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Discontinued Operations - Components of Pension Expense (Detail) - Life Sciences and Engineering [Member] - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2016
Mar. 31, 2015
Defined Benefit Plan Disclosure [Line Items]        
Interest Cost $ 16 $ 16 $ 48 $ 49
Expected return on assets (7) (7) (24) (22)
Amortization of prior service cost 22 23 83 70
Net pension expense $ 31 $ 32 $ 107 $ 97