Financial Results in Discontinued Operations (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations, net of tax	$ 207	$ (2,238)
ASC group
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales		2,727
Income (loss) before income tax provision		180
Income tax provision (benefit)		48
Income (loss) from operations, net of tax		132
Gain (loss) on sale of discontinued operations, net of tax		2,362
Income (loss) from discontinued operations, net of tax		2,494
Repair group
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	1,339	1,255
Income (loss) before income tax provision	(331)	(442)
Income tax provision (benefit)	(124)	(186)
Income (loss) from discontinued operations, net of tax	$ (207)	$ (256)