Financial Results in Discontinued Operations (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations, net of tax			$ 368	$ (1,518)
ASC group
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales		0		2,727
Income (loss) before income tax provision		0		180
Income tax provision (benefit)		79		127
Income (loss) from operations, net of tax		(79)		53
Gain (loss) on sale of discontinued operations, net of tax		0		2,328
Income (loss) from discontinued operations, net of tax		(79)		2,381
Repair group
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	0	1,612	1,339	4,457
Income (loss) before income tax provision	(109)	(494)	(576)	(1,430)
Income tax provision (benefit)	(33)	(186)	(208)	(567)
Income (loss) from discontinued operations, net of tax	$ (76)	$ (308)	$ (368)	$ (863)