| Acquisitions Acquisitions (Tables) | 12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Dec. 31, 2014 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Business Combinations [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Recognized Identified Assets Acquired and Liabilities Assumed | 
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- Details 
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- Definition Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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