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Organization and Principles of Consolidation (Narrative) (Details)
Dec. 31, 2014
States
Product Information [Line Items]  
Number of operating states 17us-gaap_NumberOfStatesInWhichEntityOperates
Communication Services  
Product Information [Line Items]  
Number of access line equivalents 1,100,000frp_NumberOfAccessLineEquivalents
/ us-gaap_ProductOrServiceAxis
= frp_CommunicationServicesMember
Number of data subscribers 322,000frp_NumberOfDataSubscribers
/ us-gaap_ProductOrServiceAxis
= frp_CommunicationServicesMember
Minimum | Communication Services  
Product Information [Line Items]  
Fiber Network, Route Length 16,000frp_FiberNetworkRouteLength
/ us-gaap_ProductOrServiceAxis
= frp_CommunicationServicesMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember