Employee Benefit Plans (Details)	12 Months Ended
	Jun. 30, 2017 USD ($) plan hour		Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jan. 05, 2015 USD ($)	Nov. 18, 2014 USD ($)	Jun. 30, 2012 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined contribution plan, hours threshold for eligibility | hour	1,000
Defined contribution plan, employer matching contribution percent	50.00%
Defined contribution plan, employer matching contribution, percent of eligible income	6.00%
Defined contribution plan, employer matching contribution, annual vesting percent	20.00%
Defined contribution plan, vesting period	5 years
Defined contribution plan, automatic vesting age	65 years
Defined contribution plan, employee vesting percent	100.00%
Defined contribution plan, employer matching contribution	$ 1,600,000		$ 1,600,000	$ 1,400,000
Defined benefit plan, discount rate	4.10%
Defined benefit plan, ultimate health care cost trend rate	8.60%
Defined benefit plan, health care cost rate trend rate	4.50%
Amortization of net gain (loss)	$ (800,000)
Amortization of prior service cost (credit)	$ (1,800,000)
Multiemployer Plans, Defined Benefit Pension Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Multiemployer plans, number of plans | plan	2
Multiemployer Plans, Defined Contribution Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Multiemployer plans, number of plans | plan	1
Other Postretirement Benefits Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Multiemployer plans, number of plans | plan	10
Expected employer contributions in the next fiscal year	$ 911,000
Labor Management Pension Fund
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Withdrawal obligation	4,000,000	[1]	$ 3,800,000		$ 4,900,000	$ 4,400,000	$ 4,300,000
Farmer Brothers Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Amount expected to be recognized as a component of net periodic benefit cost in the next fiscal year	$ 1,500,000
Plan assets by category	0.00%		0.00%
Expected employer contributions in the next fiscal year	$ 2,600,000
Defined benefit plan, discount rate	3.80%		3.55%
Farmer Brothers Plan | Real estate
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Plan assets by category	6.00%		6.00%
Brewmatic Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Amount expected to be recognized as a component of net periodic benefit cost in the next fiscal year	$ 68,000
Plan assets by category	100.00%		100.00%
Expected employer contributions in the next fiscal year	$ 100,000
Defined benefit plan, discount rate	3.80%		3.55%
Brewmatic Plan | Real estate
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Plan assets by category	6.00%		6.00%
Hourly Employees’ Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Amount expected to be recognized as a component of net periodic benefit cost in the next fiscal year	$ 0
Plan assets by category	100.00%		100.00%
Expected employer contributions in the next fiscal year	$ 400,000
Defined benefit plan, discount rate	3.80%		3.55%
Hourly Employees’ Plan | Real estate
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Plan assets by category	6.00%		6.00%

[1] Includes $86.5 million in estimated future benefit payments on single employer pension plan obligations, $4.0 million in estimated payments in fiscal 2018 towards settlement of withdrawal liability associated with the Company’s withdrawal from the Local 807 Labor Management Pension Plan and $2.2 million in estimated fiscal 2018 contributions to the multiemployer pension plans. See Note 15.