Segment Data - Sales and Operating (Loss) Income by Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Jun. 30, 2022
Segment Reporting Information [Line Items]
Assets	$ 2,516,208		$ 2,573,524
External sales:
Sales	494,792	$ 483,509
Operating (income) loss:
Total operating income	48,526	54,606
Interest expense	6,638	6,321
Other expense (income), net	1,009	(3,459)
Income before income taxes	40,879	51,744
Infrastructure [Member]
External sales:
Sales	194,856	185,079
Operating (income) loss:
Total operating income	(20,787)	(26,036)
Corporate [Member]
Operating (income) loss:
Total operating income	866	594
Metal Cutting
External sales:
Sales	299,936	298,430
Operating (income) loss:
Total operating income	$ (28,605)	$ (29,164)