Other Comprehensive Income (Loss) - Schedule of Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Pension liability adjustment:
Amortization of net loss, Pre-Tax		$ 3,767	$ 3,038	$ 3,873
Expected return on plan assets, Pre-Tax		(255)	(259)	(284)
Actuarial loss, Pre-Tax		(16,236)	(11,066)
Other comprehensive income (loss), Pre-Tax		23,767	9,132	(14,119)
Other comprehensive income attributable to Harman International Industries, Incorporated, Pre-Tax		23,767	9,132	(14,119)
Foreign currency translation (losses) gains, Net of Tax	[1]	(191,212)	44,881	5,379
Changes in hedging derivatives:
Reclassifications from AOCI into income (effective portion), Net of Tax		51,965	(9,378)	25,865
Gains (losses) recognized in AOCI (effective portion), Net of Tax		271,153	(37,679)	(1,165)
Unrealized gains (losses) on hedging derivatives, Net of Tax	[1]	164,599	(21,248)	(19,266)
Pension liability adjustment:
Other gains (losses), Net of Tax		5,267
Pension liability adjustment, Net of Tax	[1]	1,858	5,817	(1,728)
Unrealized gains on available-for-sale securities, Net of Tax	[1]	106	183	4,250
Other comprehensive income (loss), Net of Tax		(28,365)	17,999	(7,909)
Other comprehensive income attributable to Harman International Industries, Incorporated, Net of Tax		(28,365)	17,999	(7,909)
Cumulative Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Foreign currency translation (losses) gains, Pre-Tax		(191,212)	44,881	5,379
Pension liability adjustment:
Foreign currency translation (losses) gains, Net of Tax		(191,212)	44,881	5,379
Unrealized Gains (Losses) on Hedging Derivatives [Member]
Changes in hedging derivatives:
Gains (losses) recognized in AOCI (effective portion), Pre-Tax		271,153	(37,679)	(1,165)
Other (losses) gains, Pre-Tax		(993)	(69)	37
Unrealized gains (losses) on hedging derivatives, Pre-Tax		218,195	(28,370)	(26,993)
Changes in hedging derivatives:
Gains (losses) recognized in AOCI (effective portion), Net of Tax		204,549	(28,220)	(831)
Other (losses) gains, Net of Tax		(749)	(52)	25
Unrealized gains (losses) on hedging derivatives, Net of Tax		164,599	(21,248)	(19,266)
Unrealized Gains (Losses) on Hedging Derivatives [Member] | Cost of Sales [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Changes in hedging derivatives:
Reclassifications from AOCI into income (effective portion), Pre-Tax		(51,720)	8,980	(25,798)
Changes in hedging derivatives:
Reclassifications from AOCI into income (effective portion), Net of Tax		(39,016)	6,726	(18,412)
Unrealized Gains (Losses) on Hedging Derivatives [Member] | Selling, General and Administrative Expense [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Changes in hedging derivatives:
Reclassifications from AOCI into income (effective portion), Pre-Tax		(245)	398	(67)
Changes in hedging derivatives:
Reclassifications from AOCI into income (effective portion), Net of Tax		(185)	298	(48)
Pension Liability Adjustment [Member]
Pension liability adjustment:
Tax rate change, Pre-Tax		0	0	0
Pension liability adjustment, Pre-Tax		(3,383)	(7,666)	3,119
Pension liability adjustment:
Tax rate change, Net of Tax		0	0	719
Pension liability adjustment, Net of Tax		(1,858)	(5,817)	1,728
Pension Liability Adjustment [Member] | Selling, General and Administrative Expense [Member]
Pension liability adjustment:
Amortization of prior service cost, Pre-Tax		975	1,001	1,155
Amortization of net loss, Pre-Tax		3,767	3,038	3,873
Expected return on plan assets, Pre-Tax		(255)	(259)	(284)
Actuarial loss, Pre-Tax		(14,866)	(10,876)	(2,317)
Pension liability adjustment:
Amortization of prior service cost, Net of Tax		535	760	374
Amortization of net loss, Net of Tax		2,068	2,305	1,253
Expected return on plan assets, Net of Tax		(140)	(197)	(92)
Actuarial loss, Net of Tax		(8,162)	(8,253)	(750)
Pension Liability Adjustment [Member] | Foreign Exchange Losses, Net [Member]
Pension liability adjustment:
Other gains (losses), Pre-Tax		6,996	(570)	692
Pension liability adjustment:
Other gains (losses), Net of Tax		3,841	(432)	224
Unrealized Gains on Available-for-Sale Securities [Member]
Pension liability adjustment:
Unrealized gains on available-for-sale securities, Pre-Tax		167	287	4,376
Pension liability adjustment:
Unrealized gains on available-for-sale securities, Net of Tax		$ 106	$ 183	$ 4,250

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