Employee Benefit Plans - Components of Net Periodic Benefit Cost and Amounts Recognized in Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Other changes recognized in OCI
Amortization of net gain (loss)		$ (200)
Farmer Brothers Plan
Components of net periodic benefit cost
Service cost	$ 0	0
Interest cost	5,393	5,545
Expected return on plan assets	(6,938)	(6,508)
Amortization of net loss (gain)	1,153	1,279
Net periodic benefit (credit) cost	(392)	316
Other changes recognized in OCI
Net (gain)/loss	9,803	(1,469)
Amortization of net gain (loss)	(1,153)	(1,279)
Total recognized in OCI	8,650	(2,748)
Total recognized in net periodic benefit cost and OCI	$ 8,258	$ (2,432)
Weighted average assumptions used to determine benefit obligations
Discount rate	4.15%	4.50%
Expected long-term return on plan assets	7.50%	8.00%
Brewmatic Plan
Components of net periodic benefit cost
Service cost	$ 0	$ 0
Interest cost	160	171
Expected return on plan assets	(234)	(221)
Amortization of net loss (gain)	57	65
Net periodic benefit (credit) cost	(17)	15
Other changes recognized in OCI
Net (gain)/loss	356	(147)
Amortization of net gain (loss)	(57)	(65)
Total recognized in OCI	299	(212)
Total recognized in net periodic benefit cost and OCI	$ 282	$ (197)
Weighted average assumptions used to determine benefit obligations
Discount rate	4.15%	4.50%
Expected long-term return on plan assets	7.50%	8.00%
Hourly Employees' Plan
Components of net periodic benefit cost
Service cost	$ 386	$ 401
Interest cost	108	92
Expected return on plan assets	(119)	(90)
Amortization of net loss (gain)	0	0
Net periodic benefit (credit) cost	375	403
Other changes recognized in OCI
Net (gain)/loss	165	(35)
Amortization of net gain (loss)	0	0
Total recognized in OCI	165	(35)
Total recognized in net periodic benefit cost and OCI	$ 540	$ 368
Weighted average assumptions used to determine benefit obligations
Discount rate	4.15%	4.50%
Expected long-term return on plan assets	7.50%	8.00%