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LONG-TERM DEBT (Details) (USD $)
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6 Months Ended | ||
|---|---|---|---|
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Jun. 30, 2013
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Dec. 31, 2012
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Dec. 21, 2012
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| Debt Instrument [Line Items] | |||
| Total long-term debt | $ 580,000,000 | $ 595,844,000 | |
| Less current maturities | 0 | (15,844,000) | |
| Long-term debt, net of current maturities | 580,000,000 | 580,000,000 | |
|
Senior Notes | 7% Senior Notes due January 2013
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| Debt Instrument [Line Items] | |||
| Total long-term debt | 0 | 15,844,000 | |
| Stated rate | 7.00% | 7.00% | |
|
Senior Notes | 4.75% Senior Notes due December 2022
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|||
| Debt Instrument [Line Items] | |||
| Debt Instrument, Face Amount | 500,000,000.0 | ||
| Total long-term debt | 500,000,000 | 500,000,000 | |
| Stated rate | 4.75% | 4.75% | 4.75% |
|
Bonds | 5% New York City Industrial Development Agency Liberty Bonds due September 2035
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| Debt Instrument [Line Items] | |||
| Total long-term debt | 80,000,000 | 80,000,000 | |
| Stated rate | 5.00% | 5.00% | |
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Revolving Credit Facility
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| Line of Credit Facility [Abstract] | |||
| Line of credit, maximum borrowing capacity | 300,000,000.0 | ||
| Line of credit, amount outstanding | $ 0 | $ 0 | |
| Line of Credit Facility, Commitment Fee Percentage | 0.25% |