Goodwill and Intangible Assets (Details 2)	12 Months Ended
	Dec. 31, 2012
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	13 years
Trade Names [Member]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years
Customer Relationships [Member]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years
Noncompete Agreements [Member]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years