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Description Of Business And Segment Reporting (Reconciliation To Net Income Attributable To Common Shareholders) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Segment Reporting Information [Line Items] |  |  |  |
Operating income (loss) | $ 5,817 | $ 8,614 | $ 4,515 | $ 14,306
Depreciation and amortization expense | (5,572) | (5,626) | (11,166) | (10,877)
General and administrative expense | (6,034) | (7,165) | (12,518) | (14,761)
Equity earnings of unconsolidated joint ventures | 327 | 331 | 361 | 588
Other income (expense) | 71 | (61) | 50 | (143)
Income (loss) before income taxes | 4,011 | 7,094 | 872 | 11,367
Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating income (loss) | 10,614 | 14,448 | 14,414 | 26,413
Unallocated Corporate Expense [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization expense | (127) | (104) | (188) | (221)
General and administrative expense | (4,670) | (5,730) | (9,710) | (11,886)
Interest expense, net | $ (2,204) | $ (1,790) | $ (4,055) | $ (3,384)

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