Annual report [Section 13 and 15(d), not S-K Item 405]

ACCUMULATED OTHER COMPREHENSIVE INCOME - Reclassifications out of AOCI (Details)

v3.25.3
ACCUMULATED OTHER COMPREHENSIVE INCOME - Reclassifications out of AOCI (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Sep. 30, 2025
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Cost of Revenue   $ (990,096) $ (1,266,030) $ (1,303,224)
Other income (deductions), net   3,651 (6,800) (2,559)
Income (loss) before income taxes   16,209 (69,657) 40,910
Income tax (provision) benefit   (40,680) 9,997 (1,774)
Net (loss) income   (24,471) (59,660) 39,136
Interest expense   62,895 50,534 44,648
SGK Brand Solutions        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Gain on sale of SGK Business   55,139 0 0
Disposal Group, Disposed of by Sale, Not Discontinued Operations | SGK Brand Solutions        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Gain on sale of SGK Business $ 55,139      
Postretirement Benefit Plans | Reclassification out of Accumulated Other Comprehensive Income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Income (loss) before income taxes   913 1,139 (135)
Income tax (provision) benefit   (231) (289) 33
Net (loss) income   682 850 (102)
Prior service (cost) credit | Reclassification out of Accumulated Other Comprehensive Income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Cost of Revenue   362 364 364
Actuarial gains (losses) | Reclassification out of Accumulated Other Comprehensive Income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other income (deductions), net   551 775 772
Settlement losses | Reclassification out of Accumulated Other Comprehensive Income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other income (deductions), net   0 0 (1,271)
Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Income (loss) before income taxes   2,378 3,495 3,785
Income tax (provision) benefit   (600) (884) (959)
Net (loss) income   1,778 2,611 2,826
Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income | Interest Rate Swaps        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Interest expense   1,302 2,679 2,626
Net investment hedge | Reclassification out of Accumulated Other Comprehensive Income | Cross-Currency Swaps        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Interest expense   1,076 816 1,159
Accumulated Other Comprehensive Income, Other | Reclassification out of Accumulated Other Comprehensive Income | Disposal Group, Disposed of by Sale, Not Discontinued Operations | SGK Brand Solutions        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Gain on sale of SGK Business   (92,681) 0 0
Accumulated Other Comprehensive Income, Other | Reclassification out of Accumulated Other Comprehensive Income | Discontinued Operations, Held-for-Sale        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other divestitures   $ (6,844) $ 0 $ 0