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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
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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

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- Definition Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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