Segment Reporting (Selected Results Of Operations And Asset Information) (Details) - USD ($) $ in Thousands |
3 Months Ended | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 31, 2016 |
Mar. 31, 2015 |
Dec. 31, 2015 |
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| Segment Reporting Information [Line Items] | ||||||||||||||||||||||
| Total revenues | $ 152,923 | $ 153,715 | ||||||||||||||||||||
| Total operating and interest expenses | [1] | 108,293 | 112,853 | |||||||||||||||||||
| Equity in earnings (loss) of unconsolidated joint ventures | (1,554) | (3,529) | ||||||||||||||||||||
| Net operating income (loss) | [2] | 43,076 | 37,333 | |||||||||||||||||||
| Total assets | 4,228,450 | $ 4,053,963 | ||||||||||||||||||||
| Total long-lived assets | [3] | 3,553,253 | 3,466,427 | |||||||||||||||||||
| Total investments in unconsolidated joint ventures | 303,647 | 303,457 | ||||||||||||||||||||
| Corporate & Other, Including Eliminations [Member] | ||||||||||||||||||||||
| Segment Reporting Information [Line Items] | ||||||||||||||||||||||
| Total revenues | [4] | (1,742) | (860) | |||||||||||||||||||
| Total operating and interest expenses | [1],[4] | 26,103 | 27,679 | |||||||||||||||||||
| Net operating income (loss) | [2],[4] | (27,845) | (28,539) | |||||||||||||||||||
| Total assets | [4] | 125,120 | 41,535 | |||||||||||||||||||
| Total long-lived assets | [3],[4] | (2,649) | (1,531) | |||||||||||||||||||
| Real Estate - Commercial And Other [Member] | ||||||||||||||||||||||
| Segment Reporting Information [Line Items] | ||||||||||||||||||||||
| Total revenues | 136,952 | 139,759 | ||||||||||||||||||||
| Total operating and interest expenses | [1] | 65,955 | 72,198 | |||||||||||||||||||
| Equity in earnings (loss) of unconsolidated joint ventures | (1,926) | (1,368) | ||||||||||||||||||||
| Net operating income (loss) | [2] | 69,071 | 66,193 | |||||||||||||||||||
| Total assets | 3,136,311 | 3,166,577 | ||||||||||||||||||||
| Total long-lived assets | [3] | 2,848,674 | 2,886,583 | |||||||||||||||||||
| Total investments in unconsolidated joint ventures | 78,052 | 76,140 | ||||||||||||||||||||
| Real Estate - Multi Family [Member] | ||||||||||||||||||||||
| Segment Reporting Information [Line Items] | ||||||||||||||||||||||
| Total revenues | 8,986 | 6,584 | ||||||||||||||||||||
| Total operating and interest expenses | [1] | 5,415 | 3,321 | |||||||||||||||||||
| Equity in earnings (loss) of unconsolidated joint ventures | (1,231) | (2,161) | ||||||||||||||||||||
| Net operating income (loss) | [2] | 2,340 | 1,102 | |||||||||||||||||||
| Total assets | 955,980 | 836,020 | ||||||||||||||||||||
| Total long-lived assets | [3] | 703,605 | 577,705 | |||||||||||||||||||
| Total investments in unconsolidated joint ventures | 224,631 | 225,850 | ||||||||||||||||||||
| Multi Family Services [Member] | ||||||||||||||||||||||
| Segment Reporting Information [Line Items] | ||||||||||||||||||||||
| Total revenues | 8,727 | [5] | 8,232 | [6] | ||||||||||||||||||
| Total operating and interest expenses | [1] | 10,820 | [7] | 9,655 | [8] | |||||||||||||||||
| Equity in earnings (loss) of unconsolidated joint ventures | 1,603 | |||||||||||||||||||||
| Net operating income (loss) | [2] | (490) | (1,423) | |||||||||||||||||||
| Total assets | 11,039 | 9,831 | ||||||||||||||||||||
| Total long-lived assets | [3] | 3,623 | 3,670 | |||||||||||||||||||
| Total investments in unconsolidated joint ventures | 964 | $ 1,467 | ||||||||||||||||||||
| Fee revenue | 2,700 | 1,200 | ||||||||||||||||||||
| Management fee and salary reimbursement expenses | $ 1,400 | $ 900 | ||||||||||||||||||||
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