XML 42 R53.htm IDEA: XBRL DOCUMENT v2.4.1.9
Impairments (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
item
Impairments    
Provisions for impairment $ 2.1us-gaap_AssetImpairmentCharges $ 1.7us-gaap_AssetImpairmentCharges
Number of impaired properties sold   4o_ImpairedPropertiesSoldNumber
Restaurants - casual dining industry    
Impairments    
Number of impaired properties sold 1o_ImpairedPropertiesSoldNumber
/ us-gaap_StatementBusinessSegmentsAxis
= o_RestaurantsCasualDiningIndustryMember		 2o_ImpairedPropertiesSoldNumber
/ us-gaap_StatementBusinessSegmentsAxis
= o_RestaurantsCasualDiningIndustryMember
Number of impaired properties held-for-sale 1o_ImpairedPropertiesHeldForSellNumber
/ us-gaap_StatementBusinessSegmentsAxis
= o_RestaurantsCasualDiningIndustryMember		  
Number of impaired properties from disposal of building 1o_PropertiesImpaired
/ us-gaap_StatementBusinessSegmentsAxis
= o_RestaurantsCasualDiningIndustryMember		  
Consumer electronics    
Impairments    
Number of impaired properties sold   1o_ImpairedPropertiesSoldNumber
/ us-gaap_StatementBusinessSegmentsAxis
= o_ConsumerElectronicsMember
Home furnishings    
Impairments    
Number of impaired properties sold   1o_ImpairedPropertiesSoldNumber
/ us-gaap_StatementBusinessSegmentsAxis
= o_HomeFurnishingsMember