Quarterly report [Sections 13 or 15(d)]

Accumulated Other Comprehensive Income - Changes in AOCI by Component (Details)

v3.25.4
Accumulated Other Comprehensive Income - Changes in AOCI by Component (Details) - USD ($)
$ in Thousands
 3 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Attributable to Matthews:    
Beginning balance $ 480,942 $ 437,206
OCI, net of tax 27,806 (12,749)
Ending balance 543,216 413,456
AOCI Attributable to Parent    
Attributable to Matthews:    
Beginning balance (78,010) (168,742)
OCI before reclassification 9,452 (18,803)
Amounts reclassified from AOCI 18,354 6,054
OCI, net of tax 27,806 (12,749)
Ending balance (50,204) (181,491)
Post-retirement benefit plans    
Attributable to Matthews:    
Beginning balance 7,540 4,955
OCI before reclassification (1,121) (181)
Amounts reclassified from AOCI (216) (172)
OCI, net of tax (1,337) (353)
Ending balance 6,203 4,602
Currency translation adjustment    
Attributable to Matthews:    
Beginning balance (84,997) (174,623)
OCI before reclassification 10,620 (21,187)
Amounts reclassified from AOCI 18,719 6,576
OCI, net of tax 29,339 (14,611)
Ending balance (55,658) (189,234)
Cash Flow Hedges    
Attributable to Matthews:    
Beginning balance (553) 926
OCI before reclassification (47) 2,565
Amounts reclassified from AOCI (149) (350)
OCI, net of tax (196) 2,215
Ending balance $ (749) 3,141
AOCI Attributable to Noncontrolling Interest    
Attributable to Matthews:    
Beginning balance   289
OCI before reclassification   0
OCI, net of tax   0
Ending balance   289
Post-retirement benefit plans    
Attributable to Matthews:    
Beginning balance   0
OCI before reclassification   0
OCI, net of tax   0
Ending balance   0
Currency translation adjustment    
Attributable to Matthews:    
Beginning balance   289
OCI before reclassification   0
OCI, net of tax   0
Ending balance   289
Cash Flow Hedges    
Attributable to Matthews:    
Beginning balance   0
OCI before reclassification   0
OCI, net of tax   0
Ending balance   $ 0