Property, Plant And Equipment (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Property, Plant and Equipment [Line Items]
Land and improvements	$ 2,236	$ 2,043
Buildings and improvements	78,149	72,474
Machinery and equipment	228,564	197,136
Construction in progress	17,614	12,862
Property, plant & equipment, gross	326,563	284,515
Less accumulated depreciation	(172,645)	(146,380)
Property, plant & equipment, net	153,918	138,135
Depreciation expense	$ 30,242	$ 25,669	$ 19,127