Debt, Total (Details) - USD ($) $ in Thousands |
12 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|||||||||||
| Debt Instrument | |||||||||||||
| Revolving Credit Facility | $ 305,000 | $ 260,000 | |||||||||||
| Term Loan Facility | 250,000 | 0 | |||||||||||
| Capital lease obligations | 8,000 | 8,000 | |||||||||||
| Total Debt | 2,883,000 | 2,588,000 | |||||||||||
| Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net | [1] | (39,000) | (44,000) | ||||||||||
| Current maturities | 0 | 0 | |||||||||||
| Debt, less current maturities | 2,844,000 | 2,544,000 | [2] | ||||||||||
| Aggregate maturities of debt due in 2019 | 806,000 | ||||||||||||
| Aggregate maturities of debt due in 2020 | 720,000 | ||||||||||||
| Amortization of financing costs | 8,000 | 6,000 | $ 2,000 | ||||||||||
| Payments for loans | $ 0 | ||||||||||||
| Interest rate during period | 3.10% | ||||||||||||
| 5.500% Senior Notes Due 2019 | |||||||||||||
| Debt Instrument | |||||||||||||
| Senior Notes | $ 500,000 | 500,000 | |||||||||||
| 5.875% Senior Notes due 2020 | |||||||||||||
| Debt Instrument | |||||||||||||
| Senior Notes | [3] | 470,000 | 470,000 | ||||||||||
| Unamortized premium | 4,000 | 5,000 | |||||||||||
| 6.125% Senior Notes due 2021 | |||||||||||||
| Debt Instrument | |||||||||||||
| Senior Notes | 550,000 | 550,000 | |||||||||||
| 6.250% Senior Notes Due 2022 | |||||||||||||
| Debt Instrument | |||||||||||||
| Senior Notes | $ 800,000 | $ 800,000 | |||||||||||
| Eurodollar | Unsecured Term Loan Facility | |||||||||||||
| Debt Instrument | |||||||||||||
| Reference Rate Percent | [4] | 0.35% | |||||||||||
| Eurodollar or base rate margin | [4] | 2.75% | |||||||||||
| Base Rate | Unsecured Term Loan Facility | |||||||||||||
| Debt Instrument | |||||||||||||
| Reference Rate Percent | [4] | 3.50% | |||||||||||
| Eurodollar or base rate margin | [4] | 1.75% | |||||||||||
| |||||||||||||
| X | ||||||||||
- Definition Amount of unamortized debt discount (premium) and debt issuance costs. No definition available.
|
| X | ||||||||||
- Definition Reference Rate Percent No definition available.
|
| X | ||||||||||
- Definition Amount of noncash expense included in interest expense to issue debt and obtain financing associated with the related debt instruments. Alternate captions include noncash interest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. No definition available.
|
| X | ||||||||||
- Definition The average effective interest rate during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition The amount of debt premium that was originally recognized at the issuance of the instrument that has yet to be amortized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Cash payments for and related to principal collection on loans related to operating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of uncollateralized debt obligation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|