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SEGMENT INFORMATION - Reconciliation of Adjusted EBITDA to Net Income (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2022
Reconciliation Of Adjusted EBITDA To Net Income [Abstract] |  |  |  |  |
Total Adjusted EBITDA |  |  | $ 205,157 | $ 225,809 | $ 210,408
Non-Operating Income and Expenses [Abstract] |  |  |  |  |
Acquisition and divestiture related items |  |  | (5,576) | (5,293) | (7,898)
Strategic initiatives and other charges |  |  | (65,586) | (13,923) | (28,060)
Non-recurring / incremental COVID-19 costs |  |  | 0 | 0 | (2,985)
Highly inflationary accounting losses (primarily non-cash) |  |  | (1,027) | (1,360) | (1,473)
Defined benefit plan termination related items |  |  | 0 | 0 | 429
Asset write-downs, net |  | $ (6,844) | (33,574) | 0 | (92,504)
Goodwill and asset write-downs |  |  | (16,727) | 0 | (82,454)
Stock-based compensation |  |  | (18,478) | (17,308) | (17,432)
Non-service pension and postretirement expense |  |  | (439) | (1,640) | (31,823)
Depreciation and amortization |  |  | (94,770) | (96,530) | (104,056)
Interest expense, including RPA and factoring financing fees |  |  | (55,364) | (48,690) | (28,771)
Net loss attributable to noncontrolling interests |  |  | 0 | (155) | (54)
(Loss) income before income taxes |  |  | (69,657) | 40,910 | (104,219)
Income tax benefit (provision) |  |  | 9,997 | (1,774) | 4,391
Net (loss) income |  |  | (59,660) | 39,136 | (99,828)
Gain on divestitures |  |  | 1,428 | 2,980 | 3,390
Gain (loss) on dispute |  |  | 12,399 |  |
Loss recovery |  |  |  | 2,154 |
RPA financing fees |  |  | 4,830 | 4,042 | 1,046
Selling expense |  |  | 141,875 | 140,119 | 128,362
Administrative expense |  |  | 346,405 | 307,368 | 298,315
Accrued severance and other employee termination benefits | $ 7,321 | 42,245 | 42,245 | 7,321 |
Other Cost Reduction Initiatives, Severance and Other Employee Termination Benefits |  |  | 45,705 | 13,210 | 14,596
Cost of Sales |  |  |  |  |
Non-Operating Income and Expenses [Abstract] |  |  |  |  |
Strategic initiatives and other charges |  |  | (32,526) | (9,028) | (1,777)
Asset write-downs, net |  |  |  |  | (9,686)
Selling Expense |  |  |  |  |
Non-Operating Income and Expenses [Abstract] |  |  |  |  |
Strategic initiatives and other charges |  |  | (1,379) | (1,925) | (267)
Administrative Expense |  |  |  |  |
Non-Operating Income and Expenses [Abstract] |  |  |  |  |
Strategic initiatives and other charges |  |  | (11,800) | (2,257) | (12,552)
Asset write-downs, net |  |  |  |  | (364)
Memorialization |  |  |  |  |
Non-Operating Income and Expenses [Abstract] |  |  |  |  |
Goodwill and asset write-downs |  |  | 0 |  |
Industrial Technologies |  |  |  |  |
Non-Operating Income and Expenses [Abstract] |  |  |  |  |
Goodwill and asset write-downs |  |  | (16,727) |  |
Gain on divestitures | $ 1,827 |  |  | 1,827 |
SGK Brand Solutions |  |  |  |  |
Non-Operating Income and Expenses [Abstract] |  |  |  |  |
Goodwill and asset write-downs |  |  | 0 |  |
Operating Segments | Memorialization |  |  |  |  |
Reconciliation Of Adjusted EBITDA To Net Income [Abstract] |  |  |  |  |
Total Adjusted EBITDA |  |  | 162,586 | 163,986 | 151,849
Non-Operating Income and Expenses [Abstract] |  |  |  |  |
Non-recurring / incremental COVID-19 costs |  |  |  |  | (1,314)
Asset write-downs, net |  | (13,716) |  |  |
Depreciation and amortization |  |  | (27,768) | (23,738) | (23,228)
Acquisition costs, ERP integration costs, and strategic initiatives and other charges |  |  | 3,514 | 1,002 | 3,517
Operating Segments | Industrial Technologies |  |  |  |  |
Reconciliation Of Adjusted EBITDA To Net Income [Abstract] |  |  |  |  |
Total Adjusted EBITDA |  |  | 39,716 | 66,278 | 56,762
Non-Operating Income and Expenses [Abstract] |  |  |  |  |
Non-recurring / incremental COVID-19 costs |  |  |  |  | (6)
Goodwill and asset write-downs |  | (16,727) |  |  |
Depreciation and amortization |  |  | (23,772) | (23,184) | (11,387)
Acquisition costs, ERP integration costs, and strategic initiatives and other charges |  |  | 54,357 | 4,108 | 5,631
Operating Segments | SGK Brand Solutions |  |  |  |  |
Reconciliation Of Adjusted EBITDA To Net Income [Abstract] |  |  |  |  |
Total Adjusted EBITDA |  |  | 61,620 | 57,128 | 60,120
Non-Operating Income and Expenses [Abstract] |  |  |  |  |
Non-recurring / incremental COVID-19 costs |  |  |  |  | (1,199)
Asset write-downs, net |  |  |  |  | (10,050)
Goodwill and asset write-downs |  |  |  |  | 82,454
Depreciation and amortization |  |  | (38,667) | (44,842) | (64,173)
Acquisition costs, ERP integration costs, and strategic initiatives and other charges |  |  | 3,001 | 10,905 | 19,359
Segment Reporting, Reconciling Item, Corporate Nonsegment |  |  |  |  |
Reconciliation Of Adjusted EBITDA To Net Income [Abstract] |  |  |  |  |
Total Adjusted EBITDA |  |  | (58,765) | (61,583) | (58,323)
Non-Operating Income and Expenses [Abstract] |  |  |  |  |
Non-recurring / incremental COVID-19 costs |  |  |  |  | (466)
Depreciation and amortization |  |  | (4,563) | (4,766) | (5,268)
Other investment, impairment charge |  | $ 3,131 |  |  |
Acquisition costs, ERP integration costs, and strategic initiatives and other charges |  |  | $ 10,290 | $ 3,201 | $ 7,451

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