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Deposits - Interest Expense (Detail) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2013
Deposits [Line Items]      
Interest Expense on Deposits $ 15,939 $ 14,538 $ 14,711
Demand [Member]      
Deposits [Line Items]      
Interest Expense on Deposits 3,961 3,790 1,847
Savings and club [Member]      
Deposits [Line Items]      
Interest Expense on Deposits 819 739 878
Certificates of deposit [Member]      
Deposits [Line Items]      
Interest Expense on Deposits $ 11,159 $ 10,009 $ 11,986