Share-Based Compensation - Narrative (Details) (USD $)	12 Months Ended						12 Months Ended					0 Months Ended		12 Months Ended													12 Months Ended				12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2014 Restricted Stock	Jun. 30, 2013 Restricted Stock	Jun. 30, 2012 Restricted Stock	Jun. 30, 2014 Restricted Stock General and Administrative Expense	Jun. 30, 2013 Restricted Stock General and Administrative Expense	Jun. 30, 2012 Restricted Stock General and Administrative Expense	Dec. 06, 2012 Farmer Bros. Co. Amended and Restated 2007 Long-Term Incentive Plan	Dec. 05, 2012 Farmer Bros. Co. Amended and Restated 2007 Long-Term Incentive Plan	Dec. 05, 2013 2007 Amended and Restated Long-term Incentive Plan [Member]	Dec. 03, 2013 2007 Amended and Restated Long-term Incentive Plan [Member]	Jun. 30, 2014 NQOs	Jun. 30, 2013 NQOs	Jun. 30, 2012 NQOs	Jun. 30, 2014 NQOs 2007 Amended and Restated Long-term Incentive Plan [Member]	Jun. 30, 2014 Stock Options	Jun. 30, 2014 Stock Options General and Administrative Expense	Jun. 30, 2013 Stock Options General and Administrative Expense	Jun. 30, 2012 Stock Options General and Administrative Expense	Jun. 30, 2014 Restricted Stock	Jun. 30, 2014 Restricted Stock Farmer Bros. Co. Amended and Restated 2007 Long-Term Incentive Plan	Jun. 30, 2012 Restricted Stock Farmer Bros. Co. Amended and Restated 2007 Long-Term Incentive Plan	Jun. 30, 2014 PNQs 2007 Amended and Restated Long-term Incentive Plan [Member]	Jun. 30, 2013 PNQs 2007 Amended and Restated Long-term Incentive Plan [Member]	Jun. 30, 2014 Vested NQOs	Jun. 30, 2013 Vested NQOs	Jun. 30, 2012 Vested NQOs	Jun. 30, 2011 Vested NQOs	Jun. 30, 2014 Vested Restricted Stock	Jun. 30, 2013 Vested Restricted Stock	Jun. 30, 2012 Vested Restricted Stock
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Common Stock, Par or Stated Value Per Share	$ 1	$ 1										$ 1.00
Share-based Compensation Arrangement by Share-based Payment Award, Contingent Number of Additional Shares Authorized												250,000
Common Stock, Capital Shares Reserved for Future Issuance										1,125,000	1,375,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period																						3 years
Number of options granted (shares)																	1,927								112,442		1,927	192,892	356,834
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price																									$ 21.27	$ 0.00	$ 12.44	$ 12.81	$ 12.84	$ 17.19
Weighted Average Exercise Price, Granted																	$ 18.68								$ 21.27		$ 18.68	$ 12.12	$ 8.90
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Forfeiture Rate																		6.50%
Share Price														$ 21.61	$ 14.06	$ 7.96
Fair value of options vested														$ 700,000	$ 1,000,000	$ 1,200,000
Nonvested Awards, Total Compensation Cost Not yet Recognized, Stock Options	700,000	1,300,000	1,300,000																						900,000
Compensation expense recognized							500,000	600,000	600,000										600,000	900,000	1,200,000				0
Shares Awarded, Granted																							9,200	142,070							9,200	51,177	142,070
Restricted stock, Granted, Weighted Average Grant Date Fair Value																							$ 20.48	$ 7.70							$ 20.48	$ 11.67	$ 7.70
Unrecognized compensation cost related to restricted stock				600,000	1,000,000	1,300,000
Proceeds from stock option exercises	1,480,000	1,203,000	0												1,200,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized For Issuance, Per Participant, Per Year												75,000	250,000
Share-based Compensation Arrangement by Share-based Payment Award, Value of Awards Authorized for Grant, Per Participant, Per Year												$ 30,000