Quarterly report pursuant to Section 13 or 15(d)

Our Portfolio - Additional Information (Detail)

v3.4.0.3
Our Portfolio - Additional Information (Detail) - USD ($)
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]      
Financing receivables, investments, real estate and equity method investments $ 1,365,000,000    
Deferred funding obligations 62,541,000   $ 108,499,000
Financing receivables on non accrual status 0   $ 0
Loan modifications that qualify as trouble debt restructurings 0 $ 0  
Provision for credit losses $ 0 $ 0  
Minimum [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Long-term triple net leases expiration dates range 2033    
Long-term triple net leases extended expiration dates range 2047    
Maximum [Member]      
Financing Receivable, Recorded Investment [Line Items]      
Long-term triple net leases expiration dates range 2051    
Long-term triple net leases extended expiration dates range 2080