Business Combinations (Schedule Of Total Consideration Transferred) (Details) - Wade Jurney Homes [Member] - USD ($) $ in Thousands		12 Months Ended
Jun. 14, 2018	Dec. 31, 2018
Business Acquisition [Line Items]
Cash consideration transferred for 50% ownership interest	$ 37,500
Previously held equity interest acquisition date fair value	35,625	$ 35,600
Net assets acquired	$ 73,125

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Fair value at acquisition-date of the assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interests issued by the acquirer, including but not limited to, instruments or interests issued or issuable in consideration for the business combination.

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Fair value at acquisition-date of the equity interest in the acquiree held by the acquirer, immediately before the acquisition date for businesses combined in stages.

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