Operating Segment, Geographic Information and Significant Customers - Summary of Performance of Operations by Reportable Segment (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	$ 54,061	$ 50,726
Adjusted EBITDA	8,003	3,323
MCE
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	48,556	43,488
MDS
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	5,379	7,916
Segment Reconciling Items [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	126	(678)
Intersegment Eliminations [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	(641)	(1,114)
Intersegment Eliminations [Member] | MCE
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	(501)	(1,114)
Intersegment Eliminations [Member] | MDS
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	(140)	0
Operating Segments [Member] | MCE
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	49,057	44,602
Adjusted EBITDA	7,289	2,343
Operating Segments [Member] | MDS
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	5,519	7,916
Adjusted EBITDA	486	1,062
Segment Reconciling Items and Intersegment Eliminations [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	(515)	(1,792)
Adjusted EBITDA	$ 228	$ (82)