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COMMITMENTS AND CONTINGENT LIABILITIES (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2014 | Aug. 31, 2009
Commitments and Contingencies Disclosure [Abstract] |  |  |  |
Operating leases, rent expense, net | $ 29,166,000 | $ 29,556,000 | $ 27,784,000 |
Aggregate future minimum lease payments for operating leases in 2015 | 24,914,000 |  |  |
Aggregate future minimum lease payments for operating leases in 2016 | 23,887,000 |  |  |
Aggregate future minimum lease payments for operating leases in 2017 | 20,368,000 |  |  |
Aggregate future minimum lease payments for operating leases in 2018 | 15,299,000 |  |  |
Aggregate future minimum lease payments for operating leases in 2019 | 7,864,000 |  |  |
Aggregate future minimum lease payments for operating leases thereafter | 13,810,000 |  |  |
Net capital cost value |  |  |  | $ 5,000,000
Obligation under consent order | 0 |  |  |
Net capital cost value in proposed remedial action plan |  |  |  | $ 10,000,000
Loss contingency claim asserted | $ 0 |  |  |

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- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 + Details
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- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 + Details
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