DEBT (Components of Debt) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Debt
Debt, Principal	$ 800,001,000	$ 800,001,000
Debt, Unamortized Premium	170,000	178,000
Total long-term debt	800,171,000	800,179,000
Credit Facility
Debt
Credit Facility	0	0
Debt, Unamortized Premium	0	0
7 1/4% Senior Notes due 2019
Debt
Debt, Principal	577,914,000	577,914,000
Debt, Unamortized Premium	170,000	178,000
Total long-term debt	578,084,000	578,092,000
Interest rate (as a percent)	7.25%	7.25%
7 1/2% Senior Notes due 2020
Debt
Debt, Principal	222,087,000	222,087,000
Debt, Unamortized Premium	0	0
Total long-term debt	$ 222,087,000	$ 222,087,000
Interest rate (as a percent)	7.50%	7.50%

The amount of debt discount (net of debt premium) that was originally recognized at the issuance of the instrument that has yet to be amortized.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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