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CONSOLIDATED BALANCE SHEET (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified |
Dec. 31, 2014
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Dec. 31, 2013
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|---|---|---|
| Statement of Financial Position [Abstract] | ||
| Allowance for bad debts | $ (11,188)us-gaap_AllowanceForNotesAndLoansReceivableCurrent | $ (12,853)us-gaap_AllowanceForNotesAndLoansReceivableCurrent |
| Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment | $ 1,201,058us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment | $ 1,136,024us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment |
| Preferred stock, par value | $ 1us-gaap_PreferredStockParOrStatedValuePerShare | $ 1us-gaap_PreferredStockParOrStatedValuePerShare |
| Preferred stock, shares authorized | 1,942,000us-gaap_PreferredStockSharesAuthorized | 1,942,000us-gaap_PreferredStockSharesAuthorized |
| Preferred stock, shares outstanding | 0us-gaap_PreferredStockSharesOutstanding | 0us-gaap_PreferredStockSharesOutstanding |
| Common stock, par value | $ 0.166667us-gaap_CommonStockParOrStatedValuePerShare | $ 0.166667us-gaap_CommonStockParOrStatedValuePerShare |
| Common stock, shares authorized | 280,000,000us-gaap_CommonStockSharesAuthorized | 280,000,000us-gaap_CommonStockSharesAuthorized |
| Common stock, shares issued | 122,045,877us-gaap_CommonStockSharesIssued | 120,491,164us-gaap_CommonStockSharesIssued |
| Common stock, shares outstanding | 122,045,877us-gaap_CommonStockSharesOutstanding | 120,491,164us-gaap_CommonStockSharesOutstanding |
| X | ||||||||||
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- Definition
Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
A valuation allowance relating to a written agreement to receive money (at a specified future date(s) within one year from the reporting date (or the normal operating cycle, whichever is longer), consisting of principal as well as any accrued interest) for the portion that is expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Face amount or stated value per share of common stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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