Annual report pursuant to Section 13 and 15(d)

Schedule IV - Mortgage Loans on Real Estate - Reconciliation of Mortgage Loans (Detail)

v2.4.1.9
Schedule IV - Mortgage Loans on Real Estate - Reconciliation of Mortgage Loans (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Jul. 25, 2014
Mortgage Loans on Real Estate [Abstract]        
Balance at beginning of period       $ 5,600us-gaap_MortgageLoansOnRealEstate
New mortgage loans 62,231us-gaap_MortgageLoansOnRealEstateNewMortgageLoans 71,795us-gaap_MortgageLoansOnRealEstateNewMortgageLoans    
Collections of principal 0us-gaap_MortgageLoansOnRealEstateCollectionsOfPrincipal 0us-gaap_MortgageLoansOnRealEstateCollectionsOfPrincipal 0us-gaap_MortgageLoansOnRealEstateCollectionsOfPrincipal  
Balance at end of period $ 5,600us-gaap_MortgageLoansOnRealEstate     $ 5,600us-gaap_MortgageLoansOnRealEstate