Fair Value Disclosures - Quantitative Information (Details)	6 Months Ended
	Jun. 30, 2012
Summit Earnout Quantitative Disclosures [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs Discount Rate	14.50%
Fair Value Inputs Weighted Average Probabilities	As of June 30, 2012, the probabilities applied to the payout scenarios ranged from 15% to 50%, depending on the Company’s estimate of the likelihood of each payout scenario.
Fair Value Measurements Valuation Techniques	Discounted cash flow
Techniquimia Holdback Quantitative Disclosures [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs Discount Rate	14.00%
Fair Value Measurements Valuation Techniques	Discounted cash flow
Noncompetition Agreement Obligation Quantitative Disclosures [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs Discount Rate	14.00%
Fair Value Measurements Valuation Techniques	Discounted cash flow
G W Smith Holdback Quantitative Disclosures [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs Discount Rate	15.00%
Fair Value Measurements Valuation Techniques	Discounted cash flow