FINANCIAL INSTRUMENTS (Details) (USD $)	6 Months Ended	12 Months Ended																									1 Months Ended	3 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2012	Dec. 31, 2012 Fair Value Hedging [Member]	Jul. 31, 2012 Fair Value Hedging [Member]	Dec. 31, 2011 Fair Value Hedging [Member]	Jun. 30, 2013 Interest Rate Swaps [Member]	Dec. 31, 2012 Interest Rate Swaps [Member]	Jul. 31, 2012 Interest Rate Swaps [Member]	Jun. 30, 2013 Put Option [Member]	Jun. 30, 2013 Foreign Currency Forward Contracts [Member]	Dec. 31, 2012 Foreign Currency Forward Contracts [Member]	Jun. 30, 2013 Call Option [Member]	Jun. 30, 2013 Designated as Hedging Instrument [Member] Interest Rate Swaps [Member]	Dec. 31, 2012 Designated as Hedging Instrument [Member] Interest Rate Swaps [Member]	Jun. 30, 2013 Designated as Hedging Instrument [Member] Interest Rate Swaps [Member] Other assets [Member]	Dec. 31, 2012 Designated as Hedging Instrument [Member] Interest Rate Swaps [Member] Other assets [Member]	Jun. 30, 2013 Designated as Hedging Instrument [Member] Interest Rate Swaps [Member] Other liabilities [Member]	Dec. 31, 2012 Designated as Hedging Instrument [Member] Interest Rate Swaps [Member] Other liabilities [Member]	Jun. 30, 2013 Not Designated as Hedging Instrument [Member]	Dec. 31, 2012 Not Designated as Hedging Instrument [Member]	Jun. 30, 2013 Not Designated as Hedging Instrument [Member] Put Option [Member] Other assets [Member]	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] Put Option [Member] Other assets [Member]	Jun. 30, 2013 Not Designated as Hedging Instrument [Member] Foreign Currency Forward Contracts [Member] Other current assets [Member]	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] Foreign Currency Forward Contracts [Member] Other current assets [Member]	Jun. 30, 2013 Not Designated as Hedging Instrument [Member] Call Option [Member] Other liabilities [Member]	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] Call Option [Member] Other liabilities [Member]	Jul. 31, 2012 Minimum [Member] Fair Value Hedging [Member]	Dec. 31, 2012 Minimum [Member] Fair Value Hedging [Member]	Dec. 31, 2011 Minimum [Member] Fair Value Hedging [Member]	Jul. 31, 2012 Maximum [Member] Fair Value Hedging [Member]	Dec. 31, 2011 Maximum [Member] Fair Value Hedging [Member]	Dec. 31, 2012 Maximum [Member] Fair Value Hedging [Member]
Derivative [Line Items]
Derivative asset							$ 830,000		$ 7,400,000	$ 134,000	$ 403,000				$ 0	$ 830,000			$ 7,534,000	$ 403,000	$ 7,400,000	$ 0	$ 134,000	$ 403,000
Derivatives liabilities																	30,694,000	3,129,000
Derivative, fair value																			(33,100,000)	(1,896,000)					9,940,000	0
Accumulated net loss from designated or qualifying cash flow hedges	6,400,000	6,800,000
Net amount of deferred gains and losses on cash flow hedges that is expected to be reclassified within the next 12 months	1,300,000
Description of variable rate basis																											six-month LIBOR	one-month LIBOR	six-month LIBOR	one-month LIBOR	one-month LIBOR
Variable interest rate																											2.30%	3.40%	0.54%	3.60%	1.33%	5.10%
Derivative asset designated as hedging instrument fair value on termination								71,800,000
Amount to be amortized as a reduction of interest expense								65,200,000
Notional amount			400,000,000	550,000,000	550,000,000
Derivative asset designated as hedging instrument fair value							800,000
Derivative instruments, liabilities						$ 30,694,000					$ 3,129,000	$ 9,940,000	$ 30,700,000	$ 3,100,000