Operating Segment, Geographic Information and Significant Customers - Reconciles Net Income, Most Directly Comparable GAAP Financial Measure to Adjusted EBITDA (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract]
(Loss) income from continuing operations	$ (711)	$ (270)	$ (787)	$ (2,304)	$ (1,958)	$ 510	$ (4,960)	$ (7,374)	$ (4,072)	$ (13,782)	$ 22,323
Interest expense, net									40	31	27
Tax (benefit) provision	729	(809)	(442)	(1,319)	(2,044)	(2,341)	(2,299)	(3,817)	(1,841)	(10,501)	8,991
Depreciation									7,625	8,445	7,837
Amortization of intangible assets									7,328	8,222	3,551
Restructuring and other charges									5,443	7,060	2,712
Acquisition costs and other related expenses									0	318	1,219
Fair value adjustments from purchase accounting									0	2,293	(5,238)
Stock-based compensation expense									8,999	7,854	6,572
Adjusted EBITDA									$ 23,522	$ 9,940	$ 47,994