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v3.25.2

Pension and Other Postretirement Benefits - Hierarchy of Fair Value of the Benefit Plan Assets (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Jun. 30, 2024
--- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plans', Fair Value of Plan Assets | $ 629,588 | $ 636,088
Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plans', Fair Value of Plan Assets | 11 | 6,408
Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plans', Fair Value of Plan Assets | 542,896 | 550,157
NAV [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plans', Fair Value of Plan Assets | 86,681 | 79,523
Corporate Fixed Income Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plans', Fair Value of Plan Assets | 321,975 | 329,284
Corporate Fixed Income Securities [Member] | Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plans', Fair Value of Plan Assets | 321,975 | 329,284
Mutual Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plans', Fair Value of Plan Assets | 36,643 | 28,721
Mutual Funds [Member] | NAV [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plans', Fair Value of Plan Assets | 36,643 | 28,721
Blend Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plans', Fair Value of Plan Assets | 50,038 | 50,802
Blend Funds [Member] | NAV [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plans', Fair Value of Plan Assets | 50,038 | 50,802
Common Stock [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plans', Fair Value of Plan Assets | 11 | 6,408
Common Stock [Member] | Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plans', Fair Value of Plan Assets | 11 | 6,408
US Government Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plans', Fair Value of Plan Assets | 103,056 | 102,806
US Government Securities [Member] | Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plans', Fair Value of Plan Assets | 103,056 | 102,806
Foreign Government Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plans', Fair Value of Plan Assets | 1,353 | 63,234
Foreign Government Securities [Member] | Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plans', Fair Value of Plan Assets | 1,353 | 63,234
Other Fixed Income Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plans', Fair Value of Plan Assets | 31,475 | 30,756
Other Fixed Income Securities [Member] | Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plans', Fair Value of Plan Assets | 31,475 | 30,756
Other [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plans', Fair Value of Plan Assets | 85,037 | 24,077
Other [Member] | Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plans', Fair Value of Plan Assets | 0 | 0
Other [Member] | Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plans', Fair Value of Plan Assets | $ 85,037 | $ 24,077

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