XML 77 R66.htm IDEA: XBRL DOCUMENT v3.7.0.1
Subsequent Events - Credit Facility (Details) - USD ($)
1 Months Ended 6 Months Ended
Jul. 31, 2017
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Subsequent Event [Line Items]        
Outstanding debt, net   $ 2,434,703,000   $ 2,922,574,000
Revolving Credit Facility        
Subsequent Event [Line Items]        
Payments on credit facility   $ 20,000,000 $ 484,000,000  
Subsequent Event | Revolving Credit Facility        
Subsequent Event [Line Items]        
Payments on credit facility $ 92,000,000      
Outstanding debt, net $ 0