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Revenue Recognition and Accounts Receivable - Summary Information for Receivables (Detail) - USD ($)
$ in Thousands
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
Receivables [Abstract]      
Patient accounts receivable (net of contractual allowances) $ 6,458 $ 7,157  
Less allowance for doubtful accounts (552) (991) $ (2,770)
Patient accounts receivable-net $ 5,906 $ 6,166