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Notes Payable (Narratives) (Details) |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Jan. 13, 2017 USD ($) | May 31, 2017 USD ($) $ / shares shares | May 31, 2016 shares | May 31, 2017 USD ($) $ / shares shares | May 31, 2016 USD ($) shares | Nov. 30, 2016 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Issuance Costs, Net |  | $ 18,300,000 |  | $ 18,300,000 |  | $ 21,800,000
Line of Credit Facility, Current Borrowing Capacity |  | 275,000,000 |  | 275,000,000 |  |
Letters of credit outstanding |  | $ 32,400,000 |  | $ 32,400,000 |  | 31,000,000
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities (in shares) | shares |  | 8,402,000 | 8,402,000 | 8,402,000 | 8,402,000 |
Gain (Loss) on Extinguishment of Debt |  |  |  | $ (5,685,000) | $ 0 |
Notes and Loans Payable |  | $ 2,510,121,000 |  | 2,510,121,000 |  | 2,640,149,000
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months |  | 195,800,000 |  | 195,800,000 |  |
Long-term Debt, Maturities, Repayments of Principal in Year Two |  | 302,600,000 |  | 302,600,000 |  |
Long-term Debt, Maturities, Repayments of Principal in Year Three |  | 630,000,000 |  | 630,000,000 |  |
Long-term Debt, Maturities, Repayments of Principal in Year Four |  | 350,000,000 |  | 350,000,000 |  |
Long-term Debt, Maturities, Repayments of Principal in Year Five |  | 0 |  | 0 |  |
Long-term Debt, Maturities, Repayments of Principal after Year Five |  | 1,050,000,000 |  | 1,050,000,000 |  |
Inventories pledged to collateralize mortgages and land contracts, carrying value |  | $ 61,600,000 |  | 61,600,000 |  |
Revolving Credit Facility [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Unsecured revolving credit facility, expiration date |  | Aug. 07, 2019 |  |  |  |
Unsecured revolving credit facility, maximum borrowing capacity |  | $ 450,000,000 |  | 450,000,000 |  |
Line of Credit Facility, Amount Outstanding |  | 0 |  | 0 |  |
Unsecured revolving credit facility, remaining borrowing capacity |  | $ 242,600,000 |  | 242,600,000 |  |
Revolving Credit Facility [Member] | Minimum [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit facility, unused capacity, commitment fee percentage |  | 0.30% |  |  |  |
Revolving Credit Facility [Member] | Maximum [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit facility, unused capacity, commitment fee percentage |  | 0.50% |  |  |  |
Letter of Credit [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Unsecured revolving credit facility, maximum borrowing capacity |  | $ 137,500,000 |  | 137,500,000 |  |
Line of Credit Facility, Amount Outstanding |  | 32,400,000 |  | 32,400,000 |  |
Unsecured revolving credit facility, remaining borrowing capacity |  | 105,100,000 |  | 105,100,000 |  |
LOC Facilities [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Letters of credit outstanding |  | 0 |  | 0 |  | 0
Mortgages and Land Contracts Due to Land Sellers and Other Loans [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes and Loans Payable |  | $ 33,447,000 |  | $ 33,447,000 |  | $ 66,927,000
Convertible Notes Payable [Member] | Convertible Senior Notes Due Two Thousand Nineteen At One Point Three Seven Five Percent [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, rate |  | 1.375% |  | 1.375% |  | 1.375%
Debt instrument, conversion ratio |  | 0.0365297 |  |  |  |
Debt instrument, convertible, conversion price (in dollars per share) | $ / shares |  | $ 27.37 |  | $ 27.37 |  |
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities (in shares) | shares |  | 8,401,831 |  |  |  |
Notes and Loans Payable |  | $ 227,973,000 |  | $ 227,973,000 |  | $ 227,379,000
Senior Notes [Member] | Senior notes due June 15, 2018 at 7 1/4% |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, rate |  | 7.25% |  | 7.25% |  | 7.25%
Notes and Loans Payable |  | $ 299,755,000 |  | $ 299,755,000 |  | $ 299,647,000
Senior Notes [Member] | Senior notes due September 15, 2017 at 9.10% |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, rate |  | 9.10% |  | 9.10% |  | 9.10%
Notes and Loans Payable |  | $ 164,748,000 |  | $ 164,748,000 |  | $ 263,932,000
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% |  | 4.75%
Notes and Loans Payable |  | $ 397,874,000 |  | $ 397,874,000 |  | $ 397,364,000
Senior Notes [Member] | Senior notes due March 15, 2020 at 8.00% |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, rate |  | 8.00% |  | 8.00% |  | 8.00%
Notes and Loans Payable |  | $ 345,510,000 |  | $ 345,510,000 |  | $ 344,811,000
Senior Notes [Member] | Senior notes due September 15, 2022 at 7.50% |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, rate |  | 7.50% |  | 7.50% |  | 7.50%
Notes and Loans Payable |  | $ 346,999,000 |  | $ 346,999,000 |  | $ 346,774,000
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% |  | 7.625% |  | 7.625%
Notes and Loans Payable |  | $ 247,562,000 |  | $ 247,562,000 |  | $ 247,404,000
Senior Notes [Member] | Senior Notes Due Two Thousand Seventeen at Nine Point One Percent [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Senior notes, rate |  | 9.10% |  | 9.10% |  |
Extinguishment of Debt, Amount | $ 100,000,000 |  |  |  |  |
Debt Instrument Redemption Aggregate Price |  |  |  | $ 105,300,000 |  |
Notes and Loans Payable |  | $ 165,000,000 |  | $ 165,000,000 |  |

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- Definition The carrying amount, as of the date of the latest financial statement presented, of real estate owned but transferred to serve as collateral for the payment of the related debt obligation, primarily a secured borrowing or repurchase agreement, and for which the transferee is not permitted to sell or re-pledge them to an unrelated party. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -Subparagraph (b)(1)(i) -URI http://asc.fasb.org/extlink&oid=64858031&loc=SL6224234-111729 + Details
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