Quantitative Information Associated With Fair Value Measurement of Contingent Consideration (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Jun. 02, 2014
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Accrued Balance				$ 1,370,000
Refine Technology, LLC
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Accrued Balance			$ 1,370,000
Refine Technology, LLC | Milestone Payments
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Accrued Balance				$ 1,370,000
Significant unobservable inputs (Level 3) | Refine Technology, LLC | Milestone Payments
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Accrued Balance		$ 6,369,000
Valuation technique		Probability-adjusted discounted cash flow
Significant unobservable inputs (Level 3) | Refine Technology, LLC | Milestone Payments | Scenario, Actual
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Fixed Earn-out		$ 3,500,000
Variable Earn-out		850,000
Accrued Balance		$ 4,350,000
Significant unobservable inputs (Level 3) | Refine Technology, LLC | Milestone Payments | Scenario, Forecast
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Fixed Earn-out	$ 4,250,000
Variable Earn-out	1,300,000
Accrued Balance	$ 2,019,000
Significant unobservable inputs (Level 3) | Refine Technology, LLC | Milestone Payments | Minimum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Periods in which milestones can be achieved		2015
Significant unobservable inputs (Level 3) | Refine Technology, LLC | Milestone Payments | Maximum
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Periods in which milestones can be achieved		2016