Mortgages, Loans Payable And Other Obligations (Narrative) (Details)
|
9 Months Ended |
|
|
Sep. 30, 2018
USD ($)
property
|
Sep. 30, 2017
USD ($)
|
Dec. 31, 2017
USD ($)
|
| Debt Instrument [Line Items] |
|
|
|
| Number of properties with encumbered company mortgages | property |
16
|
|
|
| Carrying value of encumbered properties |
$ 2,000,000,000
|
|
|
| Cash paid for interest |
66,044,000
|
$ 70,114,000
|
|
| Interest capitalized |
21,274,000
|
13,955,000
|
|
| Total indebtedness |
$ 2,821,793,000
|
|
$ 2,826,110,000
|
| Total indebtedness, weighted average interest rate |
3.83%
|
|
3.93%
|
| Projects Under Development And Developable Land [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Number of properties with encumbered company mortgages | property |
1
|
|
|
| Other Property [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Carrying value of encumbered properties |
$ 135,000,000
|
|
|
| Unconsolidated Joint Venture [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Interest capitalized |
562,000
|
$ 1,009,000
|
|
| Revolving Credit Facility Borrowing And Other Variable Rate Mortgage Debt [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Total indebtedness |
$ 525,170,000
|
|
$ 382,443,000
|
| Total indebtedness, weighted average interest rate |
4.41%
|
|
3.63%
|
| Fixed Rate Debt And Other Obligations [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Total indebtedness |
$ 2,296,623,000
|
|
$ 2,443,667,000
|
| Total indebtedness, weighted average interest rate |
3.69%
|
|
3.98%
|