Segments and Related Information - Schedule of Segment Assets (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Jun. 30, 2012
Segment Reporting Information [Line Items]
Total assets	$ 3,745,878	$ 3,611,503
Connector [Member]
Segment Reporting Information [Line Items]
Total assets	1,922,212	1,846,636
Custom & Electrical [Member]
Segment Reporting Information [Line Items]
Total assets	494,055	479,318
Corporate & Other [Member]
Segment Reporting Information [Line Items]
Total assets	97,961	107,699
Segment assets [Member]
Segment Reporting Information [Line Items]
Total assets	$ 2,514,228	$ 2,433,653