Pension and Other Postretirement Benefits - Amounts Related to Defined Pension Plans Recognized in Accumulated Other Comprehensive (Loss) Income (Details) - Pension plans contribution - USD ($) $ in Thousands |
Jun. 30, 2026 |
Jun. 30, 2025 |
|---|---|---|
| Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract] | ||
| Unrecognized net actuarial losses | $ 272,996 | $ 292,946 |
| Unrecognized net prior service costs | 1,748 | 1,762 |
| Total | $ 274,744 | $ 294,708 |
| X | ||||||||||
- Definition Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|