Employee Benefit Plans - Schedule of Single Employer Pension Plans (Details) - Pension Plan - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Components of net periodic benefit cost
Service cost	$ 0	$ 0	$ 0	$ 0
Interest cost	859	1,059	1,718	2,118
Expected return on plan assets	(1,038)	(1,102)	(2,075)	(2,203)
Amortization of net loss (gain)	502	370	1,005	740
Net periodic benefit cost	$ 323	$ 327	$ 648	$ 655
Weighted average assumptions used to determine benefit obligations
Discount rate			2.55%	3.45%
Expected long-term return on plan assets			6.25%	6.75%