Business Segment Data - Schedule of Reports for Net Sales, Operating Income (Loss), Assets, Goodwill, Capital Expenditures and Depreciation and Amortization by Each Reporting 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, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Segment Reporting Information [Line Items]
Net sales	$ 1,444,419	$ 1,404,235	$ 1,328,024	$ 1,171,805	$ 1,182,235	$ 1,061,772	$ 1,055,642	$ 998,193	$ 1,090,771	$ 1,095,675	$ 1,127,029	$ 1,050,603	$ 5,348,483	$ 4,297,842	$ 4,364,078
Operating income (loss)													329,727	201,251	300,246
Assets	4,125,590				3,235,685								4,125,590	3,235,685
Goodwill	540,952				234,342				180,811				540,952	234,342	180,811
Capital expenditures													157,141	101,682	112,536
Depreciation and amortization													132,328	128,168	122,225
Infotainment [Member]
Segment Reporting Information [Line Items]
Goodwill	17,080				8,576				5,856				17,080	8,576	5,856
Lifestyle [Member]
Segment Reporting Information [Line Items]
Goodwill	137,950				107,438				109,945				137,950	107,438	109,945
Professional [Member]
Segment Reporting Information [Line Items]
Goodwill	385,922				118,328				65,010				385,922	118,328	65,010
Operating Segments [Member] | Infotainment [Member]
Segment Reporting Information [Line Items]
Net sales													2,838,904	2,283,247	2,401,562
Operating income (loss)													195,403	90,799	180,529
Assets	1,191,124				1,094,118								1,191,124	1,094,118
Goodwill	17,080				8,576								17,080	8,576
Capital expenditures													91,472	54,364	66,050
Depreciation and amortization													65,912	63,009	66,130
Operating Segments [Member] | Lifestyle [Member]
Segment Reporting Information [Line Items]
Net sales													1,656,094	1,338,355	1,330,798
Operating income (loss)													170,517	137,477	151,490
Assets	1,561,216				1,192,610								1,561,216	1,192,610
Goodwill	137,950				107,438								137,950	107,438
Capital expenditures													43,042	25,587	24,467
Depreciation and amortization													34,581	36,572	33,401
Operating Segments [Member] | Professional [Member]
Segment Reporting Information [Line Items]
Net sales													853,144	672,805	630,731
Operating income (loss)													114,057	85,810	72,997
Assets	1,044,233				468,910								1,044,233	468,910
Goodwill	385,922				118,328								385,922	118,328
Capital expenditures													12,533	11,839	10,187
Depreciation and amortization													20,866	16,882	13,638
Operating Segments [Member] | Other [Member]
Segment Reporting Information [Line Items]
Net sales													341	3,435	987
Operating income (loss)													(150,250)	(112,835)	(104,770)
Assets	329,017				480,047								329,017	480,047
Capital expenditures													10,094	9,892	11,832
Depreciation and amortization													$ 10,969	$ 11,705	$ 9,056