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Business Segments (Reconciliation Of Segment Operating Income Before Taxes) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Segment operating income | $ 6,088 | $ 10,486 | $ 10,782 | $ 15,718
Depreciation and amortization expense | (3,828) | (3,526) | (7,635) | (7,268)
General and administrative expense | (6,006) | (5,274) | (12,197) | (9,602)
Equity earnings of unconsolidated joint ventures and entities | 305 | 483 | 608 | 720
Gain on sale of assets |  | 8,201 | 393 | 11,023
Other income (expense) | (46) | 1 | (104) | (89)
Income before income taxes | 4,585 | 17,570 | 8,043 | 23,196
Operating Segments [Member] |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Segment operating income | 11,123 | 14,786 | 20,901 | 23,414
Corporate, Non-segment [Member] |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Depreciation and amortization expense | (100) | (64) | (194) | (134)
General and administrative expense | (4,935) | (4,236) | (9,925) | (7,562)
Interest expense, net | $ (1,762) | $ (1,601) | $ (3,636) | $ (4,176)

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