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Business Segments (Reconciliation Of Segment Operating Income Before Taxes) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Segment operating income | $ 6,610 | $ 3,120 | $ 17,392 | $ 18,840
Depreciation and amortization expense | (4,131) | (3,501) | (11,766) | (10,769)
General and administrative expense | (6,175) | (4,134) | (18,372) | (13,736)
Equity earnings of unconsolidated joint ventures and entities | 200 | 195 | 808 | 915
Gain on sale of assets |  |  | 393 | 11,023
Other expense | (12) | (577) | (115) | (667)
Income before income taxes | 5,245 | 844 | 13,288 | 24,041
Operating Segments [Member] |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Segment operating income | 11,481 | 6,281 | 32,380 | 29,697
Corporate, Non-segment [Member] |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Depreciation and amortization expense | (102) | (86) | (295) | (220)
General and administrative expense | (4,769) | (3,075) | (14,693) | (10,637)
Interest expense, net | $ (1,553) | $ (1,894) | $ (5,190) | $ (6,070)

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