Quarterly report pursuant to Section 13 or 15(d)

Debt, Net (Details)

v3.19.2
Debt, Net (Details)
 3 Months Ended 6 Months Ended
Jun. 30, 2019
USD ($)
extension
Jun. 30, 2018
USD ($)
Jun. 30, 2019
USD ($)
extension
Jun. 30, 2018
USD ($)
Dec. 31, 2018
USD ($)
Debt          
Carrying Value $ 1,784,362,000   $ 1,784,362,000   $ 1,823,909,000
Interest costs capitalized 2,400,000 $ 1,400,000 4,400,000 $ 2,800,000  
Mortgage and other secured debt          
Debt          
Carrying Value $ 179,799,000   $ 179,799,000   170,423,000
Line of Credit | Revolving Credit Facility          
Debt          
Number of extensions | extension 2   2    
Extension option period (in years)     6 months    
Line of credit facility, extension fee percentage     0.075%    
Loans payable          
Debt          
Deferred financing costs, net $ 6,300,000   $ 6,300,000   7,200,000
Fixed rate mortgage debt | Mortgage and other secured debt          
Debt          
Carrying Value 145,285,000   145,285,000   147,141,000
Unamortized premium included in carrying value $ 248,000   $ 248,000   281,000
Weighted average interest rate (as a percent) 4.17%   4.17%    
Fixed rate mortgage debt | Mortgage and other secured debt | Minimum          
Debt          
Interest rate (as a percent) 3.82%   3.82%    
Fixed rate mortgage debt | Mortgage and other secured debt | Maximum          
Debt          
Interest rate (as a percent) 7.87%   7.87%    
Variable-rate debt | Mortgage and other secured debt          
Debt          
Carrying Value $ 34,514,000   $ 34,514,000   23,282,000
Weighted average interest rate (as a percent) 4.66%   4.66%    
Variable-rate debt | Mortgage and other secured debt | Minimum | London Interbank Offered Rate (LIBOR)          
Debt          
Variable rate, spread (as a percent)     1.85%    
Variable-rate debt | Mortgage and other secured debt | Maximum | London Interbank Offered Rate (LIBOR)          
Debt          
Variable rate, spread (as a percent)     2.35%    
Construction Loan | Mortgage and other secured debt | London Interbank Offered Rate (LIBOR)          
Debt          
Remaining borrowing capacity $ 87,400,000   $ 87,400,000    
Revolving Credit Facility          
Debt          
Carrying Value $ 163,000,000   $ 163,000,000   213,000,000
Weighted average interest rate (as a percent) 3.52%   3.52%    
Revolving Credit Facility | Minimum | London Interbank Offered Rate (LIBOR)          
Debt          
Variable rate, spread (as a percent)     0.775%    
Revolving Credit Facility | Maximum | London Interbank Offered Rate (LIBOR)          
Debt          
Variable rate, spread (as a percent)     1.45%    
Term Loan Facility          
Debt          
Carrying Value $ 248,490,000   $ 248,490,000   248,273,000
Interest rate (as a percent) 3.69%   3.69%    
Aggregate additional borrowing capacity available $ 150,000,000.0   $ 150,000,000.0    
Maximum availability 500,000,000.0   $ 500,000,000.0    
Term Loan Facility | Minimum | London Interbank Offered Rate (LIBOR)          
Debt          
Variable rate, spread (as a percent)     0.85%    
Term Loan Facility | Maximum | London Interbank Offered Rate (LIBOR)          
Debt          
Variable rate, spread (as a percent)     1.65%    
3.600% Senior Notes | Unsecured senior notes          
Debt          
Carrying Value 348,207,000   $ 348,207,000   347,986,000
Debt instrument, face amount $ 350,000,000   $ 350,000,000    
Interest rate (as a percent) 3.60%   3.60%    
Unamortized discount included in carrying value $ 1,200,000   $ 1,200,000   1,400,000
Effective interest rate on debt (as a percent) 3.70%   3.70%    
5.250% Senior Notes | Unsecured senior notes          
Debt          
Carrying Value $ 247,391,000   $ 247,391,000   247,136,000
Debt instrument, face amount $ 250,000,000   $ 250,000,000    
Interest rate (as a percent) 5.25%   5.25%    
Unamortized discount included in carrying value $ 2,400,000   $ 2,400,000   2,600,000
Effective interest rate on debt (as a percent) 5.49%   5.49%    
3.700% Senior Notes | Unsecured senior notes          
Debt          
Carrying Value $ 299,068,000   $ 299,068,000   298,815,000
Debt instrument, face amount $ 300,000,000   $ 300,000,000    
Interest rate (as a percent) 3.70%   3.70%    
Unamortized discount included in carrying value $ 741,000   $ 741,000   943,000
Effective interest rate on debt (as a percent) 3.85%   3.85%    
5.000% Senior Notes | Unsecured senior notes          
Debt          
Carrying Value $ 297,304,000   $ 297,304,000   297,109,000
Debt instrument, face amount $ 300,000,000   $ 300,000,000    
Interest rate (as a percent) 5.00%   5.00%    
Unamortized discount included in carrying value $ 2,300,000   $ 2,300,000   2,400,000
Effective interest rate on debt (as a percent) 5.15%   5.15%    
Unsecured notes payable          
Debt          
Carrying Value $ 1,103,000   $ 1,103,000   1,167,000
Interest rate (as a percent) 0.00%   0.00%    
Unamortized discount included in carrying value $ 258,000   $ 258,000   $ 294,000