Shareholders' Equity - Schedule of Changes in Accumulated Other Comprehensive Income and Changes in Equity (Detail) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Schedule Of Shareholders Equity [Line Items]
Beginning Balance				$ 2,374,613
Beginning Balance, Non Controlling Interest				18,213
Beginning Balance				2,392,826	$ 1,793,021
Net income		$ 88,819	$ 70,249	289,522	269,347
Other comprehensive income, net of tax		(25,513)	21,202	(70,758)	15,013
Exercise of stock options				6,102	23,066
Repurchases related to share-based compensation arrangements				(11,932)	(22,272)
Share-based compensation, net				32,908	27,707
Excess tax benefit from share-based compensation				3,693	3,204
Treasury stock repurchases				(74,717)
Acquisition of Redbend	[1]				124,253
Dividends				(75,624)	(68,634)
Non-controlling interest				(17,429)
Ending Balance		2,474,573		2,474,573
Ending Balance, Non Controlling Interest		18		18
Ending Balance		2,474,591	2,164,705	2,474,591	2,164,705
Common Stock [Member]
Schedule Of Shareholders Equity [Line Items]
Beginning Balance				1,007	984
Exercise of stock options				4	8
Ending Balance		1,011	992	1,011	992
Additional Paid-in Capital [Member]
Schedule Of Shareholders Equity [Line Items]
Beginning Balance				1,365,257	1,040,254
Exercise of stock options				6,098	23,058
Repurchases related to share-based compensation arrangements				(11,932)	(22,272)
Share-based compensation, net				32,908	27,707
Excess tax benefit from share-based compensation				3,693	3,204
Acquisition of Redbend	[1]				89,162
Non-controlling interest				1,468
Ending Balance		1,397,492	1,161,113	1,397,492	1,161,113
AOCI [Member]
Schedule Of Shareholders Equity [Line Items]
Beginning Balance				11,434	39,799
Other comprehensive income, net of tax				(70,758)	15,013
Ending Balance		(59,324)	54,812	(59,324)	54,812
Retained Earnings [Member]
Schedule Of Shareholders Equity [Line Items]
Beginning Balance				2,229,517	1,979,234
Net income				288,820	269,503
Dividends				(75,624)	(68,634)
Ending Balance		2,442,713	2,180,103	2,442,713	2,180,103
Treasury Stock [Member]
Schedule Of Shareholders Equity [Line Items]
Beginning Balance				(1,232,602)	(1,267,693)
Treasury stock repurchases				(74,717)
Acquisition of Redbend	[1]				35,091
Ending Balance		(1,307,319)	(1,232,602)	(1,307,319)	(1,232,602)
Total Harman International Industries, Incorporated Shareholders' Equity [Member]
Schedule Of Shareholders Equity [Line Items]
Beginning Balance				2,374,613	1,792,578
Net income				288,820	269,503
Other comprehensive income, net of tax				(70,758)	15,013
Exercise of stock options				6,102	23,066
Repurchases related to share-based compensation arrangements				(11,932)	(22,272)
Share-based compensation, net				32,908	27,707
Excess tax benefit from share-based compensation				3,693	3,204
Treasury stock repurchases				(74,717)
Acquisition of Redbend	[1]				124,253
Dividends				(75,624)	(68,634)
Non-controlling interest				1,468
Ending Balance		2,474,573	2,164,418	2,474,573	2,164,418
Non Controlling Interest [Member]
Schedule Of Shareholders Equity [Line Items]
Beginning Balance, Non Controlling Interest				18,213	443
Net income				702	(156)
Non-controlling interest				(18,897)
Ending Balance, Non Controlling Interest		$ 18	$ 287	$ 18	$ 287

[1] Refer to Note 22 – Acquisitions for more information.