Mortgages, Loans Payable And Other Obligations (Narrative) (Details)
|
6 Months Ended |
|
|
Jun. 30, 2018
USD ($)
property
|
Jun. 30, 2017
USD ($)
|
Dec. 31, 2017
USD ($)
|
| Debt Instrument [Line Items] |
|
|
|
| Number of properties with encumbered company mortgages | property |
14
|
|
|
| Carrying value of encumbered properties |
$ 1,700,000,000
|
|
|
| Cash paid for interest |
41,354,000
|
$ 49,652,000
|
|
| Interest capitalized |
14,296,000
|
9,173,000
|
|
| Total indebtedness |
$ 2,660,517,000
|
|
$ 2,826,110,000
|
| Total indebtedness, weighted average interest rate |
3.79%
|
|
3.93%
|
| Projects Under Development And Developable Land [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Number of properties with encumbered company mortgages | property |
2
|
|
|
| Other Property [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Carrying value of encumbered properties |
$ 249,000,000
|
|
|
| Unconsolidated Joint Venture [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Interest capitalized |
348,000
|
$ 1,009,000
|
|
| Revolving Credit Facility Borrowing And Other Variable Rate Mortgage Debt [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Total indebtedness |
$ 494,490,000
|
|
$ 382,443,000
|
| Total indebtedness, weighted average interest rate |
4.33%
|
|
3.63%
|
| Fixed Rate Debt And Other Obligations [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Total indebtedness |
$ 2,166,027,000
|
|
$ 2,443,667,000
|
| Total indebtedness, weighted average interest rate |
3.66%
|
|
3.98%
|