Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended									12 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017	Jul. 01, 2019
Property, Plant and Equipment
Defined contribution plan, employer matching contribution, percent of eligible income										6.00%
Cost of goods sold	$ 104,327	$ 106,779	$ 96,806	$ 106,529	$ 99,205		$ 105,629	$ 111,089	$ 85,630	$ 416,840	$ 399,155	$ 354,649
Selling expenses	28,324	$ 34,422	40,655	$ 39,591	$ 37,310		$ 37,754	$ 42,127	$ 32,856	$ 139,647	$ 153,391	$ 133,534
Concentration risk (percent)										100.00%	100.00%	100.00%
Undiscounted workers' compensation liability	6,300		7,100							$ 6,300	$ 7,100
Reinsurance recoveries	900		900							900	900
Liability for Claims and Claims Adjustment Expense	1,000		1,700							$ 1,000	1,700
Cash [Member]
Property, Plant and Equipment
Letter of credit posted as security deposit	1,400										2,300
Security Deposit - Letter of Credit
Property, Plant and Equipment
Letter of credit posted as security deposit	2,300										2,000
Workforce Subject to Collective Bargaining Arrangements
Property, Plant and Equipment
Concentration risk (percent)										28.00%
Health Insurance Product Line
Property, Plant and Equipment
Self Insurance Reserve	1,600		900							$ 1,600	$ 900
Coffee Brewing Equipment and Service
Property, Plant and Equipment
Cost of goods sold	33,900		30,200			$ 26,300
Shipping and Handling [Member]
Property, Plant and Equipment
Selling expenses	$ 11,400		$ 11,900			$ 10,700
Building and Facilities | Maximum
Property, Plant and Equipment
Property, plant and equipment useful life										30 years
Building and Facilities | Minimum
Property, Plant and Equipment
Property, plant and equipment useful life										10 years
Machinery and Equipment | Maximum
Property, Plant and Equipment
Property, plant and equipment useful life										10 years
Machinery and Equipment | Minimum
Property, Plant and Equipment
Property, plant and equipment useful life										3 years
Office Furniture and Equipment | Maximum
Property, Plant and Equipment
Property, plant and equipment useful life										7 years
Office Furniture and Equipment | Minimum
Property, Plant and Equipment
Property, plant and equipment useful life										5 years
Capitalized Software Costs | Maximum
Property, Plant and Equipment
Property, plant and equipment useful life										5 years
Capitalized Software Costs | Minimum
Property, Plant and Equipment
Property, plant and equipment useful life										3 years
Accounting Standards Update 2016-02 [Member]
Property, Plant and Equipment
Operating Lease, Right-of-Use Asset													$ 14,000
Operating Lease, Liability													$ 19,000
Five Customers [Member]
Property, Plant and Equipment
Concentration risk (percent)										28.00%	20.00%