ACQUISITIONS (Details) - Summary of Fair Values of Assets Acquired - USD ($) $ in Thousands	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014	May 21, 2014	Dec. 31, 2013
ACQUISITIONS (Details) - Summary of Fair Values of Assets Acquired [Line Items]
Goodwill	$ 361,185	$ 356,241	$ 374,111
2014 Acquirees [Member]
ACQUISITIONS (Details) - Summary of Fair Values of Assets Acquired [Line Items]
Current Assets and Other, net of cash acquired	28,514
PP&E	1,873
Goodwill	24,841
Amortizable intangible assets	17,706
Indefinite life intangible assets	6,669
Total assets acquired	79,603
Total liabilities assumed	(18,297)
Net assets acquired	$ 61,306
Cyclone [Member]
ACQUISITIONS (Details) - Summary of Fair Values of Assets Acquired [Line Items]
Current Assets and Other, net of cash acquired				$ 21,116
PP&E				488
Goodwill				13,587
Amortizable intangible assets				11,608
Indefinite life intangible assets				3,548
Total assets acquired				50,347
Total liabilities assumed				(10,822)
Net assets acquired				$ 39,525
Northcote Pottery [Member]
ACQUISITIONS (Details) - Summary of Fair Values of Assets Acquired [Line Items]
Current Assets and Other, 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