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REPORTABLE SEGMENTS (Details) - Schedule of Summary of Reconciliation of Segment Profit Before Taxes and Operations - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2016
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue | $ 545,505,000 | $ 516,550,000 | $ 478,560,000 | $ 437,303,000 | $ 430,799,000 | $ 358,114,000 | $ 383,807,000 | $ 352,277,000 | $ 1,977,918,000 | $ 1,524,997,000 | $ 1,477,035,000
Income from continuing operations |  |  |  |  |  |  |  |  | 96,450,000 | 69,027,000 | 82,340,000
Net interest expense |  |  |  |  |  |  |  |  | (63,871,000) | (51,449,000) | (49,877,000)
Unallocated amounts |  |  |  |  |  |  |  |  | (45,812,000) | (42,398,000) | (40,393,000)
Acquisition costs |  | (2,320,000) | $ (378,000) | $ (2,348,000) |  |  |  |  |  | (6,145,000) |
Special Dividend ESOP Charges |  | (2,125,000) |  |  |  |  |  |  |  |  |
Income (loss) before taxes from continuing operations |  |  |  |  |  |  |  |  | 33,810,000 | 16,698,000 | 32,213,000
Loss on pension settlement |  |  |  |  |  |  |  |  | 0 | 5,137,000 | 0
Equity Offering Costs |  | $ (795) |  |  |  |  |  |  | (1,205,000) | 0 | 0
Total Segment adjusted EBITDA from continuing operations |  |  |  |  |  |  |  |  | 213,463,000 | 172,697,000 | 168,334,000
Segment depreciation and amortization |  |  |  |  |  |  |  |  | (55,334,000) | (47,398,000) | (45,851,000)
Acquisition costs |  |  |  |  |  |  |  |  | (7,597,000) | (9,617,000) | 0
Income (loss) before taxes from continuing operations |  |  |  |  |  |  |  |  | 33,810,000 | 16,698,000 | 32,213,000
Consolidated depreciation and amortization |  |  |  |  |  |  |  |  | 55,803,000 | 47,878,000 | 46,342,000
Capital expenditures |  |  |  |  |  |  |  |  | 50,138,000 | 34,937,000 | 59,276,000
AMES [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 953,612,000 | 545,269,000 | 513,973,000
CBP [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 697,969,000 | 568,001,000 | 527,370,000
Home & Building Products [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 1,651,581,000 | 1,113,270,000 | 1,041,343,000
Segment adjusted EBITDA |  |  |  |  |  |  |  |  | 177,400,000 | 126,766,000 | 114,949,000
Segment depreciation and amortization |  |  |  |  |  |  |  |  | (44,533,000) | (36,547,000) | (35,267,000)
Capital expenditures |  |  |  |  |  |  |  |  | 36,587,000 | 24,476,000 | 49,351,000
Telephonics [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 326,337,000 | 411,727,000 | 435,692,000
Segment adjusted EBITDA |  |  |  |  |  |  |  |  | 36,063,000 | 45,931,000 | 53,385,000
Segment depreciation and amortization |  |  |  |  |  |  |  |  | (10,801,000) | (10,851,000) | (10,584,000)
Capital expenditures |  |  |  |  |  |  |  |  | 10,941,000 | 8,204,000 | 9,007,000
Operating [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  | 47,528,000 | 32,680,000 | 58,358,000
Corporate [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consolidated depreciation and amortization |  |  |  |  |  |  |  |  | 469,000 | 480,000 | 491,000
Capital expenditures |  |  |  |  |  |  |  |  | 2,610,000 | 2,257,000 | 918,000
Continuing Operations [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Segment operating profit from continuing operations |  |  |  |  |  |  |  |  | 155,749,000 | 119,438,000 | 122,483,000
Net interest expense |  |  |  |  |  |  |  |  | (63,871,000) | (51,449,000) | (49,877,000)
Unallocated amounts |  |  |  |  |  |  |  |  | (45,812,000) | (42,398,000) | (40,393,000)
Acquisition costs |  |  |  |  |  |  |  |  | (5,217,000) | (8,893,000) | 0
Special Dividend ESOP Charges |  |  |  |  |  |  |  |  | (3,220,000) | 0 | 0
Income (loss) before taxes from continuing operations |  |  |  |  |  |  |  |  | 33,810,000 | 16,698,000 | 32,213,000
Equity Offering Costs |  |  |  |  |  |  |  |  | (1,205,000) | 0 | 0
Continuing Operations [Member] | Home & Building Products [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations |  |  |  |  |  |  |  |  | 130,487,000 | 89,495,000 | 79,682,000
Continuing Operations [Member] | Telephonics [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations |  |  |  |  |  |  |  |  | 25,262,000 | 29,943,000 | 42,801,000
Postretirement Life Insurance [Member] | Continuing Operations [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Loss on pension settlement |  |  |  |  |  |  |  |  | $ (2,614,000) | $ 0 | $ 0

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