Accumulated Other Comprehensive (Loss) Income - Components of and Changes in AOCL (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive (Loss) Income	$ (413,951)
Other comprehensive (loss) income, net of tax	(984)	$ (87,189)	$ 88,844
Accumulated Other Comprehensive (Loss) Income	(414,343)	(413,951)
Post-retirement Benefit Plans [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive (Loss) Income	(208,406)	(213,172)	(232,634)
Net current period other comprehensive loss	(7,029)	4,766	19,462
Other comprehensive loss before reclassifications	(10,402)	(4,163)	9,107
Amounts reclassified from accumulated other comprehensive loss	3,373	8,929	10,355
Accumulated Other Comprehensive (Loss) Income	(215,435)	(208,406)	(213,172)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive (Loss) Income	(210,048)	(122,428)	(181,027)
Net current period other comprehensive loss	7,407	(87,620)	58,599
Other comprehensive loss before reclassifications	7,407	(87,620)	58,599
Amounts reclassified from accumulated other comprehensive loss		0	0
Accumulated Other Comprehensive (Loss) Income	(202,641)	(210,048)	(122,428)
Derivatives [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive (Loss) Income	4,503	5,273	(3,581)
Net current period other comprehensive loss	(770)	(770)	8,854
Other comprehensive loss before reclassifications	0	0	9,255
Amounts reclassified from accumulated other comprehensive loss	(770)	(770)	(401)
Accumulated Other Comprehensive (Loss) Income	3,733	4,503	5,273
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive (Loss) Income	(413,951)	(330,327)	(417,242)
Net current period other comprehensive loss	(392)	(83,624)	86,915
Other comprehensive loss before reclassifications	(2,995)	(91,783)	76,961
Amounts reclassified from accumulated other comprehensive loss	2,603	8,159	9,954
Other comprehensive (loss) income, net of tax	(392)	(83,624)	86,915
Accumulated Other Comprehensive (Loss) Income	(414,343)	(413,951)	(330,327)
Accumulated Foreign Currency Adjustment Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive (Loss) Income	(7,547)	(3,982)	(5,909)
Other comprehensive loss before reclassifications	(592)	(3,565)	1,927
Other comprehensive (loss) income, net of tax	(592)	(3,565)	1,927
Accumulated Other Comprehensive (Loss) Income	(8,139)	(7,547)	(3,982)
AOCI Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive (Loss) Income	(7,547)	(3,982)	(5,909)
Other comprehensive loss before reclassifications	(592)	(3,565)	1,927
Other comprehensive (loss) income, net of tax	(592)	(3,565)	1,927
Accumulated Other Comprehensive (Loss) Income	$ (8,139)	$ (7,547)	$ (3,982)