XML 43 R32.htm IDEA: XBRL DOCUMENT v3.10.0.1
Borrowing Arrangements - Additional Information (Detail)
$ in Thousands
3 Months Ended 9 Months Ended
Mar. 31, 2018
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2018
Sep. 30, 2018
property
Sep. 30, 2018
Property
Sep. 30, 2018
loan
Dec. 31, 2017
USD ($)
Property
Debt Instrument [Line Items]              
Number of loans | loan           1  
Number of pledged properties       2 124   120
Proceeds from loans   $ 64,000          
Stated interest rate (in percentage)     4.83%        
Pledged assets, not separately reported   2,508,500         $ 2,323,100
Weighted average interest rate (percentage)     4.70%        
Mortgage notes payable, net   2,016,257         1,971,715
Unsecured line of credit   $ 80,000         $ 30,000
Secured Debt | Minimum              
Debt Instrument [Line Items]              
Stated interest rate (in percentage)     3.10%        
Secured Debt | Maximum              
Debt Instrument [Line Items]              
Stated interest rate (in percentage)     8.90%        
Serendipity              
Debt Instrument [Line Items]              
Proceeds from loans $ 8,800            
Liabilities incurred 9,200            
Pledged assets, not separately reported $ 18,000            
Weighted average interest rate (percentage) 4.75%