Acquisitions and Dispositions	3 Months Ended
Mar. 31, 2013
Business Combinations [Abstract]
Acquisitions and Dispositions	(6) Acquisitions and Dispositions There were no material acquisitions or dispositions in the three months ended March 31, 2013 and 2012, respectively.

The entire disclosure for business combinations, including leverage buyout transactions (as applicable), and divestitures. This may include a description of a business combination or divestiture (or series of individually immaterial business combinations or divestitures) completed during the period, including background, timing, and assets and liabilities recognized and reclassified or sold. This element does not include fixed asset sales and plant closings.

No definition available.

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