Operating Segment, Geographic Information and Significant Customers - Geographic Distribution of Revenues and Long Lived Assets from Continuing Operations (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues to unaffiliated customers									$ 270,154	$ 234,847	$ 208,729
Inter-geographic revenues									0	0	0
Net revenues	$ 85,430	$ 65,898	$ 60,417	$ 58,409	$ 64,119	$ 59,578	$ 57,089	$ 54,061	270,154	234,847	208,729
Identifiable long-lived assets	28,337				13,226				28,337	13,226	14,144
Reportable Geographical Components [Member] | US
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues to unaffiliated customers									259,781	229,849	202,845
Inter-geographic revenues									7,911	2,806	3,479
Net revenues									267,692	232,655	206,324
Identifiable long-lived assets	28,187				13,127				28,187	13,127	14,090
Reportable Geographical Components [Member] | Europe
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues to unaffiliated customers									5,464	2,076	2,806
Inter-geographic revenues									447	475	1,550
Net revenues									5,911	2,551	4,356
Identifiable long-lived assets	127				68				127	68	48
Reportable Geographical Components [Member] | Asia Pacific
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues to unaffiliated customers									4,909	2,922	3,078
Inter-geographic revenues									0	0	140
Net revenues									4,909	2,922	3,218
Identifiable long-lived assets	23				31				23	31	6
Geography Eliminations [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues to unaffiliated customers									0	0	0
Inter-geographic revenues									(8,358)	(3,281)	(5,169)
Net revenues									(8,358)	(3,281)	(5,169)
Identifiable long-lived assets	$ 0				$ 0				$ 0	$ 0	$ 0