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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified |
Mar. 31, 2012
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Dec. 31, 2011
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| Condensed Consolidated Balance Sheets [Abstract] | ||
| Accumulated depreciation and amortization on property | $ 208,929 | $ 193,735 |
| Allowance for doubtful accounts | $ 2,810 | $ 2,250 |
| Common shares, par value | $ 0.001 | $ 0.001 |
| Common shares, shares authorized | 1,000,000,000 | 1,000,000,000 |
| Common shares, shares outstanding | 116,600,000 | 115,800,000 |
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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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- Definition
A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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 shares of common stock held by shareholders. May be all or portion of the number of common shares authorized. These shares represent the ownership interest of the common shareholders. Shares outstanding equals shares issued minus shares held in treasury and other adjustments, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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