Goodwill - Schedule of Changes in Carrying Amount of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Schedule Of Goodwill By Segment [Line Items]
Beginning balance	$ 180,811	$ 119,357
Acquisitions and adjustments	59,280	79,757
Contingent purchase price consideration associated with the acquisition of innovative Systems GmbH		(2,083)
Other adjustments	(5,749)	(16,220)
Ending balance	234,342	180,811
Infotainment [Member]
Schedule Of Goodwill By Segment [Line Items]
Beginning balance	5,856	8,069
Acquisitions and adjustments	2,618	0
Contingent purchase price consideration associated with the acquisition of innovative Systems GmbH		(1,258)
Other adjustments	102	(955)
Ending balance	8,576	5,856
Lifestyle [Member]
Schedule Of Goodwill By Segment [Line Items]
Beginning balance	109,945	39,167
Acquisitions and adjustments	12	79,757
Contingent purchase price consideration associated with the acquisition of innovative Systems GmbH		(825)
Other adjustments	(2,519)	(8,154)
Ending balance	107,438	109,945
Professional [Member]
Schedule Of Goodwill By Segment [Line Items]
Beginning balance	65,010	72,121
Acquisitions and adjustments	56,650	0
Contingent purchase price consideration associated with the acquisition of innovative Systems GmbH		0
Other adjustments	(3,332)	(7,111)
Ending balance	118,328	65,010
Other [Member]
Schedule Of Goodwill By Segment [Line Items]
Beginning balance	0	0
Acquisitions and adjustments	0	0
Contingent purchase price consideration associated with the acquisition of innovative Systems GmbH		0
Other adjustments	0	0
Ending balance	$ 0	$ 0