Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v3.8.0.1
Subsequent Events (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 3 Months Ended
Apr. 19, 2018
Apr. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Subsequent Event [Member]        
Subsequent Event [Line Items]        
Number of shares repurchased   6,486,486    
Purchase price per share   $ 9.25    
Shares repurchased, value   $ 60.0    
Shares purchased in tender offer, percent of total issued and outstanding equity 6.30%      
Subsequent Event [Member] | The Eilan Hotel And Spa [Member]        
Subsequent Event [Line Items]        
Purchase consideration   34.3    
NBA Eilan Loan [Member]        
Subsequent Event [Line Items]        
Line of credit, advance period     12 months  
NBA Eilan Loan [Member] | Subsequent Event [Member]        
Subsequent Event [Line Items]        
Proceeds from Lines of Credit   24.3    
Maximum borrowing capacity   27.5    
Availability of line of credits/credit facilities   $ 3.2    
NBA Eilan Loan [Member] | Subsequent Event [Member] | Minimum [Member]        
Subsequent Event [Line Items]        
Effective rate   4.75%    
NBA Eilan Loan [Member] | Subsequent Event [Member] | LIBOR [Member]        
Subsequent Event [Line Items]        
Basis spread on rate   3.25%    
Class A Common Stock [Member]        
Subsequent Event [Line Items]        
Common stock, shares outstanding     85,709,234 85,689,163
Class A Common Stock [Member] | Subsequent Event [Member]        
Subsequent Event [Line Items]        
Shares purchased in tender offer, percent of total number of shares outstanding 7.60%      
Common stock, shares outstanding 79,200,000