Property, Plant and Equipment (Detail) - Property plant and equipment (USD $) In Thousands, unless otherwise specified					3 Months Ended				3 Months Ended				3 Months Ended
	Mar. 31, 2013	Jun. 30, 2012	Mar. 31, 2013 Land Improvements [Member]	Jun. 30, 2012 Land Improvements [Member]	Mar. 31, 2013 Building and Building Improvements [Member] Minimum [Member]	Mar. 31, 2013 Building and Building Improvements [Member] Maximum [Member]	Mar. 31, 2013 Building and Building Improvements [Member]	Jun. 30, 2012 Building and Building Improvements [Member]	Mar. 31, 2013 Machinery Equipment And Office Furniture [Member] Minimum [Member]	Mar. 31, 2013 Machinery Equipment And Office Furniture [Member] Maximum [Member]	Mar. 31, 2013 Machinery Equipment And Office Furniture [Member]	Jun. 30, 2012 Machinery Equipment And Office Furniture [Member]	Mar. 31, 2013 Leasehold Improvements [Member] Minimum [Member]	Mar. 31, 2013 Leasehold Improvements [Member] Maximum [Member]	Mar. 31, 2013 Leasehold Improvements [Member]	Jun. 30, 2012 Leasehold Improvements [Member]	Mar. 31, 2013 Construction in Progress [Member]	Jun. 30, 2012 Construction in Progress [Member]
Property, Plant and Equipment, Gross	$ 92,575	$ 89,106	$ 4,030	$ 4,030			$ 24,740	$ 24,228			$ 61,728	$ 58,259			$ 1,097	$ 964	$ 980	$ 1,625
Property, Plant and Equipment, Useful Life					15 years	40 years			3 years	8 years			1 year	5 years
Accumulated depreciation	(58,649)	(55,412)
	$ 33,926	$ 33,694