Fair Value Measurements - Quantitative Information about Level 3 Fair Value Measures (Detail) - Jun. 30, 2015 - Level 3 [Member] - Contingent Consideration [Member] - USD ($)	Total
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair Value	$ 747,000
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	0.20%
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	0.80%
Discounted Cash Flow [Member] | Minimum [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
U.S. Treasury yields	0.20%
Credit spread	2.20%
Discounted Cash Flow [Member] | Maximum [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
U.S. Treasury yields	0.80%
Credit spread	2.80%