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Mortgages and Notes Payable (Details) (USD $) In Thousands, unless otherwise specified	Nov. 30, 2011	Nov. 30, 2010
Mortgages and Notes Payable
Mortgages and notes payable	$ 1,583,571	$ 1,775,529
Mortgages and land contracts due to land sellers and other loans (6% to 7% in 2011 and 3% to 7% in 2010) [Member]
Mortgages and Notes Payable
Mortgages and notes payable	24,984	118,057
Senior notes due 2014 at 5 3/4% [Member]
Mortgages and Notes Payable
Mortgages and notes payable	249,647	249,498
Senior notes due 2015 at 5 7/8% [Member]
Mortgages and Notes Payable
Mortgages and notes payable	299,273	299,068
Senior notes due 2015 at 6 1/4% [Member]
Mortgages and Notes Payable
Mortgages and notes payable	449,795	449,745
Senior notes due 2011 at 6 3/8% [Member]
Mortgages and Notes Payable
Mortgages and notes payable	0	99,916
Senior notes due 2017 at 9.1% [Member]
Mortgages and Notes Payable
Mortgages and notes payable	260,865	260,352
Senior notes due 2018 at 7 1/4% [Member]
Mortgages and Notes Payable
Mortgages and notes payable	$ 299,007	$ 298,893

X

- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of all notes and loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20, 22

-Article 5



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 7

-Section 03

-Paragraph 16



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

Name:	us-gaap_NotesAndLoansPayable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_NotesAndLoansPayableAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration