Changes in Carrying Amount of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified							6 Months Ended
	Dec. 31, 2012	Jun. 30, 2012	Dec. 31, 2012 ACS	Jun. 30, 2012 ACS	Dec. 31, 2012 MFS	Jun. 30, 2012 MFS	Dec. 31, 2012 Micronetics	Dec. 31, 2012 Micronetics ACS	Dec. 31, 2012 Micronetics MFS	Dec. 31, 2012 KOR Electronics	Dec. 31, 2012 KOR Electronics ACS	Dec. 31, 2012 KOR Electronics MFS
Goodwill [Line Items]
Beginning Balance	$ 178,429	$ 132,621	$ 159,279	$ 113,471	$ 19,150	$ 19,150
Goodwill							46,509	46,509
Goodwill Adjustment										(701)	(701)
Ending Balance	$ 178,429	$ 132,621	$ 159,279	$ 113,471	$ 19,150	$ 19,150