Fair Value Measurements (Schedule of Valuation of Financial Assets and Liabilities) (Parenthetical) (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013		Jun. 30, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	$ 5,473	[1]	$ 5,346	[2]
Accrued Expenses [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	3,000		1,500
Long-term Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	$ 2,473		$ 3,846

[1] $3,000 included in "Accrued expenses" and $2,473 included in "Long-term liabilities" in the accompanying Condensed Consolidated Balance Sheet as of September 30, 2013.

[2] $1,500 included in "Accrued expenses" and $3,846 included in "Long-term liabilities" in the accompanying Condensed Consolidated Balance Sheet as of June 30, 2013.