DEBT (Details 2) - USD ($)				3 Months Ended	12 Months Ended
	Jul. 16, 2019	Jan. 19, 2018	Mar. 09, 2017	Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Oct. 31, 2016	Jun. 30, 2016	Oct. 05, 2015	Jun. 23, 2015	Dec. 22, 1997
Debt Instrument [Line Items]
Senior Revolving Credit Facility, Available Borrowing Amount					$ 796,500,000
Senior Revolving Credit Facility, Letters of Credit Outstanding Amount					3,500,000
Write-off of Unamortized Deferred Debt Issuance Costs					2,800,000	$ 2,600,000
Sumitomo Credit Facility										$ 800,000,000.0
Debt issuance costs					16,600,000	8,500,000	$ 11,200,000
Total Letters of Credit Outstanding					68,700,000
Expected maturities of long-term debt [Abstract]
2020					2,100,000
2021					1,000,000.0
2022					200,700,000
2023					720,600,000
2024					70,700,000
Thereafter					2,386,100,000
July Interest Rate Swap Settlement					1,800,000
Derivative, Notional Amount					174,600,000	116,500,000
August Interest Rate Swap Settlement				$ 2,300,000
Deferred Interest Rate Swap in Debt					2,200,000
Reduction in interest expense due to interest rate swaps					$ 1,700,000	$ 6,800,000	6,100,000
2029 Notes
Debt Instrument [Line Items]
Proceeds from Issuance of Debt	$ 750,000,000.0
Interest rate	5.625%				5.625%	0.00%
$2,000.0 million Senior Credit Facility
Debt Instrument [Line Items]
Senior Credit Facility Term (in years)	5 years
2019 Senior Credit Facility	$ 2,000,000,000.0
$1,975.0 million Senior Credit Facility
Debt Instrument [Line Items]
Senior Credit Facility Term (in years)			5 years
2017 Senior Credit Facility			$ 1,975,000,000.0
$1,850.0 million Senior Credit Facility
Debt Instrument [Line Items]
Senior Credit Facility											$ 1,850,000,000.0
$1,200.0 million Delayed Draw Term Loan Facility
Debt Instrument [Line Items]
Delayed-Draw Term Loan Facility, Maximum Borrowing Capacity	$ 1,200,000,000.0
Annual Required Principal Payment Percent in Years 1 and 2	5.00%
Annual Required Principal Payment Percent in Year 3	7.50%
Annual Required Principal Payment Percent in Years 4 and 5	10.00%
2030 Notes
Debt Instrument [Line Items]
Proceeds from Issuance of Debt		$ 550,000,000.0
Interest rate		5.00%			5.00%	5.00%
Sumitomo Credit Facility
Debt Instrument [Line Items]
Debt Repayments							590,000,000.0
Write-off of Unamortized Deferred Debt Issuance Costs							1,500,000
2023 Notes
Debt Instrument [Line Items]
Interest rate					9.75%	9.75%				9.75%
2025 Notes
Debt Instrument [Line Items]
Interest rate					10.00%	10.00%				10.00%
Senior Credit Facility
Debt Instrument [Line Items]
Write-off of Unamortized Deferred Debt Issuance Costs							1,200,000
$1,375.0 million Term Loan Facility
Debt Instrument [Line Items]
Interest rate					0.00%	4.02%
Debt Repayments						$ 550,000,000.0
2027 Notes
Debt Instrument [Line Items]
Proceeds from Issuance of Debt			$ 500,000,000.0
Interest rate			5.125%		5.125%	5.125%
SunBelt Notes
Debt Instrument [Line Items]
Debt Repayments							12,200,000
$1,375.0 million Term Loan Facility
Debt Instrument [Line Items]
Term Loan Facility, Maximum Borrowing Capacity			$ 1,375,000,000.0
Debt Repayments	$ 493,000,000.0
Term Loan Amortization Payable, Amount Paid							51,600,000
$1,350.0 million Senior Credit Facility
Debt Instrument [Line Items]
Debt Repayments							1,282,500,000
Term Loan Facility											$ 1,350,000,000.0
AR Securitization
Debt Instrument [Line Items]
Receivables Financing Agreement, Repayments	150,000,000.0				$ 150,000,000.0
$800.0 million Senior Revolving Credit Facility
Debt Instrument [Line Items]
Senior Revolving Credit Facility	800,000,000.0
Letter of Credit Subfacility, Maximum	100,000,000.0
$600.0 million Senior Revolving Credit Facility
Debt Instrument [Line Items]
Senior Revolving Credit Facility			$ 600,000,000.0
Guaranteed Senior Secured Notes due 2017, Series O
Debt Instrument [Line Items]
Face amount of senior secured notes												$ 97,500,000
Guaranteed Senior Secured Notes due 2017, Series G
Debt Instrument [Line Items]
Face amount of senior secured notes												$ 97,500,000
SunBelt | SunBelt Notes
Debt Instrument [Line Items]
Interest rate												7.23%
Fixed Interest Rate Swaps $1,100M (Tranche 1)
Expected maturities of long-term debt [Abstract]
Derivative, Notional Amount									$ 1,100,000,000.0
Fixed Interest Rate Swaps $900M (Tranche 2)
Expected maturities of long-term debt [Abstract]
Derivative, Notional Amount									900,000,000.0
Fixed Interest Rate Swaps $400M (Tranche 3)
Expected maturities of long-term debt [Abstract]
Derivative, Notional Amount									400,000,000.0
Interest Rate Swaps Designated As Fair Value Hedges
Expected maturities of long-term debt [Abstract]
Derivative, Notional Amount					0	$ 500,000,000.0		$ 250,000,000.0	$ 250,000,000.0
Derivative, Gain (Loss) on Derivative, Net					$ (2,600,000)	$ (2,100,000)	$ 2,900,000
Maximum | $1,200.0 million Delayed Draw Term Loan Facility
Debt Instrument [Line Items]
Delayed-Draw Term Loan, Number of Draws	$ 3