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Acquisitions And Other Investments (Narrative) (Details) (USD $)
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12 Months Ended | ||
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Dec. 31, 2009
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Dec. 31, 2011
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Dec. 31, 2010
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| Loss on remeasurement of equity interest | $ (5,158,000) | ||
| Ownership percentage | 60.00% | ||
| Redeemable noncontrolling interest | 14,000,000 | 30,000,000 | |
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2009 Investment [Member]
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| Percentage of fair value in noncontrolling interest | 40.00% | ||
| Estimated fair value in noncontrolling interest | 15,000,000 | ||
| Additional interest acquired in cash | $ 3,000,000 |
| X | ||||||||||
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- Definition
This element represents the fair value of the noncontrolling interest in the acquiree at the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
In a business combination achieved in stages, this element represents the amount of net gain (loss) recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. No definition available.
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- Definition
The parent entity's interest in net assets of the subsidiary, expressed as a percentage. No definition available.
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| X | ||||||||||
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- Definition
The cash outflow associated with the purchase of noncontrolling interest during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
As of the reporting date, the carrying amount of noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. The noncontrolling interest holder's ownership (or holders' ownership) may be in the form of common shares (regardless of class), limited partnership units (regardless of class), non-preferential membership interests, or any other form of common equity regardless of investee entity legal form. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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