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CONSOLIDATED CONDENSED BALANCE SHEETS (Parenthetical) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
Sep. 30, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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|---|---|---|---|
| Allowance for bad debts | $ 11,156 | $ 8,117 | $ 1,544 |
| Preferred stock, par value | $ 1 | $ 1 | |
| Accumulated depreciation and amortization on property, plant and equipment | $ 1,087,279 | $ 1,029,712 | $ 970,276 |
| Preferred stock, shares authorized | 1,942,000 | 1,942,000 | |
| Preferred stock, shares outstanding | |||
| Common stock, par value | $ 0.16 | $ 0.16 | |
| Common stock, shares authorized | 280,000,000 | 280,000,000 | |
| Common stock, shares issued | 118,968,396 | 117,061,203 | |
| Common stock, shares outstanding | 118,968,396 | 117,061,203 |
| X | ||||||||||
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- Definition
The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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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 of common stock per share; generally not indicative of the fair market value per share. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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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- 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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- Definition
Face amount or stated value per share of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer); generally not indicative of the fair market value per share. 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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