RESTRUCTURING CHARGES (Restructuring Charges Included in our Unaudited Consolidated Statements of Operations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Mar. 31, 2015	Mar. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 1,193	$ 1,611
Cost of Maintenance and Services [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	353	379
Selling and Marketing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	629	685
Engineering and Product Development [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	60	312
General and Administrative [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	151	235
Restructuring Plans Initiated During the First Fiscal Quarter of 2015 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	343	761
Restructuring Plans Initiated During the First Fiscal Quarter of 2015 [Member] | Cost of Maintenance and Services [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	134	160
Restructuring Plans Initiated During the First Fiscal Quarter of 2015 [Member] | Selling and Marketing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	191	247
Restructuring Plans Initiated During the First Fiscal Quarter of 2015 [Member] | Engineering and Product Development [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	14	266
Restructuring Plans Initiated During the First Fiscal Quarter of 2015 [Member] | General and Administrative [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	4	88
Restructuring Plans Initiated During the Second Fiscal Quarter of 2015 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	850	850
Restructuring Plans Initiated During the Second Fiscal Quarter of 2015 [Member] | Cost of Maintenance and Services [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	219	219
Restructuring Plans Initiated During the Second Fiscal Quarter of 2015 [Member] | Selling and Marketing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	438	438
Restructuring Plans Initiated During the Second Fiscal Quarter of 2015 [Member] | Engineering and Product Development [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	46	46
Restructuring Plans Initiated During the Second Fiscal Quarter of 2015 [Member] | General and Administrative [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 147	$ 147