FAIR VALUE (FAIR VALUE ASSETS AND LIABILITIES) (DETAILS) (Fair Value, Measurements, Recurring [Member], USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets [Abstract]
Money market investments	$ 0	$ 0
Derivative instruments, net	0	0
Total assets	0	0
Liabilities [Abstract]
Deferred compensation plan liability	0	0
Derivative instruments, net	0
Purcahse price payable	0	0
Total liabilities	0	0
Significant Other Observable Inputs (Level 2) [Member]
Assets [Abstract]
Money market investments	240	350
Derivative instruments, net	0	15,088
Total assets	240	15,438
Liabilities [Abstract]
Deferred compensation plan liability	6,191	5,305
Derivative instruments, net	6,580
Purcahse price payable	0	0
Total liabilities	12,771	5,305
Significant Unobservable Inputs (Level 3) [Member]
Assets [Abstract]
Money market investments	0	0
Derivative instruments, net	0	0
Total assets	0	0
Liabilities [Abstract]
Deferred compensation plan liability	0	0
Derivative instruments, net	0
Purcahse price payable	13,779	12,533
Total liabilities	$ 13,779	$ 12,533