Summary of Significant Accounting Policies - Narrative (Details) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended	18 Months Ended
	Sep. 15, 2016 USD ($)	Mar. 31, 2017 USD ($) warehouse shares	Mar. 31, 2016 USD ($) shares	Mar. 31, 2017 USD ($) warehouse shares	Mar. 31, 2016 USD ($) shares	Jun. 30, 2015	Dec. 31, 2016 USD ($)	Jun. 30, 2016 USD ($)
Property, Plant and Equipment
Payments to Acquire Property, Plant, and Equipment	$ 42,500			$ 35,497	$ 16,193
Number of delivery routes		646		646
(Recovery of) provision for doubtful accounts				$ (44)	432
Cost of goods sold		$ 84,367	$ 81,908	247,586	$ 254,173
Property, plant and equipment gross		$ 345,397		$ 345,397				$ 314,709
Shares issuable under stock options (in shares) | shares		116,020	107,936	120,075	127,806
Antidilutive securities excluded from computation of earnings per share (in shares) | shares		30,401	59,854	25,508	35,253
Shipping and handling costs		$ 6,000	$ 3,000	$ 17,200	$ 7,900
Coffee Brewing Equipment and Service
Property, Plant and Equipment
Cost of goods sold		$ 7,000	7,000	$ 19,900	20,400
Branch Warehouses
Property, Plant and Equipment
Number of real estate properties | warehouse		114		114
Building and Facilities
Property, Plant and Equipment
Property, plant and equipment gross		$ 54,364		$ 54,364				54,768
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
Property, Plant and Equipment
Property, plant and equipment gross		$ 177,916		177,916				177,784
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
Equipment under Capital Leases
Property, Plant and Equipment
Property, plant and equipment gross		$ 7,552		7,552				11,982
Furniture and Fixtures [Member] | Maximum
Property, Plant and Equipment
Property, plant and equipment useful life		7 years
Furniture and Fixtures [Member] | Minimum
Property, Plant and Equipment
Property, plant and equipment useful life		5 years
Office Furniture and Equipment
Property, Plant and Equipment
Property, plant and equipment gross		$ 8,220		8,220				16,077
Capitalized Software Costs
Property, Plant and Equipment
Property, plant and equipment gross		$ 21,218		21,218				21,545
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
Coffee Brewing Equipment
Property, Plant and Equipment
Depreciation		$ 2,300	$ 2,400	6,900	$ 7,500
Property, plant and equipment gross		8,300		8,300				5,700
Letter of Credit, Self-insurance, Non-California [Member]
Property, Plant and Equipment
Letters of credit outstanding		4,400		4,400				4,300
Northlake, Texas | Building and Facilities
Property, Plant and Equipment
Property, plant and equipment gross		52,491		52,491				28,110
Northlake, Texas | Machinery and Equipment
Property, Plant and Equipment
Payments to Acquire Property, Plant, and Equipment							$ 20,200
Property, plant and equipment gross		19,646		19,646				4,443
Northlake, Texas | Office Furniture and Equipment
Property, Plant and Equipment
Property, plant and equipment gross		$ 3,990		$ 3,990				$ 0