ACQUISITIONS (Details) - Summary of Fair Values of Assets Acquired - USD ($) $ in Thousands	Jun. 30, 2015	Sep. 30, 2014	Jun. 30, 2014	May. 21, 2014
Business Acquisition [Line Items]
GOODWILL	$ 362,745	$ 375,294
Recent Acquirees [Member]
Business Acquisition [Line Items]
GOODWILL	$ 26,024
Cyclone [Member]
Business Acquisition [Line Items]
Current Assets, net of cash acquired				$ 21,116
PP&E				488
GOODWILL				14,770
Amortizable intangible assets				11,608
Indefinite life intangible assets				3,548
Total assets acquired				51,530
Total liabilities assumed				(12,005)
Net assets acquired				$ 39,525
Northcote [Member]
Business Acquisition [Line Items]
Current Assets, net of cash acquired			$ 7,398
PP&E			1,385
GOODWILL			11,254
Amortizable intangible assets			6,098
Indefinite life intangible assets			3,121
Total assets acquired			29,256
Total liabilities assumed			(7,475)
Net assets acquired			$ 21,781
2014 Acquirees [Member]
Business Acquisition [Line Items]
Current Assets, net of cash acquired		28,514
PP&E		1,873
GOODWILL		26,024
Amortizable intangible assets		17,706
Indefinite life intangible assets		6,669
Total assets acquired		80,786
Total liabilities assumed		(19,480)
Net assets acquired		$ 61,306