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LONG-TERM DEBT Debt Additions and Repayments (Details) (USD $)
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1 Months Ended | 3 Months Ended | 9 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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Sep. 30, 2012
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Sep. 30, 2013
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Sep. 30, 2012
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Sep. 30, 2013
7% Senior Notes Due 2020 [Member]
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Aug. 31, 2013
7% Senior Notes Due 2020 [Member]
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Dec. 31, 2012
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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Sep. 30, 2013
Senior Secured Credit Facility Term loan A [Member]
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Aug. 31, 2013
Senior Secured Credit Facility Term loan A [Member]
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Sep. 30, 2013
Senior Secured Credit Facility Term loan B [Member]
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Aug. 31, 2013
Senior Secured Credit Facility Term loan B [Member]
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Sep. 30, 2013
Senior Secured Credit Facility Revolving Credit Facility [Member]
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Aug. 31, 2013
Senior Secured Credit Facility Revolving Credit Facility [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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Sep. 30, 2013
8.125% Senior Notes Due 2018 [Member]
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Dec. 31, 2012
8.125% Senior Notes Due 2018 [Member]
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Aug. 31, 2013
Senior Secured Credit Facility [Member]
7% Senior Notes Due 2020 [Member]
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Aug. 31, 2013
Senior Secured Credit Facility [Member]
8.125% Senior Notes Due 2018 [Member]
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| Debt Instrument [Line Items] | |||||||||||||||||||||
| Face amount | $ 425,000,000 | $ 200,000,000 | $ 115,000,000 | $ 115,000,000 | $ 950,000,000 | $ 950,000,000 | |||||||||||||||
| Line of Credit Facility, Maximum Borrowing Capacity | 335,000,000 | 335,000,000 | |||||||||||||||||||
| Proceeds from Issuance of Debt | 802,200,000 | ||||||||||||||||||||
| Interest rate, stated percentage | 7.00% | 7.00% | 7.00% | 8.125% | 8.125% | 8.125% | |||||||||||||||
| Debt premium | 8,893,000 | 8,893,000 | 8,893,000 | 9,000,000 | |||||||||||||||||
| Extinguishment of debt | 472,500,000.0 | 250,000,000 | |||||||||||||||||||
| Make-whole premium and accrued interest | 35,300,000 | ||||||||||||||||||||
| Related fees and expenses | 22,000,000 | ||||||||||||||||||||
| Proceeds from issuance of debt, net of repayments and payments fees and expenses | 22,400,000 | ||||||||||||||||||||
| Loss (gain) on extinguishment of debt | $ 36,269,000 | $ (460,000) | $ 36,269,000 | $ (460,000) | $ 36,269,000 | ||||||||||||||||