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REPORTABLE SEGMENTS REPORTABLE SEGMENTS (Details) - Schedule of Disaggregated Revenue by Geographic Region $ in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2019 USD ($) | Sep. 30, 2019 CAD ($) | Sep. 30, 2018 USD ($) | Sep. 30, 2018 CAD ($) | Sep. 30, 2017 USD ($)
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | $ 2,209,289 | $ 3,500 | $ 1,977,918 | $ 700 | $ 1,524,997
Consumer And Professional Products Segment [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 1,000,608 |  |  |  |
Home and Building Products (HBP) [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 873,640 |  |  |  |
Defense Electronics Segment [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 335,041 |  |  |  |
UNITED STATES |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 1,737,263 |  |  |  |
UNITED STATES | Consumer And Professional Products Segment [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 690,772 |  |  |  |
UNITED STATES | Home and Building Products (HBP) [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 820,396 |  |  |  |
UNITED STATES | Defense Electronics Segment [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 226,095 |  |  |  |
Europe [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 100,308 |  |  |  |
Europe [Member] | Consumer And Professional Products Segment [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 63,284 |  |  |  |
Europe [Member] | Home and Building Products (HBP) [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 109 |  |  |  |
Europe [Member] | Defense Electronics Segment [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 36,915 |  |  |  |
CANADA |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 122,367 |  |  |  |
CANADA | Consumer And Professional Products Segment [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 72,327 |  |  |  |
CANADA | Home and Building Products (HBP) [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 39,472 |  |  |  |
CANADA | Defense Electronics Segment [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 10,568 |  |  |  |
AUSTRALIA |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 169,019 |  |  |  |
AUSTRALIA | Consumer And Professional Products Segment [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 165,291 |  |  |  |
AUSTRALIA | Home and Building Products (HBP) [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 16 |  |  |  |
AUSTRALIA | Defense Electronics Segment [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 3,712 |  |  |  |
All Other Countries [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 80,332 |  |  |  |
All Other Countries [Member] | Consumer And Professional Products Segment [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 8,934 |  |  |  |
All Other Countries [Member] | Home and Building Products (HBP) [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 13,647 |  |  |  |
All Other Countries [Member] | Defense Electronics Segment [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | $ 57,751 |  |  |  |

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