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Discontinued Operations - Components of Pension Expense (Detail) - Life Sciences and Engineering [Member] - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Defined Benefit Plan Disclosure [Line Items]    
Interest Cost $ 13 $ 16
Expected return on assets (8) (8)
Amortization of prior service cost 32 28
Net pension expense $ 37 $ 36