May 9, 2017 | Base rate borrowings | Base rate
SUBSEQUENT EVENTS
Interest rate margin (as a percent)	3.50%
Subsequent Event | 7.25% Notes due 2021 (Refinanced Secured Notes) | Senior secured notes
SUBSEQUENT EVENTS
Outstanding amount redeemed	$ 335,000,000
Subsequent Event | Credit Agreement, December 2014 | Senior secured term loan facility
SUBSEQUENT EVENTS
Prepayment of outstanding balances	$ 462,300,000