Summary of Significant Accounting Policies Goodwill and Intangible Assets (Details)	12 Months Ended
	Dec. 31, 2011 reportingunits
Summary of Significant Accounting Policies [Abstract]
Number of reporting units	8
Acquired Finite-Lived Intangible Assets [Line Items]
Fair value, intangible assets, percent calculated using income approach	75.00%
Sales force relationships - single level [Member] | Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average estimated useful life (years)	6
Sales force relationships - single level [Member] | Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average estimated useful life (years)	8
Sales force relationships - multi tier [Member] | Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average estimated useful life (years)	10
Sales force relationships - multi tier [Member] | Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average estimated useful life (years)	12
Acquired proprietary product formulations [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average estimated useful life (years)	3