PROVISION FOR INCOME TAXES (Details) (USD $)	3 Months Ended			9 Months Ended
	Sep. 30, 2012	Jun. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Income Tax Examination [Line Items]
Charges/write-offs related to SemiSouth				$ 59,237,000	$ 0
Reversal of related unrecognized tax benefits		26,900,000
Net One Time Charge for Settlement with the Tax Authorities		15,700,000
Effective income tax rate	10.00%		32.40%	(45.10%)	24.20%
Federal statutory tax rate				35.00%
Unrecognized tax benefits that if recognized would affect income-tax rate	10,300,000			10,300,000		34,900,000
Realization of unrecognized tax benefits				26,800,000
Unrecognized tax benefits, including interest and penalties	500,000			500,000		4,400,000
Internal Revenue Service (IRS) [Member]
Income Tax Examination [Line Items]
One time charge from income tax exmination		44,800,000
Federal [Member]
Income Tax Examination [Line Items]
Income tax provision from tax examination, net of interest		35,000,000
Federal income taxes, interest		5,700,000
State [Member]
Income Tax Examination [Line Items]
One time charge from income tax exmination		4,100,000
Reduction of valuation allowance on deferred tax assets		2,200,000
IRS Tax Examination Settlement [Member] | Internal Revenue Service (IRS) [Member]
Income Tax Examination [Line Items]
Income tax examination, years under examination		2003 through 2006
One-time payment of taxes and interest from income tax examination	42,600,000			42,600,000
SemiSouth [Member]
Income Tax Examination [Line Items]
Charges/write-offs related to SemiSouth	59,200,000
Tax benefit related to SemiSouth charges/write-offs	$ 6,900,000