Discontinued Operations - Components of Pension Expense (Detail) - Life Sciences and Engineering [Member] - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Type [Extensible List]	us-gaap:PensionPlansDefinedBenefitMember	us-gaap:PensionPlansDefinedBenefitMember
Interest Cost	$ 11	$ 10
Expected return on assets	(11)	(9)
Amortization of prior service cost	11	19
Net pension expense	$ 11	$ 20