XML 24 R37.htm IDEA: XBRL DOCUMENT v2.4.1.9
Summary of Significant Accounting Policies - Self Insurance (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2015
Jun. 30, 2014
May 31, 2011
Accounting Policies [Abstract]      
Workers' Compensation Liability $ 10.6us-gaap_WorkersCompensationLiabilityCurrentAndNoncurrent $ 9.6us-gaap_WorkersCompensationLiabilityCurrentAndNoncurrent  
Loss Contingency, Estimated Recovery from Third Party, Amount 1.2farm_LossContingencyEstimatedRecoveryfromThirdPartyAmount 1.2farm_LossContingencyEstimatedRecoveryfromThirdPartyAmount  
Letters of credit outstanding, amount     6.5us-gaap_LettersOfCreditOutstandingAmount
Medical insurance, reserve 1.0farm_SelfInsuranceReserveMedicalInsurance 0.8farm_SelfInsuranceReserveMedicalInsurance  
Liability for Unpaid Claims and Claims Adjustment Expense, Gross $ 0.8us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense