Employee Benefit Plans - Components of Net Periodic Benefit Costs (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |
---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2021 |
Jun. 30, 2020 |
|
Defined Benefit Plan Disclosure | |||
Interest cost | $ 3,437 | $ 4,236 | |
Amortization of net gain | 2,010 | 1,479 | |
Net periodic benefit cost | 1,296 | 1,309 | |
Other Postretirement Benefits Plan | |||
Defined Benefit Plan Disclosure | |||
Service cost | $ 530 | 19 | 446 |
Interest cost | 887 | 293 | 725 |
Amortization of net gain | (834) | (5,296) | (3,067) |
Curtailment credit - Retiree Medical | 0 | 0 | 5,750 |
Amortization of prior service credit | (1,757) | (8,961) | (5,666) |
Settlement credit - Retiree Medical | 0 | (6,669) | 0 |
Net periodic benefit cost | $ (1,174) | $ (20,614) | $ (13,312) |
X | ||||||||||
- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
X | ||||||||||
- Definition Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
X | ||||||||||
- Definition Amount of transition asset (obligation) recognized in net periodic benefit (cost) credit of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
X | ||||||||||
- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
X | ||||||||||
- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
X | ||||||||||
- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
X | ||||||||||
- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
X | ||||||||||
- Details
|