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LONG-TERM DEBT (Debt Extinguishment) (Details) (USD $)
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1 Months Ended | 3 Months Ended | 12 Months Ended | 1 Months Ended | 1 Months Ended | 1 Months Ended | |||||||
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Aug. 31, 2013
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Sep. 30, 2013
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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Aug. 31, 2013
7% Senior Notes Due 2020 [Member]
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Aug. 31, 2012
7% Senior Notes Due 2020 [Member]
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Dec. 31, 2013
7% Senior Notes Due 2020 [Member]
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Aug. 31, 2013
Add-on 7% Senior Notes Due 2020 [Member]
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Aug. 31, 2013
Senior Secured Credit Facility [Member]
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Aug. 31, 2013
8.125% Senior Notes Due 2018 [Member]
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Dec. 31, 2013
8.125% Senior Notes Due 2018 [Member]
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Aug. 31, 2012
10.75 % Senior Notes Due 2016 [Member]
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| Debt Instrument [Line Items] | |||||||||||||
| Interest rate, stated percentage | 7.00% | 7.00% | 8.125% | 8.125% | 10.75% | ||||||||
| Debt premium | $ 8,571,000 | $ 8,600,000 | $ 9,000,000 | ||||||||||
| Proceeds from issuance of debt | 802,200,000 | ||||||||||||
| Extinguishment of debt | 472,500,000.0 | 250,000,000 | 287,000,000 | ||||||||||
| Make-whole premium and accrued interest | 35,300,000 | 19,500,000 | |||||||||||
| Related fees and expenses | 22,000,000 | 6,100,000 | |||||||||||
| Proceeds from issuance of debt, net of repayments and payments fees and expenses | 22,400,000 | 12,400,000 | |||||||||||
| Loss (gain) on extinguishment of debt | $ 36,300,000 | $ 36,269,000 | $ (460,000) | $ 0 | $ 36,300,000 | ||||||||