Restructuring Plans (Details) $ in Thousands			12 Months Ended			24 Months Ended	44 Months Ended
	Feb. 21, 2017 USD ($)	Feb. 05, 2015	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)
Corporate Relocation Plan
Restructuring Cost and Reserve [Line Items]
Restructuring, number of positions affected		350
Restructuring charges			$ 3,400
Restructuring charges incurred to date			35,200			$ 35,200
DSD Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges			1,771	$ 1,041	$ 1,711	4,583
Restructuring charges settled without cash						0
Restructuring non-cash rent expense	$ 4,500					4,523
Restructuring reserve			29		0	29
Employee-related | Corporate Relocation Plan
Restructuring Cost and Reserve [Line Items]
Restructuring non-cash rent expense							$ 17,400
Employee-related | DSD Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges			1,487	612	506	2,634
Restructuring charges settled without cash						0
Restructuring non-cash rent expense	2,300					2,605
Restructuring reserve			29		0	29
Withdrawal from Multiemployer Defined Benefit Plan [Member] | Corporate Relocation Plan
Restructuring Cost and Reserve [Line Items]
Restructuring non-cash rent expense							3,400
Facility Closing | Corporate Relocation Plan
Restructuring Cost and Reserve [Line Items]
Restructuring depreciation expense							2,300
Restructuring non-cash rent expense							7,000
Other Restructuring | Corporate Relocation Plan
Restructuring Cost and Reserve [Line Items]
Restructuring non-cash rent expense							$ 7,400
Sale-leaseback transaction, rent expense, noncash			1,400
Other Restructuring | DSD Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges			284	$ 429	1,205	1,949
Restructuring charges settled without cash						0
Restructuring non-cash rent expense	$ 2,200					1,918
Restructuring reserve			0		$ 0	0
WCTPP | Employee-related | Corporate Relocation Plan
Restructuring Cost and Reserve [Line Items]
Multiemployer Plans, Withdrawal Obligation, Amount Paid			1,900			1,900
Multiemployer Plans, Withdrawal Obligation, Amount Outstanding			$ 1,500			$ 1,500