Financial Results in Discontinued Operations (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Discontinued Operations and Disposal Groups [Abstract]
Net sales	$ 0	$ 3,690	$ 2,727	$ 11,410
Income before income tax provision	0	369	180	1,354
Income tax provision	79	30	127	390
Income (loss) from operations, net of tax	(79)	339	53	964
Gain (loss) on sale of discontinued operations, net of tax	0	0	2,328	0
Income (loss) from discontinued operations, net of tax	$ (79)	$ 339	$ 2,381	$ 964