Employee Benefit Plans - Change in Projected Benefit Obligation, Plan Assets and Net Funded Status (Details) - USD ($)	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Change in projected benefit obligation
Benefit obligation at the beginning of the year	$ 138,412,000	$ 126,227,000
Interest cost	3,437,000	4,236,000
Actuarial (gain) loss	(1,443,000)	13,994,000
Benefits paid	(6,245,000)	(6,045,000)
Pension settlement	0	0
Projected benefit obligation at the end of the year	134,161,000	138,412,000
Change in plan assets
Fair value of plan assets at the beginning of the year	79,819,000	79,189,000
Actual return on plan assets	18,474,000	3,621,000
Employer contributions	3,063,000	3,054,000
Benefits paid	(6,245,000)	(6,045,000)
Fair value of plan assets at the end of the year	95,111,000	79,819,000
Funded status at end of year (underfunded)	(39,050,000)	(58,593,000)
Amounts recognized in consolidated balance sheets
Noncurrent liabilities	(39,050,000)	(58,593,000)
Amounts Recognized in Balance Sheet	(39,050,000)	(58,593,000)
Amounts recognized in balance sheet
Net loss	46,169,000	63,945,000
Total accumulated OCI (not adjusted for applicable tax)	46,169,000	$ 63,945,000
Weighted average assumptions used to determine benefit obligations
Discount rate		4.05%
Farmer Brothers Plan
Change in projected benefit obligation
Benefit obligation at the beginning of the year	133,326,000	$ 121,752,000
Interest cost	3,309,000	4,084,000
Actuarial (gain) loss	(1,437,000)	13,433,000
Benefits paid	(6,107,000)	(5,943,000)
Pension settlement	0	0
Projected benefit obligation at the end of the year	129,091,000	133,326,000
Change in plan assets
Fair value of plan assets at the beginning of the year	75,904,000	75,411,000
Actual return on plan assets	17,648,000	3,382,000
Employer contributions	3,063,000	3,054,000
Benefits paid	(6,107,000)	(5,943,000)
Fair value of plan assets at the end of the year	90,508,000	75,904,000
Funded status at end of year (underfunded)	(38,583,000)	(57,422,000)
Amounts recognized in consolidated balance sheets
Noncurrent liabilities	(38,583,000)	(57,422,000)
Amounts Recognized in Balance Sheet	(38,583,000)	(57,422,000)
Amounts recognized in balance sheet
Net loss	45,716,000	62,830,000
Total accumulated OCI (not adjusted for applicable tax)	$ 45,716,000	$ 62,830,000
Weighted average assumptions used to determine benefit obligations
Discount rate	2.60%	2.55%
Hourly Employees’ Plan
Change in projected benefit obligation
Benefit obligation at the beginning of the year	$ 5,086,000	$ 4,475,000
Interest cost	128,000	152,000
Actuarial (gain) loss	(6,000)	561,000
Benefits paid	(138,000)	(102,000)
Pension settlement	0	0
Projected benefit obligation at the end of the year	5,070,000	5,086,000
Change in plan assets
Fair value of plan assets at the beginning of the year	3,915,000	3,778,000
Actual return on plan assets	826,000	239,000
Employer contributions	0	0
Benefits paid	(138,000)	(102,000)
Fair value of plan assets at the end of the year	4,603,000	3,915,000
Funded status at end of year (underfunded)	(467,000)	(1,171,000)
Amounts recognized in consolidated balance sheets
Noncurrent liabilities	(467,000)	(1,171,000)
Amounts Recognized in Balance Sheet	(467,000)	(1,171,000)
Amounts recognized in balance sheet
Net loss	453,000	1,115,000
Total accumulated OCI (not adjusted for applicable tax)	$ 453,000	$ 1,115,000
Weighted average assumptions used to determine benefit obligations
Discount rate	2.60%	2.55%