DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Additional Information (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($) instrument
Interest Rate Swap Entered Into In Anticipation of Debt Due January 2018
Derivative [Line Items]
Number of instruments entered into | instrument					7
Notional amount					$ 350,000,000
Interest Rate Swap Entered Into In Anticipation of Debt Due November 2018
Derivative [Line Items]
Number of instruments entered into | instrument					11
Notional amount					$ 500,000,000
Settled Forward-Starting Interest Rate Swaps
Derivative [Line Items]
Cash flow hedge gain (loss) to be reclassified within twelve months			$ (9,800,000)
Interest rate contracts
Derivative [Line Items]
Cash flow hedge gain (loss) to be reclassified within twelve months			(11,500,000)
Forward-Starting Interest Rate Swaps
Derivative [Line Items]
Cash flow hedge gain (loss) to be reclassified within twelve months			1,700,000
Commodity derivatives
Derivative [Line Items]
Cash flow hedge gain (loss) to be reclassified within twelve months			700,000
6.050% Notes Due January 2018
Derivative [Line Items]
Face amount	$ 300,000,000.0		$ 300,000,000.0
Interest rate percentage	6.05%		6.05%
6.050% Notes Due January 2018 | Notes Payable
Derivative [Line Items]
Face amount					$ 300,000,000.0
Interest rate percentage					6.05%
2.650% Notes Due November 2018 | Notes Payable
Derivative [Line Items]
Face amount					$ 400,000,000.0
Interest rate percentage					2.65%
Cash Flow Hedge
Derivative [Line Items]
Loss recognized in OCI on derivatives	$ 5,764,000	$ (1,052,000)	$ 11,995,000	$ (1,052,000)
Cash Flow Hedge | Interest rate contracts
Derivative [Line Items]
Loss recognized in OCI on derivatives	2,207,000	(1,052,000)	12,670,000	(1,052,000)
Cash Flow Hedge | Commodity derivatives
Derivative [Line Items]
Loss recognized in OCI on derivatives	$ 3,557,000	$ 0	$ (675,000)	$ 0