Face (par) amount of debt instrument at time of issuance.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

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- 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 03

-Paragraph 16

-Article 7

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

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Notes Payable (Schedule Notes Payable) (Details) (USD $)	Feb. 28, 2015	Feb. 17, 2015	Nov. 30, 2014
Debt Instrument [Line Items]
Mortgages and notes payable	$ 2,824,170,000us-gaap_NotesAndLoansPayable		$ 2,576,525,000us-gaap_NotesAndLoansPayable
Convertible Senior Notes Due Two Thousand Nineteen At One Point Three Seven Five Percent [Member] [Member]
Debt Instrument [Line Items]
Senior notes, rate	1.375%
Mortgages and Land Contracts Due to Land Sellers and Other Loans [Member]
Debt Instrument [Line Items]
Mortgages and notes payable	35,528,000		38,250,000
Senior Notes [Member] \| Senior notes due June 15, 2015 at 6 1/4%
Debt Instrument [Line Items]
Senior notes, rate	6.25%		6.25%
Mortgages and notes payable	199,898,000		199,891,000
Senior Notes [Member] \| Senior notes due September 15, 2017 at 9.10%
Debt Instrument [Line Items]
Senior notes, rate	9.10%		9.10%
Mortgages and notes payable	262,909,000		262,729,000
Senior Notes [Member] \| Senior notes due June 15, 2018 at 7 1/4%
Debt Instrument [Line Items]
Senior notes, rate	7.25%		7.25%
Mortgages and notes payable	299,439,000		299,402,000
Senior Notes [Member] \| Senior Notes Due Two Thousand Nineteen at Four Point Seven Five Percent [Member]
Debt Instrument [Line Items]
Senior notes, rate	4.75%		4.75%
Mortgages and notes payable	400,000,000		400,000,000
Senior Notes [Member] \| Senior notes due March 15, 2020 at 8.00%
Debt Instrument [Line Items]
Senior notes, rate	8.00%		8.00%
Mortgages and notes payable	346,396,000		346,253,000
Senior Notes [Member] \| Senior Notes due December 15, 2021 at 7.00%
Debt Instrument [Line Items]
Senior notes, rate	7.00%		7.00%
Mortgages and notes payable	450,000,000		450,000,000
Senior Notes [Member] \| Senior notes due September 15, 2022 at 7.50%
Debt Instrument [Line Items]
Senior notes, rate	7.50%		7.50%
Mortgages and notes payable	350,000,000		350,000,000
Senior Notes [Member] \| Senior Notes Due Two Thousand Twenty Three At Seven Point Six Two Five Percent [Domain]
Debt Instrument [Line Items]
Senior notes, rate	7.625%
Mortgages and notes payable	250,000,000		0
Debt Instrument, Face Amount		250,000,000
Convertible Notes Payable [Member] \| Convertible Senior Notes Due Two Thousand Nineteen At One Point Three Seven Five Percent [Member] [Member]
Debt Instrument [Line Items]
Senior notes, rate	1.375%		1.375%
Mortgages and notes payable	230,000,000		230,000,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Amount Outstanding	$ 0