XML 68 R53.htm IDEA: XBRL DOCUMENT v3.5.0.2
Debt Obligations (Textual) (Details) - USD ($)
May 15, 2015
Sep. 30, 2016
Dec. 31, 2015
Unsecured Revolving Credit Facility [Member]      
Debt Instrument [Line Items]      
Debt term 4 years    
Maximum borrowing capacity $ 600,000,000    
Line of credit   $ 0  
Secured Debt [Member]      
Debt Instrument [Line Items]      
Long-term Debt, Weighted Average Interest Rate   4.03% 5.72%
Long-term Debt, Gross   $ 326,242,000 $ 562,695,000