Retirement Plans - Amounts Recognized (Details) - Defined benefit pension plan - USD ($) $ in Thousands	Jun. 30, 2023	Jun. 30, 2022
Amounts recognized in accumulated other comprehensive loss (before tax)
Net actuarial gain	$ 2,559	$ 3,723
Prior service credit	195	224
Accumulated other comprehensive income	2,754	3,947
Accumulated benefit obligations in excess of fair value of plan assets:
Projected benefit obligation	19,388	17,453
Accumulated benefit obligation	16,807	15,546
Fair value of plan assets	$ 18,761	$ 17,350

Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets.

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