Nature of Operations and Principles of Consolidation Principles of Consolidation (Details)	Dec. 31, 2013
Principles of Consolidation [Abstract]
Minimum Ownership Percentage Of Investments In Affiliates Required To Be Accounted For Under The Equity Method	20.00%
Maximum Ownership Percentage Of Investments In Affiliates Required To Be Accounted For Under The Equity Method	50.00%

Maximum Ownership Percentage Of Investments In Affiliates Required To Be Accounted For Under The Equity Method

No definition available.

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Data Type:	num:percentItemType
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Period Type:	instant