XML 53 R56.htm IDEA: XBRL DOCUMENT v2.4.1.9
Fair Value of Financial Instruments (Details) (Fair Value, Inputs, Level 2)
 12 Months Ended
Dec. 31, 2014
Minimum
  
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Interest rate used to estimate fair value of mortgages and notes payable (in percents) 3.62%us-gaap_FairValueAssumptionsRiskFreeInterestRate
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Maximum
  
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Interest rate used to estimate fair value of mortgages and notes payable (in percents) 5.73%us-gaap_FairValueAssumptionsRiskFreeInterestRate
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_RangeAxis
= us-gaap_MaximumMember