New Accounting Standards - Additional Information (Detail)	9 Months Ended
Mar. 31, 2013
Goodwill And Intangible Assets Disclosure [Abstract]
Minimum percentage of likelihood for the determination of more-likely-than-not that an indefinite-lived intangible asset	50.00%

Minimum percentage of likelihood for the determination of more-likely-than-not threshold for goodwill impairment.

No definition available.

Name:	har_MinimumPercentageOfLikelihoodForDeterminationOfMoreLikelyThanNotThresholdForGoodwillImpairment
Namespace Prefix:	har_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration