XML 61 R51.htm IDEA: XBRL DOCUMENT v3.7.0.1
Subsequent Events - Debt Obligations (Details) - USD ($)
$ in Thousands
1 Months Ended 6 Months Ended
Jul. 31, 2017
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Debt Obligations        
Amount borrowed   $ 48,500 $ 77,500  
Payments on debt   4,167 $ 4,167  
Outstanding Balance   642,898   $ 609,391
Available for borrowing   591,667   515,400
Bank Borrowings        
Debt Obligations        
Outstanding Balance   45,000   107,100
Available for borrowing   555,000   492,900
Bank Borrowings | Subsequent Event        
Debt Obligations        
Amount borrowed $ 5,000      
Outstanding Balance 50,000      
Available for borrowing 550,000      
Senior Unsecured Notes        
Debt Obligations        
Outstanding Balance   597,898   502,291
Available for borrowing   $ 36,667   $ 22,500
Senior Unsecured Notes | Subsequent Event        
Debt Obligations        
Payments on debt 10,000      
Outstanding Balance 587,898      
Available for borrowing $ 46,667