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	3 Months Ended												12 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	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, 2015	Jun. 30, 2014	Jun. 30, 2013
Segment Reporting Information [Line Items]
Net sales	$ 1,678,633	$ 1,464,193	$ 1,583,549	$ 1,428,922	$ 1,444,419	$ 1,404,235	$ 1,328,024	$ 1,171,805	$ 1,182,235	$ 1,061,772	$ 1,055,642	$ 998,193	$ 6,155,297	$ 5,348,483	$ 4,297,842
Operating income (loss)													469,594	329,727	201,251
Assets	5,929,752				4,125,590								5,929,752	4,125,590
Goodwill	1,287,180				540,952				234,342				1,287,180	540,952	234,342
Capital expenditures													192,498	157,141	101,682
Depreciation and amortization													169,231	132,328	128,168
Infotainment [Member]
Segment Reporting Information [Line Items]
Net sales													3,124,882	2,838,904	2,283,247
Operating income (loss)													342,350	195,403	90,799
Assets	1,503,000				1,191,124								1,503,000	1,191,124
Goodwill	24,422				17,080				8,576				24,422	17,080	8,576
Capital expenditures													117,318	91,472	54,364
Depreciation and amortization													69,934	65,912	63,009
Lifestyle [Member]
Segment Reporting Information [Line Items]
Net sales													1,886,850	1,656,094	1,338,355
Operating income (loss)													199,149	170,517	137,477
Assets	1,278,886				1,561,216								1,278,886	1,561,216
Goodwill	159,088				137,950				107,438				159,088	137,950	107,438
Capital expenditures													42,794	43,042	25,587
Depreciation and amortization													42,269	34,581	36,572
Professional [Member]
Segment Reporting Information [Line Items]
Net sales													1,048,964	853,144	672,805
Operating income (loss)													102,002	114,057	85,810
Assets	1,155,660				1,044,233								1,155,660	1,044,233
Goodwill	387,861				385,922				118,328				387,861	385,922	118,328
Capital expenditures													21,263	12,533	11,839
Depreciation and amortization													34,112	20,866	16,882
Services [Member]
Segment Reporting Information [Line Items]
Net sales													88,761	0	0
Operating income (loss)													1,009	0	0
Assets	1,093,970				0								1,093,970	0
Goodwill	529,367				0				0				529,367	0	0
Capital expenditures													5,233	0	0
Depreciation and amortization													11,508	0	0
Other [Member]
Segment Reporting Information [Line Items]
Net sales													5,840	341	3,435
Operating income (loss)													(174,916)	(150,250)	(112,835)
Assets	898,236				329,017								898,236	329,017
Goodwill	$ 186,442				$ 0				$ 0				186,442	0	0
Capital expenditures													5,890	10,094	9,892
Depreciation and amortization													$ 11,407	$ 10,969	$ 11,705