XML 54 R43.htm IDEA: XBRL DOCUMENT v3.5.0.2
Credit Facility (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2016
USD ($)
item
Jun. 30, 2015
USD ($)
Dec. 31, 2015
USD ($)
Mar. 31, 2015
USD ($)
Credit facility        
Outstanding balance $ 512,000   $ 238,000  
Credit Facility        
Credit facility        
Maximum borrowing capacity       $ 1,500,000
Credit Facility | Unsecured debt        
Credit facility        
Maximum borrowing capacity   $ 2,000,000    
Number of extensions available | item 2      
Term of extension option 6 months      
Increase in the maximum borrowing capacity after amendment $ 1,000,000      
Variable reference rate LIBOR      
Variable interest rate, basis points spread over variable reference rate (as a percent) 0.90%      
Line of credit facility, commitment fee basis points (as a percent) 0.15%      
Line of credit facility, all-in drawn variable interest rate (as a percent) 1.05%      
Unamortized debt issuance costs $ 8,700      
Credit facility origination costs incurred 9,100      
Current borrowing capacity available 1,490,000      
Outstanding balance $ 512,000   $ 238,000  
Average borrowing rate during the period (as a percent) 1.40% 1.30%    
Weighted average interest rate at the end of the period (as a percent) 1.50%