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Note 11 - Operating and Reporting Segments (Details) - Financial Information Relating to Segment Operations (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Oct. 31, 2013
Jul. 31, 2013
Apr. 30, 2013
Jan. 31, 2013
Oct. 31, 2012
Jul. 31, 2012
Apr. 30, 2012
Jan. 31, 2012
Oct. 31, 2013
Oct. 31, 2012
Oct. 31, 2011
Revenues:                      
Revenues $ 591,687 $ 478,357 $ 422,998 $ 358,211 $ 487,045 $ 387,011 $ 341,698 $ 269,599 $ 1,851,253 $ 1,485,353 $ 1,134,907
Income (loss) before income taxes:                      
Income (loss) before income taxes 33,614 10,388 (1,265) (20,802) (84,207) (1,817) 2,338 (17,562) 21,935 (101,248) (291,588)
Homebuilding interest expense:                      
Interest expense, net                 144,073 152,986 172,195
Depreciation:                      
Depreciation and intangible amortization and impairment                 4,712 6,223 9,340
Net additions to operating properties and equipment:                      
Net additions to operating properties and equipment                 1,558 5,059 826
Equity in earnings (losses) from unconsolidated joint ventures:                      
Income (loss) from unconsolidated joint ventures 5,234 3,690 827 2,289 3,077 852 1,495 (23) 12,040 5,401 (8,958)
Homebuilding [Member] | Northeast [Member]
                      
Revenues:                      
Revenues                 282,855 233,326 201,984
Income (loss) before income taxes:                      
Income (loss) before income taxes                 1,519 (4,683) (99,276)
Homebuilding interest expense:                      
Interest expense, net                 26,163 25,507 33,833
Depreciation:                      
Depreciation and intangible amortization and impairment                 245 316 677
Net additions to operating properties and equipment:                      
Net additions to operating properties and equipment                 388 2,944 191
Equity in earnings (losses) from unconsolidated joint ventures:                      
Income (loss) from unconsolidated joint ventures                 3,738 3,202 (4,474)
Homebuilding [Member] | Mid-Atlantic [Member]
                      
Revenues:                      
Revenues                 289,303 273,080 199,716
Income (loss) before income taxes:                      
Income (loss) before income taxes                 24,388 17,262 (17,286)
Homebuilding interest expense:                      
Interest expense, net                 10,037 9,988 10,180
Depreciation:                      
Depreciation and intangible amortization and impairment                 283 370 437
Net additions to operating properties and equipment:                      
Net additions to operating properties and equipment                 35 55 19
Equity in earnings (losses) from unconsolidated joint ventures:                      
Income (loss) from unconsolidated joint ventures                 5,631 155 (4,340)
Homebuilding [Member] | Midwest [Member]
                      
Revenues:                      
Revenues                 163,485 106,719 70,567
Income (loss) before income taxes:                      
Income (loss) before income taxes                 12,270 253 (8,977)
Homebuilding interest expense:                      
Interest expense, net                 3,737 2,994 2,441
Depreciation:                      
Depreciation and intangible amortization and impairment                 528 517 1,825
Net additions to operating properties and equipment:                      
Net additions to operating properties and equipment                 279 218 66
Equity in earnings (losses) from unconsolidated joint ventures:                      
Income (loss) from unconsolidated joint ventures                 1,045 598 672
Homebuilding [Member] | Southeast [Member]
                      
Revenues:                      
Revenues                 147,570 128,684 79,453
Income (loss) before income taxes:                      
Income (loss) before income taxes                 6,455 (4,828) (11,874)
Homebuilding interest expense:                      
Interest expense, net                 5,861 5,310 4,036
Depreciation:                      
Depreciation and intangible amortization and impairment                 31 47 132
Net additions to operating properties and equipment:                      
Net additions to operating properties and equipment                 7 30 34
Equity in earnings (losses) from unconsolidated joint ventures:                      
Income (loss) from unconsolidated joint ventures                 1,287 1,503 676
Homebuilding [Member] | Southwest [Member]
                      
Revenues:                      
Revenues                 697,358 518,931 425,152
Income (loss) before income taxes:                      
Income (loss) before income taxes                 76,459 42,178 29,316
Homebuilding interest expense:                      
Interest expense, net                 16,071 15,880 14,552
Depreciation:                      
Depreciation and intangible amortization and impairment                 163 217 292
Net additions to operating properties and equipment:                      
Net additions to operating properties and equipment                 44   28
Equity in earnings (losses) from unconsolidated joint ventures:                      
Income (loss) from unconsolidated joint ventures                     83
Homebuilding [Member] | West [Member]
                      
Revenues:                      
Revenues                 223,086 185,851 128,658
Income (loss) before income taxes:                      
Income (loss) before income taxes                 14,398 (3,177) (40,599)
Homebuilding interest expense:                      
Interest expense, net                 12,960 14,416 10,264
Depreciation:                      
Depreciation and intangible amortization and impairment                 148 302 409
Net additions to operating properties and equipment:                      
Net additions to operating properties and equipment                 19   118
Equity in earnings (losses) from unconsolidated joint ventures:                      
Income (loss) from unconsolidated joint ventures                 339 (57) (1,575)
Homebuilding [Member]
                      
Revenues:                      
Revenues                 1,803,657 1,446,591 1,105,530
Income (loss) before income taxes:                      
Income (loss) before income taxes                 135,489 47,005 (148,696)
Homebuilding interest expense:                      
Interest expense, net                 74,829 74,095 75,306
Depreciation:                      
Depreciation and intangible amortization and impairment                 1,398 1,769 3,772
Net additions to operating properties and equipment:                      
Net additions to operating properties and equipment                 772 3,247 456
Financial Services [Member]
                      
Revenues:                      
Revenues                 47,727 38,735 29,481
Income (loss) before income taxes:                      
Income (loss) before income taxes                 18,668 15,087 8,109
Homebuilding interest expense:                      
Interest expense, net                 68,745 78,338 96,539
Depreciation:                      
Depreciation and intangible amortization and impairment                 285 328 391
Net additions to operating properties and equipment:                      
Net additions to operating properties and equipment                 6 21 74
Corporate and Other [Member]
                      
Revenues:                      
Revenues                 (131) 27 (104)
Income (loss) before income taxes:                      
Income (loss) before income taxes                 (132,222) (163,340) (151,001)
Homebuilding interest expense:                      
Interest expense, net                 499 [1] 553 [1] 350 [1]
Depreciation:                      
Depreciation and intangible amortization and impairment                 3,029 4,126 5,177
Net additions to operating properties and equipment:                      
Net additions to operating properties and equipment                 $ 780 $ 1,791 $ 296
[1] Financial services interest expenses are included in the Financial services lines on the Consolidated Statements of Operations in the respective revenues and expenses sections.