Business Combinations (Schedule Of Pro Forma Information) (Details) - UCP, Sundquist Homes, And WJH [Member] $ / shares in Units, $ in Thousands	3 Months Ended
Mar. 31, 2018 USD ($) $ / shares shares
Business Acquisition [Line Items]
Total revenues	$ 474,452
Income before tax expense	23,113
Tax expense	(3,086)
Net income	20,027
Less: Undistributed earnings allocated to participating securities	(49)
Numerator for basic and diluted pro forma EPS	$ 19,978
Pro forma weighted average shares-basic \| shares	29,515,531
Pro forma weighted average shares-diluted \| shares	29,833,729
Pro forma basic EPS \| $ / shares	$ 0.68
Pro forma diluted EPS \| $ / shares	$ 0.67

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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