Operating Segment, Geographic Information and Significant Customers - Reconciles Net Income, Most Directly Comparable GAAP Financial Measure to Adjusted EBITDA (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract]
Income (loss) from continuing operations	$ 6,132	$ 4,694	$ 2,886	$ 717	$ (711)	$ (270)	$ (787)	$ (2,304)	$ 14,429	$ (4,072)	$ (13,782)
Interest expense, net									13	40	31
Tax provision (benefit)	$ 1,850	$ 1,469	$ 1,047	$ 0	$ 729	$ (809)	$ (442)	$ (1,319)	4,366	(1,841)	(10,501)
Depreciation									6,332	7,625	8,445
Amortization of intangible assets									7,008	7,328	8,222
Restructuring and other charges									3,175	5,443	7,060
Acquisition and Financing Costs									451	0	318
Fair value adjustments from purchase accounting									0	0	2,293
Stock-based compensation expense									8,640	8,999	7,854
Adjusted EBITDA									$ 44,414	$ 23,522	$ 9,940