RESTRUCTURING AND OTHER RELATED CHARGES (Detail) - Summary of accrued liability for the restructuring and related charges (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Mar. 31, 2013	Sep. 30, 2012
Accrued liability	$ 6,632	$ 3,640
Charges	6,943
Payments	(3,951)
Workforce Reduction [Member]
Accrued liability	5,417	3,500
Charges	4,789
Payments	(2,872)
Facilities And Exit Costs [Member]
Accrued liability	469	140
Charges	562
Payments	(233)
Other Related Costs [Member]
Accrued liability	746	0
Charges	1,592
Payments	$ (846)