Discontinued Operations - Components of Pension Expense (Detail) - Life Sciences and Engineering [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Interest Cost	$ 11	$ 13	$ 22	$ 26
Expected return on assets	(9)	(10)	(18)	(21)
Amortization of prior service cost	0	0	0	0
Net pension expense	$ 2	$ 3	$ 4	$ 5