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								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
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	$ 53,678	$ 53,393	$ 50,932	$ 50,726	$ 51,816	$ 50,364	$ 46,371	$ 45,680	$ 208,729	$ 194,231	$ 237,070
Adjusted EBITDA									23,522	9,940	47,994
MCE
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues									175,766	152,606	203,979
MDS
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues									34,217	41,491	32,731
Segment Reconciling Items [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues									(1,254)	134	360
Intersegment Eliminations [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues									(9,032)	(13,744)	(12,476)
Intersegment Eliminations [Member] | MCE
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues									(9,032)	(13,744)	(12,476)
Intersegment Eliminations [Member] | MDS
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues									0	0	0
Operating Segments [Member] | MCE
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues									184,798	166,350	216,455
Adjusted EBITDA									18,495	2,812	40,521
Operating Segments [Member] | MDS
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues									34,217	41,491	32,731
Adjusted EBITDA									5,727	7,097	7,325
Segment Reconciling Items and Intersegment Eliminations [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues									(10,286)	(13,610)	(12,116)
Adjusted EBITDA									$ (700)	$ 31	$ 148