Employee Benefit Plans - Components of Net Periodic Benefit Cost and Amounts Recognized in Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Other changes recognized in OCI
Amortization of net gain (loss)	$ 800
Amortization of prior service (cost)/credit	(1,800)
Postretirement Benefits Other Than Pension
Components of net periodic benefit cost
Service cost	1,972	1,817	1,617
Interest cost	969	1,100	1,496
Expected return on plan assets	0	0	0
Amortization of net (gain) loss	(17)	164	712
Amortization of prior service cost (credit)	1,757	1,757	358
Net periodic benefit cost	1,201	996	2,043
Other changes recognized in OCI
Amortization of net gain (loss)	(8,520)	1,419
Amortization of transition asset/(obligation)	0	0	0
Amortization of prior service (cost)/credit	0	0
Total recognized in other comprehensive income	(6,780)	3,340
Total recognized in net periodic benefit cost and OCI	(5,579)	4,336
Farmer Brothers Plan
Components of net periodic benefit cost
Service cost	0	0
Interest cost	5,550	5,846
Expected return on plan assets	(6,355)	(6,569)
Amortization of net (gain) loss	(1,422)	(570)
Amortization of prior service cost (credit)	0	0
Amount recognized due to special event (curtailment)	0	0
Net periodic benefit cost	617	(153)
Other changes recognized in OCI
Net (gain)/loss	(2,456)	23,389
Prior service cost/(credit)	0	0
Amortization of net gain (loss)	(1,422)	(570)
Amortization of transition asset/(obligation)	0	0
Amortization of prior service (cost)/credit	0	0
Amount recognized due to special event (curtailment)	0	0
Total recognized in other comprehensive income	(3,878)	22,819
Total recognized in net periodic benefit cost and OCI	(3,261)	22,666
Weighted average assumptions used to determine benefit obligations
Discount rate	4.55%	5.60%
Expected long-term return on plan assets	8.00%	8.25%
Brewmatic Plan
Components of net periodic benefit cost
Service cost	59	39
Interest cost	176	197
Expected return on plan assets	(196)	(213)
Amortization of net (gain) loss	(126)	(87)
Amortization of prior service cost (credit)	(19)	(18)
Amount recognized due to special event (curtailment)	34	0
Net periodic benefit cost	218	128
Other changes recognized in OCI
Net (gain)/loss	(150)	654
Prior service cost/(credit)	0	0
Amortization of net gain (loss)	(126)	(87)
Amortization of transition asset/(obligation)	0	0
Amortization of prior service (cost)/credit	(19)	(18)
Amount recognized due to special event (curtailment)	(34)	0
Total recognized in other comprehensive income	(329)	549
Total recognized in net periodic benefit cost and OCI	(111)	677
Weighted average assumptions used to determine benefit obligations
Discount rate	4.55%	5.60%
Expected long-term return on plan assets	8.00%	8.25%
Hourly Employees' Plan
Components of net periodic benefit cost
Service cost	418	456
Interest cost	69	59
Expected return on plan assets	(87)	(28)
Amortization of net (gain) loss	0	0
Amortization of prior service cost (credit)	0	0
Amount recognized due to special event (curtailment)	0	0
Net periodic benefit cost	400	487
Other changes recognized in OCI
Net (gain)/loss	18	(6)
Prior service cost/(credit)	0	0
Amortization of net gain (loss)	0	0
Amortization of transition asset/(obligation)	0	0
Amortization of prior service (cost)/credit	0	0
Amount recognized due to special event (curtailment)	0	0
Total recognized in other comprehensive income	18	(6)
Total recognized in net periodic benefit cost and OCI	$ 418	$ 481
Weighted average assumptions used to determine benefit obligations
Discount rate	4.55%	5.60%
Expected long-term return on plan assets	8.00%	8.25%
Rate of compensation increase		3.00%