Discontinued Operations - Components of Pension Expense (Detail) - Life Sciences and Engineering [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Interest Cost	$ 10	$ 13	$ 32	$ 39
Expected return on assets	(9)	(11)	(27)	(32)
Amortization of prior service cost	0	0	0	0
Net pension expense	$ 1	$ 2	$ 5	$ 7