RESTRUCTURING AND OTHER RELATED CHARGES (Details) - Summary of accrued liability for the restructuring and related charges (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Restructuring Reserve [Roll Forward]
Accrued liability	$ 3,857	$ 3,640
Charges	6,136	8,946
Payments	(4,765)	(8,729)
Accrued liability	5,228	3,857
Workforce Reduction [Member]
Restructuring Reserve [Roll Forward]
Accrued liability	3,057	3,500
Charges	5,382	5,649
Payments	(3,211)	(6,092)
Accrued liability	5,228	3,057
Facilities And Exit Costs [Member]
Restructuring Reserve [Roll Forward]
Accrued liability	393	140
Charges	548	1,668
Payments	(941)	(1,415)
Accrued liability	0	393
Other Related Costs [Member]
Restructuring Reserve [Roll Forward]
Accrued liability	407	0
Charges	206	1,629
Payments	(613)	(1,222)
Accrued liability	$ 0	$ 407