Employee Benefit Plans - Narrative (Details) $ in Thousands		3 Months Ended		9 Months Ended
	Mar. 23, 2020 USD ($)	Mar. 31, 2020 USD ($) shares	Mar. 31, 2019 USD ($) shares	Mar. 31, 2020 USD ($) plan shares	Mar. 31, 2019 USD ($) shares
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Amount		$ 500	$ 700	$ 1,900	$ 1,600
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Reclassification Adjustment, before Tax	$ (13,400)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Increase (Decrease) for Plan Amendment	$ (7,200)
Other Postretirement Benefit Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Multiemployer plans, number of plans | plan				9
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment		$ (5,750)	$ 0	$ (5,750)	$ 0
Restated and Amended 401K Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined contribution plan, employer matching contribution, percent of eligible income				4.00%
Defined Contribution Plan, Number of Shares Contributed | shares		104,247	37,571	213,896	37,571
Defined Contribution Plan, Employer Discretionary Contribution Amount		$ 900	$ 700	$ 2,300	$ 700