Mortgages, Loans Payable And Other Obligations (Narrative) (Details)
|
3 Months Ended |
|
|
Mar. 31, 2018
USD ($)
property
|
Mar. 31, 2017
USD ($)
|
Dec. 31, 2017
USD ($)
|
| Debt Instrument [Line Items] |
|
|
|
| Number of properties with encumbered company mortgages | property |
9
|
|
|
| Carrying value of encumbered properties |
$ 1,300,000,000
|
|
|
| Cash paid for interest |
19,103,000
|
$ 15,180,000
|
|
| Interest capitalized |
7,109,000
|
4,997,000
|
|
| Total indebtedness |
$ 2,630,614,000
|
|
$ 2,826,110,000
|
| Total indebtedness, weighted average interest rate |
3.71%
|
|
3.93%
|
| Projects Under Development And Developable Land [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Number of properties with encumbered company mortgages | property |
5
|
|
|
| Other Property [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Carrying value of encumbered properties |
$ 487,000,000
|
|
|
| Unconsolidated Joint Venture [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Interest capitalized |
166,000
|
$ 1,009,000
|
|
| Revolving Credit Facility Borrowing And Other Variable Rate Mortgage Debt [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Total indebtedness |
$ 464,183,000
|
|
$ 382,443,000
|
| Total indebtedness, weighted average interest rate |
3.94%
|
|
3.63%
|
| Fixed Rate Debt And Other Obligations [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Total indebtedness |
$ 2,166,431,000
|
|
$ 2,443,667,000
|
| Total indebtedness, weighted average interest rate |
3.66%
|
|
3.98%
|