Shareholders' Equity - Schedule of Changes in Accumulated Other Comprehensive Income and Changes in Equity (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Schedule Of Shareholders Equity [Line Items]
Beginning Balance				$ 2,374,613
Beginning Balance, Non Controlling Interest				18,213
Net income		$ 113,187	$ 116,164	200,703	$ 199,098
Other comprehensive income, net of tax	[1]	(1,571)	(7,654)	(45,245)	(6,189)
Exercise of stock options				5,531	10,406
Repurchases related to share-based compensation arrangements				(11,861)	(21,924)
Share-based compensation, net				20,941	18,770
Excess tax benefit from share-based compensation				1,958	3,401
Treasury Stock Repurchases				(50,009)
Dividends				(50,382)	(45,649)
Acquisition of Non-Controlling Interest				(4)
Ending Balance		2,445,542		2,445,542
Ending Balance, Non Controlling Interest		18,916		18,916
Beginning Balance				2,392,826	1,793,021
Ending Balance		2,464,458	1,950,934	2,464,458	1,950,934
Preferred Stock [Member]
Schedule Of Shareholders Equity [Line Items]
Beginning Balance				0	0
Net income				0	0
Exercise of stock options				0	0
Repurchases related to share-based compensation arrangements				0	0
Share-based compensation, net				0	0
Excess tax benefit from share-based compensation				0	0
Treasury Stock Repurchases				0
Dividends				0	0
Acquisition of Non-Controlling Interest				0
Ending Balance		0	0	0	0
Common Stock [Member]
Schedule Of Shareholders Equity [Line Items]
Beginning Balance				1,007	984
Net income				0	0
Exercise of stock options				4	5
Repurchases related to share-based compensation arrangements				0	0
Share-based compensation, net				0	0
Excess tax benefit from share-based compensation				0	0
Treasury Stock Repurchases				0
Dividends				0	0
Acquisition of Non-Controlling Interest				0
Ending Balance		1,011	989	1,011	989
Additional Paid-in Capital [Member]
Schedule Of Shareholders Equity [Line Items]
Beginning Balance				1,365,257	1,040,254
Net income				0	0
Exercise of stock options				5,527	10,401
Repurchases related to share-based compensation arrangements				(11,861)	(21,924)
Share-based compensation, net				20,941	18,770
Excess tax benefit from share-based compensation				1,958	3,401
Treasury Stock Repurchases				0
Dividends				0	0
Acquisition of Non-Controlling Interest				0
Ending Balance		1,381,822	1,050,902	1,381,822	1,050,902
AOCI [Member]
Schedule Of Shareholders Equity [Line Items]
Beginning Balance				11,434	39,799
Net income				0	0
Other comprehensive income, net of tax				(45,245)	(6,189)
Exercise of stock options				0	0
Repurchases related to share-based compensation arrangements				0	0
Share-based compensation, net				0	0
Excess tax benefit from share-based compensation				0	0
Treasury Stock Repurchases				0
Dividends				0	0
Acquisition of Non-Controlling Interest				0
Ending Balance		(33,811)	33,610	(33,811)	33,610
Retained Earnings [Member]
Schedule Of Shareholders Equity [Line Items]
Beginning Balance				2,229,517	1,979,234
Net income				199,996	199,208
Exercise of stock options				0	0
Repurchases related to share-based compensation arrangements				0	0
Share-based compensation, net				0	0
Excess tax benefit from share-based compensation				0	0
Treasury Stock Repurchases				0
Dividends				(50,382)	(45,649)
Acquisition of Non-Controlling Interest				0
Ending Balance		2,379,131	2,132,793	2,379,131	2,132,793
Treasury Stock [Member]
Schedule Of Shareholders Equity [Line Items]
Beginning Balance				(1,232,602)	(1,267,693)
Net income				0	0
Exercise of stock options				0	0
Repurchases related to share-based compensation arrangements				0	0
Share-based compensation, net				0	0
Excess tax benefit from share-based compensation				0	0
Treasury Stock Repurchases				(50,009)
Dividends				0	0
Acquisition of Non-Controlling Interest				0
Ending Balance		(1,282,611)	(1,267,693)	(1,282,611)	(1,267,693)
Total Harman International Industries, Incorporated Shareholders' Equity [Member]
Schedule Of Shareholders Equity [Line Items]
Beginning Balance				2,374,613	1,792,578
Net income				199,996	199,208
Other comprehensive income, net of tax				(45,245)	(6,189)
Exercise of stock options				5,531	10,406
Repurchases related to share-based compensation arrangements				(11,861)	(21,924)
Share-based compensation, net				20,941	18,770
Excess tax benefit from share-based compensation				1,958	3,401
Treasury Stock Repurchases				(50,009)
Dividends				(50,382)	(45,649)
Acquisition of Non-Controlling Interest				0
Ending Balance		2,445,542	1,950,601	2,445,542	1,950,601
Non Controlling Interest [Member]
Schedule Of Shareholders Equity [Line Items]
Beginning Balance, Non Controlling Interest				18,213	443
Net income				707	(110)
Other comprehensive income, net of tax				0	0
Exercise of stock options				0	0
Repurchases related to share-based compensation arrangements				0	0
Share-based compensation, net				0	0
Excess tax benefit from share-based compensation				0	0
Treasury Stock Repurchases				0
Dividends				0	0
Acquisition of Non-Controlling Interest				(4)
Ending Balance, Non Controlling Interest		$ 18,916	$ 333	$ 18,916	$ 333

[1] Refer to Note 15 - Other Comprehensive Income (Loss) for more information.