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Preferred Noncontrolling Interests - Additional Information (Detail) (USD $)
12 Months Ended 3 Months Ended
Dec. 31, 2013
Mar. 31, 2015
Dec. 31, 2014
Schedule Of Equity Method Investments [Line Items]      
Common stock value   1,724us-gaap_CommonStockValue $ 1,726us-gaap_CommonStockValue
Amount of unreturned capital contribution and undistributed preferred distributions   10,000fdnh_AmountOfInstallmentRepaymentPerUnit  
Conversion price per share   2.00us-gaap_DebtInstrumentConvertibleConversionPrice1  
Common Stock      
Schedule Of Equity Method Investments [Line Items]      
Total consideration 435,000us-gaap_SaleOfStockConsiderationReceivedOnTransaction
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
   
Number of shares sold 870,000us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
   
Foundation Health Enterprises LLC      
Schedule Of Equity Method Investments [Line Items]      
Offering cost 100,000us-gaap_PreferredUnitsOfferingCosts
/ dei_LegalEntityAxis
= fdnh_FoundationHealthEnterprisesLlcMember
   
Common stock issued 10,000fdnh_CommonSharesIssuedPerUnit
/ dei_LegalEntityAxis
= fdnh_FoundationHealthEnterprisesLlcMember
   
Common stock value 5,000us-gaap_CommonStockValue
/ dei_LegalEntityAxis
= fdnh_FoundationHealthEnterprisesLlcMember
   
Total consideration 8,700,000us-gaap_SaleOfStockConsiderationReceivedOnTransaction
/ dei_LegalEntityAxis
= fdnh_FoundationHealthEnterprisesLlcMember
   
Cumulative preferred annual return   9.00%fdnh_PercentageOfPreferredReturnOnCapitalContributions
/ dei_LegalEntityAxis
= fdnh_FoundationHealthEnterprisesLlcMember
 
Foundation Health Enterprises LLC | Class B member interests      
Schedule Of Equity Method Investments [Line Items]      
Offering cost 105,000us-gaap_PreferredUnitsOfferingCosts
/ dei_LegalEntityAxis
= fdnh_FoundationHealthEnterprisesLlcMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember
   
Number offering units 87us-gaap_StockOrUnitsAvailableForDistributions
/ dei_LegalEntityAxis
= fdnh_FoundationHealthEnterprisesLlcMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember
   
Foundation Health Enterprises LLC | Private placement      
Schedule Of Equity Method Investments [Line Items]      
Offering cost $ 9,135,000us-gaap_PreferredUnitsOfferingCosts
/ dei_LegalEntityAxis
= fdnh_FoundationHealthEnterprisesLlcMember
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_PrivatePlacementMember