Other Comprehensive Income (Loss) - Schedule of Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Pension liability adjustment:
Other comprehensive income (loss), Pre-Tax		$ 3,630	$ 4,631	$ (43,268)	$ 33,497
Other comprehensive loss attributable to noncontrolling interest, Pre-Tax		0	(4)	0	0
Other comprehensive income (loss) attributable to Harman International Industries, Incorporated, Pre-Tax		3,630	4,635	(43,268)	33,497
Foreign currency translation losses, Net of Tax	[1]	(19,924)	(46,260)	(53,247)	(127,675)
Changes in hedging derivatives:
Reclassifications from AOCI into income (effective portion), Net of Tax		21,061	7,518	43,313	6,768
Unrealized gains on hedging derivatives, Net of Tax	[1]	16,301	36,302	6,718	118,166
Pension liability adjustment:
Pension liability adjustment, Net of Tax	[1]	2,018	2,291	1,335	3,268
Unrealized gains (losses) on available-for-sale securities, Net of Tax	[1]	34	13	(51)	52
Other comprehensive (loss) income, net of taxes	[1]	(1,571)	(7,654)	(45,245)	(6,189)
Other comprehensive loss attributable to noncontrolling interest, Net of Tax		0	(4)	0	0
Other comprehensive (loss) income, net of taxes attributable to Harman International Industries, Incorporated		(1,571)	(7,650)	(45,245)	(6,189)
Cumulative Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Foreign currency translation losses, Pre-Tax		(19,924)	(46,260)	(53,247)	(127,675)
Pension liability adjustment:
Foreign currency translation losses, Net of Tax		(19,924)	(46,260)	(53,247)	(127,675)
Unrealized Gains on Hedging Derivatives [Member]
Changes in hedging derivatives:
Gains recognized in AOCI (effective portion)), Pre-Tax		41,467	55,680	51,448	163,111
Other gains (losses), Pre-Tax		87	89	23	(89)
Unrealized gains on hedging derivatives, Pre-Tax		20,493	48,251	8,158	156,432
Changes in hedging derivatives:
Gains recognized in AOCI (effective portion), Net of Tax		32,984	41,985	42,367	123,282
Other gains (losses), Net of Tax		69	1	19	0
Unrealized gains on hedging derivatives, Net of Tax		16,301	36,302	6,718	118,166
Unrealized Gains 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		(21,042)	(7,353)	(43,299)	(6,550)
Changes in hedging derivatives:
Reclassifications from AOCI into income (effective portion), Net of Tax		(16,737)	(5,558)	(35,656)	(4,951)
Unrealized Gains 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		(24)	(165)	(24)	(218)
Changes in hedging derivatives:
Reclassifications from AOCI into income (effective portion), Net of Tax		(19)	(126)	(20)	(165)
Unrealized Gains on Hedging Derivatives [Member] | Interest Expense, Net [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Changes in hedging derivatives:
Reclassifications from AOCI into income (effective portion), Pre-Tax		5	0	10	0
Changes in hedging derivatives:
Reclassifications from AOCI into income (effective portion), Net of Tax		4	0	8	0
Pension Liability Adjustment [Member]
Pension liability adjustment:
Pension liability adjustment, Pre-Tax		3,008	2,619	1,902	4,659
Pension liability adjustment:
Pension liability adjustment, Net of Tax		2,018	2,291	1,335	3,268
Pension Liability Adjustment [Member] | Selling, General and Administrative Expense [Member]
Pension liability adjustment:
Amortization of prior service cost, Pre-Tax		247	244	494	487
Amortization of net loss, Pre-Tax		1,309	981	2,624	1,929
Expected return on plan assets, Pre-Tax		(31)	(63)	(62)	(129)
Pension liability adjustment:
Amortization of prior service cost, Net of Tax		166	172	347	342
Amortization of net loss, Net of Tax		878	689	1,842	1,353
Expected return on plan assets, Net of Tax		(21)	(44)	(44)	(90)
Pension Liability Adjustment [Member] | Foreign Exchange Losses (Gains), Net [Member]
Pension liability adjustment:
Other gains (losses), Pre-Tax		1,483	1,457	(1,154)	2,372
Pension liability adjustment:
Other gains (losses), Net of Tax		995	1,474	(810)	1,663
Unrealized Gains (Losses) on Available-for-Sale Securities [Member]
Pension liability adjustment:
Unrealized gains (losses) on available-for-sale securities, Pre-Tax		53	21	(81)	81
Pension liability adjustment:
Unrealized gains (losses) on available-for-sale securities, Net of Tax		$ 34	$ 13	$ (51)	$ 52

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