Discontinued Operations - Components of Pension Expense (Detail) - Life Sciences and Engineering [Member] - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Defined Benefit Plan Disclosure [Line Items]
Interest Cost	$ 11	$ 13
Expected return on assets	(9)	(11)
Amortization of prior service cost	0	0
Net pension expense	$ 2	$ 2