v3.25.4
Accumulated Other Comprehensive Loss - Reclassifications (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2025
Dec. 31, 2024
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items]        
Currency exchange contracts $ 2,097 $ 1,477 $ 4,418 $ 3,136
Recognition of actuarial losses (2,880) (2,076) (5,767) (4,984)
Provision for income taxes 13,472 7,927 22,535 15,833
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax 29 224 249 519
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax 7 55 61 127
Reclassification of unrealized gain on derivatives designated and qualified as cash flow hedges (22) (169) (188) (392)
Unrecognized net pension and other postretirement benefit (loss) gain, before tax (178) 4,313 681 844
Unrecognized net pension and other postretirement benefit (loss) gain, tax (44) 1,122 170 228
Unrecognized net pension and other postretirement benefit plans (loss) gain (134) 3,191 511 616
Reclassification of net pension and other postretirement benefit loss, tax (708) (537) (1,243) (1,260)
Reclassification of net pension and other postretirement benefit plans loss 2,172 1,539 4,524 3,724
Foreign currency translation adjustments, before tax 2,984 (56,998) (269) (21,960)
Foreign currency translation adjustments, tax 0 0 0 0
Foreign currency translation adjustments 2,984 (56,998) (269) (21,960)
Other comprehensive income (loss), before tax 5,411 (49,285) 5,673 (15,214)
Other comprehensive income (loss), tax (597) (1,983) (1,289) (1,713)
Other comprehensive income (loss), net of tax 4,814 (51,268) 4,384 (16,927)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax (246) 1,548 (257) 1,437
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax (60) 379 (63) 352
Unrealized (loss) gain on derivatives designated and qualified as cash flow hedges (186) 1,169 (194) 1,085
Reclassification out of Accumulated Other Comprehensive Loss | Derivatives attributable to noncontrolling interests        
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items]        
Total before tax 29 224 249 519
Net of tax (22) (169) (188) (392)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax 7 55 61 127
Reclassification out of Accumulated Other Comprehensive Loss | Pension and other postretirement benefits attributable to Kennametal        
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items]        
Amortization of prior service credit (67) (65) (135) (132)
Recognition of actuarial losses 2,947 2,141 5,902 4,280
Total before tax 2,880 2,076 5,767 4,984
Provision for income taxes (708) (537) (1,243) (1,260)
Net of tax (2,172) (1,539) (4,524) (3,724)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, Tax 0 0 0 836
Reclassification out of Accumulated Other Comprehensive Loss | Forward starting interest rate swaps | Derivatives attributable to noncontrolling interests        
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items]        
Forward starting interest rate swaps (255) (255) (511) (511)
Reclassification out of Accumulated Other Comprehensive Loss | Currency exchange contracts | Derivatives attributable to noncontrolling interests        
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items]        
Currency exchange contracts $ 226 $ 31 $ 262 $ (8)