Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE MEASUREMENTS (Carrying Value And Fair Value Of Financial Instruments Disclosure) (Details)

v3.5.0.2
FAIR VALUE MEASUREMENTS (Carrying Value And Fair Value Of Financial Instruments Disclosure) (Details) - USD ($)
Jun. 30, 2016
Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt Instrument, Original Face Value $ 3,131,700,000 $ 3,448,200,000
$700 Million 4.875% 2021 Senior Note [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt Instrument, Original Face Value 336,200,000 [1],[2],[3],[4],[5],[6],[7],[8],[9] 412,500,000
$400 Million 5.90% 2020 Senior Notes [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt Instrument, Original Face Value 225,600,000 290,800,000
$500 Million 3.95% 2018 Senior Notes [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt Instrument, Original Face Value 283,600,000 311,200,000
Five hundred forty million Eight point two five Twenty twenty First Lien Notes [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt Instrument, Original Face Value 540,000,000 540,000,000
Two hundred Eighteen Point Five Million Eight Point Zero Twenty Twenty One Point Five Lien Notes [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt Instrument, Original Face Value 218,500,000  
Five hundred Forty-four Million Seven Point Seven Five Twenty Twenty Second Lien Notes [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt Instrument, Original Face Value 430,100,000 544,200,000
Interest Rate Swap [Member]    
Long-term debt:    
Fair Value Adjustment to Interest Rate Hedge 2,100,000 2,300,000
Carrying Value [Member] | Fair Value, Inputs, Level 2 [Member]    
Long-term debt:    
Total long-term debt, fair value 2,507,200,000 2,699,400,000
Carrying Value [Member] | Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]    
Long-term debt:    
Fair Value Adjustment to Interest Rate Hedge 2,100,000 2,300,000
Fair Value [Member] | Fair Value, Inputs, Level 2 [Member]    
Long-term debt:    
Total long-term debt, fair value 2,108,100,000 898,200,000
Fair Value [Member] | Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]    
Long-term debt:    
Fair Value Adjustment to Interest Rate Hedge 2,100,000 2,300,000
Senior Notes [Member] | $700 Million 4.875% 2021 Senior Note [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt Instrument, Original Face Value 700,000,000 700,000,000
Senior Notes [Member] | Senior Notes One Point Three Billion [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt Instrument, Original Face Value 1,300,000,000 1,300,000,000
Senior Notes [Member] | $400 Million 5.90% 2020 Senior Notes [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt Instrument, Original Face Value 400,000,000 400,000,000
Senior Notes [Member] | $500 Million 3.95% 2018 Senior Notes [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt Instrument, Original Face Value 500,000,000 500,000,000
Senior Notes [Member] | Five hundred forty million Eight point two five Twenty twenty First Lien Notes [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt Instrument, Original Face Value 540,000,000  
Senior Notes [Member] | Five hundred Forty-four Million Seven Point Seven Five Twenty Twenty Second Lien Notes [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt Instrument, Original Face Value 544,200,000  
Senior Notes [Member] | Carrying Value [Member] | Fair Value, Inputs, Level 1 [Member] | $700 Million 4.875% 2021 Senior Note [Member]    
Long-term debt:    
Total long-term debt, fair value 334,700,000 410,600,000
Senior Notes [Member] | Carrying Value [Member] | Fair Value, Inputs, Level 1 [Member] | Senior Notes One Point Three Billion [Member]    
Long-term debt:    
Total long-term debt, fair value 540,700,000 787,900,000
Senior Notes [Member] | Carrying Value [Member] | Fair Value, Inputs, Level 1 [Member] | $400 Million 5.90% 2020 Senior Notes [Member]    
Long-term debt:    
Total long-term debt, fair value 224,300,000 288,900,000
Senior Notes [Member] | Carrying Value [Member] | Fair Value, Inputs, Level 1 [Member] | $500 Million 3.95% 2018 Senior Notes [Member]    
Long-term debt:    
Total long-term debt, fair value 282,200,000 309,100,000
Senior Notes [Member] | Carrying Value [Member] | Fair Value, Inputs, Level 1 [Member] | Five hundred forty million Eight point two five Twenty twenty First Lien Notes [Member]    
Long-term debt:    
Total long-term debt, fair value 501,800,000 497,400,000
Senior Notes [Member] | Carrying Value [Member] | Fair Value, Inputs, Level 1 [Member] | Five hundred Forty-four Million Seven Point Seven Five Twenty Twenty Second Lien Notes [Member]    
Long-term debt:    
Total long-term debt, fair value 328,600,000 403,200,000
Senior Notes [Member] | Carrying Value [Member] | Fair Value, Inputs, Level 1 [Member] | Revolving Credit Facility [Member]    
Long-term debt:    
Total long-term debt, fair value   0
Senior Notes [Member] | Carrying Value [Member] | Fair Value, Inputs, Level 2 [Member] | Two hundred Eighteen Point Five Million Eight Point Zero Twenty Twenty One Point Five Lien Notes [Member]    
Long-term debt:    
Total long-term debt, fair value 292,800,000 0
Senior Notes [Member] | Fair Value [Member] | Fair Value, Inputs, Level 1 [Member] | $700 Million 4.875% 2021 Senior Note [Member]    
Long-term debt:    
Total long-term debt, fair value 223,600,000 69,400,000
Senior Notes [Member] | Fair Value [Member] | Fair Value, Inputs, Level 1 [Member] | Senior Notes One Point Three Billion [Member]    
Long-term debt:    
Total long-term debt, fair value 349,600,000 137,400,000
Senior Notes [Member] | Fair Value [Member] | Fair Value, Inputs, Level 1 [Member] | $400 Million 5.90% 2020 Senior Notes [Member]    
Long-term debt:    
Total long-term debt, fair value 167,000,000 52,800,000
Senior Notes [Member] | Fair Value [Member] | Fair Value, Inputs, Level 1 [Member] | $500 Million 3.95% 2018 Senior Notes [Member]    
Long-term debt:    
Total long-term debt, fair value 268,000,000 87,100,000
Senior Notes [Member] | Fair Value [Member] | Fair Value, Inputs, Level 1 [Member] | Five hundred forty million Eight point two five Twenty twenty First Lien Notes [Member]    
Long-term debt:    
Total long-term debt, fair value 548,100,000 414,500,000
Senior Notes [Member] | Fair Value [Member] | Fair Value, Inputs, Level 1 [Member] | Five hundred Forty-four Million Seven Point Seven Five Twenty Twenty Second Lien Notes [Member]    
Long-term debt:    
Total long-term debt, fair value 352,700,000 134,700,000
Senior Notes [Member] | Fair Value [Member] | Fair Value, Inputs, Level 2 [Member] | Two hundred Eighteen Point Five Million Eight Point Zero Twenty Twenty One Point Five Lien Notes [Member]    
Long-term debt:    
Total long-term debt, fair value 197,000,000 0
Line of Credit [Member] | Carrying Value [Member] | Fair Value, Inputs, Level 2 [Member] | Revolving Credit Facility [Member]    
Long-term debt:    
Total long-term debt, fair value 0 0
Line of Credit [Member] | Fair Value [Member] | Fair Value, Inputs, Level 2 [Member] | Revolving Credit Facility [Member]    
Long-term debt:    
Total long-term debt, fair value $ 0 $ 0
[1] As of December 31, 2015, no loans were drawn under the ABL Facility and we had total availability of $366.0 million as a result of borrowing base limitations. As of December 31, 2015, the principal amount of letter of credit obligations totaled $186.3 million and commodity hedge obligations totaled $0.5 million, thereby further reducing available borrowing capacity on our ABL Facility to $179.2 million.
[2] As of June 30, 2016, no loans were drawn under the ABL Facility and we had total availability of $425.6 million as a result of borrowing base limitations. As of June 30, 2016, the principal amount of letter of credit obligations totaled $112.8 million, thereby further reducing available borrowing capacity on our ABL Facility to $312.8 million.
[3] On March 2, 2016, we exchanged as part of an exchange offer $114.1 million of the 7.75 percent senior notes for $57.0 million of the 8.00 percent 1.5 lien notes that are recorded at a carrying value of $76.3 million, including undiscounted interest payments as of June 30, 2016.
[4] On March 2, 2016, we exchanged as part of an exchange offer $17.6 million of the 3.95 percent senior notes for $11.4 million of the 8.00 percent 1.5 lien notes that are recorded at a carrying value of $15.3 million, including undiscounted interest payments as of June 30, 2016. Additionally, during the first quarter of 2016 we entered into a debt for equity exchange; see NOTE 15 - CAPITAL STOCK for further discussion of this transaction.
[5] On March 2, 2016, we exchanged as part of an exchange offer $194.4 million of the 6.25 percent senior notes for $75.8 million of the 8.00 percent 1.5 lien notes that are recorded at a carrying value of $101.5 million, including undiscounted interest payments as of June 30, 2016.
[6] On March 2, 2016, we exchanged as part of an exchange offer $44.7 million of the 4.80 percent senior notes for $17.9 million of the 8.00 percent 1.5 lien notes that are recorded at a carrying value of $23.9 million, including undiscounted interest payments as of June 30, 2016. Additionally, during the second quarter of 2016 we entered into a debt for equity exchange; see NOTE 15 - CAPITAL STOCK for further discussion of this transaction.
[7] On March 2, 2016, we exchanged as part of an exchange offer $65.1 million of the 5.90 percent senior notes for $26.0 million of the 8.00 percent 1.5 lien notes that are recorded at a carrying value of $34.9 million, including undiscounted interest payments as of June 30, 2016.
[8] See the section entitled "$218.5 million 8.00 percent 2020 Senior Secured 1.5 Lien Notes - 2016 Exchange Offers" below for further discussion related to this instrument.
[9] n March 2, 2016, we exchanged as part of an exchange offer $76.3 million of the 4.875 percent senior notes for $30.5 million of the 8.00 percent 1.5 lien notes that are recorded at a carrying value of $40.9 million, including undiscounted interest payments