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Legal Matters (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended		1 Months Ended		3 Months Ended
	Feb. 29, 2012	Feb. 29, 2012 Nevada Development Contract Litigation [Member] acre	Dec. 27, 2011 KB Home Coastal Inc. et al adv. Estancia Coastal [Member]	Feb. 29, 2012 KB Home Coastal Inc. et al adv. Estancia Coastal [Member]	Feb. 29, 2012 Maximum [Member] KB Home Coastal Inc. et al adv. Estancia Coastal [Member]	Feb. 29, 2012 Minimum [Member] Nevada Development Contract Litigation [Member]	Feb. 29, 2012 Minimum [Member] KB Home Coastal Inc. et al adv. Estancia Coastal [Member]
Legal Matters (Textual) [Abstract]
Acres of purchased land by LVDA		83
Expected compensatory damages			$ 9.8		$ 13.0	$ 0	$ 2.9
Accrual for compensatory damage				2.9
Minimum compensatory damages sought by plaintiffs	$ 55

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Acres of purchased land.

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Minimum compensatory damages sought by plaintiffs.

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The portion of the carrying amount as of the balance sheet date of the combined total of loss contingency liabilities which is expected to be resolved within one year or the normal operating cycle, if longer.

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 5

-Paragraph 9, 10, 11, 12

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The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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