RESTRUCTURING AND OTHER RELATED CHARGES (Detail) - Summary of accrued liability for the restructuring and related charges (USD $) In Thousands, unless otherwise specified	3 Months Ended						9 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Jun. 30, 2012	Jun. 30, 2011
Accrued liability at September 30, 2011			$ 2,657				$ 2,657
Charges	0	0	1,795	2,118	1,212	1,393	1,795	4,723
Payments							(3,440)
Accrued liability at June 30, 2012	1,012						1,012
Workforce Reduction [Member]
Accrued liability at September 30, 2011			2,657				2,657
Charges	0	0	1,538	1,134	61	239	1,538	1,434
Payments							(3,205)
Accrued liability at June 30, 2012	990						990
Facilities And Exit Costs [Member]
Accrued liability at September 30, 2011			0				0
Charges	0	0	257	450	470	791	257	1,711
Payments							(235)
Accrued liability at June 30, 2012	22						22
Other Related Costs [Member]
Accrued liability at September 30, 2011			0				0
Charges	0	0	0	534	681	363	0	1,578
Payments							0
Accrued liability at June 30, 2012	$ 0						$ 0