LONG-TERM DEBT (Details) (USD $)										3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Dec. 21, 2012	Mar. 31, 2013 Senior Notes 7% Senior Notes due January 2013	Dec. 21, 2012 Senior Notes 7% Senior Notes due January 2013	Mar. 31, 2013 Senior Notes 4.75% Senior Notes Due December 2022	Dec. 21, 2012 Senior Notes 4.75% Senior Notes Due December 2022	Mar. 31, 2013 Bonds 5% New York City Industrial Development Agency Bonds due September 2035	Dec. 21, 2012 Bonds 5% New York City Industrial Development Agency Bonds due September 2035	Mar. 31, 2013 Revolving Credit Facility	Dec. 21, 2012 Revolving Credit Facility
Debt Instrument [Line Items]
Debt Instrument, Face Amount							$ 500,000,000.0
Total long-term debt	580,000,000		595,844,000	0	15,844,000	500,000,000	500,000,000	80,000,000	80,000,000
Less current maturities	0	(15,844,000)	(15,844,000)
Long-term debt, net of current maturities	580,000,000	580,000,000	580,000,000
Stated rate				7.00%		4.75%	4.75%	5.00%
Line of Credit Facility [Abstract]
Line of credit, maximum borrowing capacity											300,000,000.0
Line of credit, amount outstanding										$ 0
Line of credit, commitment fee percentage										0.25%