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Business Segments Business Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014
Segment Reporting Information [Line Items] |  |  |  |
Revenue | $ 363,457 | $ 330,767 | $ 949,472 | $ 847,216
Operating Income (Loss) | 30,120 | 24,830 | 75,697 | 59,478
Interest | 3,658 | 2,649 | 11,870 | 9,549
Equity in income of unconsolidated joint ventures | (36) | (22) | (248) | (62)
Income before income taxes | 26,498 | 22,203 | 64,075 | 49,991
Valuation Adjustments To Operating Communities |  |  |  | 800
Valuation Adjustments To Future Communities |  | 600 |  | 600
Midwest Homebuilding [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Homebuilding revenue | 128,121 | 118,319 | 331,479 | 283,472
Operating Income (Loss) | 13,511 | 12,802 | 33,526 | 26,771
Interest | 649 | 450 | 2,536 | 2,211
Southern Homebuilding [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Homebuilding revenue | 137,185 | 118,150 | 341,139 | 299,472
Operating Income (Loss) | 13,860 | 10,215 | 30,421 | 24,741
Interest | 1,649 | 968 | 5,185 | 3,927
Mid-Atlantic Homebuilding [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Homebuilding revenue | 88,875 | 86,718 | 250,546 | 242,357
Operating Income (Loss) | 6,350 | 6,511 | 19,376 | 18,888
Interest | 948 | 829 | 3,011 | 2,392
Financial Services [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Financial services revenue | 9,276 | 7,580 | 26,308 | 21,915
Operating Income (Loss) | 4,856 | 3,804 | 15,425 | 12,204
Interest | 412 | 402 | 1,138 | 1,019
Corporate and Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Selling, general and administrative expenses | $ (8,457) | $ (8,502) | $ (23,051) | $ (23,126)

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- Definition Valuation adjustments recorded in costs of homes sold in the period, related to future communities, in order to reduce the carrying amount to fair value. + References No definition available. + Details
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- Definition Valuation adjustments recorded in costs of homes sold in the period, related to current operating communities, in order to reduce the carrying amount to fair value. + References No definition available. + Details
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- Definition The aggregate financial services revenue and operating interest income earned during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(d)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition Revenue related to the sale of homes and home building activities including design, development, general contracting, and renovation services for residential buildings, including single-family houses, multifamily housing, townhouses, apartments, and modular housing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.12) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 7 + Details
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