Document and Entity Information - shares	3 Months Ended
	Sep. 30, 2016	Nov. 08, 2016
Document Documentand Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2016
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2017
Trading Symbol	FARM
Entity Registrant Name	FARMER BROTHERS CO
Entity Central Index Key	0000034563
Current Fiscal Year End Date	--06-30
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		16,793,561
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes