Fair Value Measurements - Quantitative Information about Level 3 Fair Value Measures (Detail) - Level 3 [Member] - Contingent Consideration [Member]	9 Months Ended
	Sep. 30, 2015 USD ($)
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair Value	$ 671,638
Monte Carlo Analysis [Member] | Minimum [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Forecasted annual EBITDA	$ 500,000
Weighted average cost of capital	14.00%
U.S. Treasury yields	0.00%
Monte Carlo Analysis [Member] | Maximum [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Forecasted annual EBITDA	$ 700,000
Weighted average cost of capital	14.00%
U.S. Treasury yields	0.70%
Discounted Cash Flow [Member] | Minimum [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
U.S. Treasury yields	0.00%
Credit spread	2.10%
Discounted Cash Flow [Member] | Maximum [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
U.S. Treasury yields	0.70%
Credit spread	3.00%