Employee Benefit Plans - Schedule of Single Employer Pension Plans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Components of net periodic benefit cost
Pension settlement charge	$ (5,760)	$ 0	$ (5,760)	$ 10,948
Pension Plan
Components of net periodic benefit cost
Service cost	0	0	0	0
Interest cost	1,059	1,173	3,177	4,025
Expected return on plan assets	(1,102)	(1,126)	(3,305)	(4,096)
Amortization of net loss (gain)	370	380	1,109	1,120
Pension settlement charge	0	0	0	10,948
Net periodic benefit cost	$ 327	$ 427	$ 981	$ 11,997
Weighted average assumptions used to determine benefit obligations
Discount rate			3.45%	4.05%
Expected long-term return on plan assets			6.75%	6.75%