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Investment Securities - Investments with Unrealized Loss Positions for total investment securities (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Jun. 30, 2022
Investment Securities    
Unrealized Holding Losses Less Than 12 Months, Fair Value $ 13,332 $ 127,218
Unrealized Holding Losses Less Than 12 Months, Unrealized Losses 208 9,183
Unrealized Holding Losses 12 Months or More, Fair Value 131,816 35,528
Unrealized Holding Losses 12 Months or More, Unrealized Losses 17,303 4,927
Unrealized Holding Losses Total, Fair Value 145,148 162,746
Unrealized Holding Losses Total, Unrealized Losses $ 17,511 $ 14,110