Pension and Post-retirement Benefits - Net Periodic Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 1,482	$ 1,033
Expected return on plan assets	(1,032)	(1,100)
Amortization of net loss	10	14
Total	460	(53)
Post Retirement Medical Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	6	9
Interest cost	18	12
Amortization of prior service credit	(369)	(368)
Amortization of net loss	44	47
Total	$ (301)	$ (300)