Supplemental Guarantor Information (Level 4 IS) (Details 2) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Oct. 31, 2015	Jul. 31, 2015	Apr. 30, 2015	Jan. 31, 2015	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Supplemental Condensed Consolidating Statement of Operations
Revenues	$ 1,437,202	$ 1,028,011	$ 852,583	$ 853,452	$ 1,350,690	$ 1,056,857	$ 860,374	$ 643,681	$ 4,171,248	$ 3,911,602	$ 2,674,299
Cost of revenues									3,269,270	3,081,837	2,133,300
Selling, general and administrative									455,108	432,516	339,932
Total									3,724,378	3,514,353	2,473,232
Income (loss) from operations									446,870	397,249	201,067
Other [Abstract]
Income (loss) from unconsolidated entities									21,119	41,141	14,392
Other income - net									67,573	66,192	52,238
Intercompany interest income									0	0	0
Interest Expense									0	0	0
Loss from subsidiaries									0	0	0
Income (loss) before income tax benefit	217,543	107,464	86,532	124,023	188,538	151,325	93,484	71,235	535,562	504,582	267,697
Income tax provision									172,395	164,550	97,091
Net income	$ 147,163	$ 66,749	$ 67,930	$ 81,325	$ 131,524	$ 97,707	$ 65,222	$ 45,580	363,167	340,032	170,606
Other Comprehensive Income (Loss), Net of Tax									329	(451)	2,432
Comprehensive Income (Loss), Net of Tax, Attributable to Parent									$ 363,496	$ 339,581	$ 173,038
Toll Brothers Inc. [Member]
Supplemental Condensed Consolidating Statement of Operations
Revenues
Cost of revenues
Selling, general and administrative									$ 113	$ 132	$ 188
Total									113	132	188
Income (loss) from operations									$ (113)	$ (132)	$ (188)
Other [Abstract]
Income (loss) from unconsolidated entities
Other income - net									$ 9,429	$ 9,403	$ 9,433
Intercompany interest income
Interest Expense
Loss from subsidiaries									$ 526,246	$ 495,311	$ 258,452
Income (loss) before income tax benefit									535,562	504,582	267,697
Income tax provision									172,395	164,550	97,091
Net income									363,167	340,032	170,606
Other Comprehensive Income (Loss), Net of Tax									311	(677)	2,334
Comprehensive Income (Loss), Net of Tax, Attributable to Parent									$ 363,478	$ 339,355	$ 172,940
Subsidiary Issuer [Member]
Supplemental Condensed Consolidating Statement of Operations
Revenues
Cost of revenues
Selling, general and administrative									$ 3,560	$ 3,670	$ 2,963
Total									3,560	3,670	2,963
Income (loss) from operations									$ (3,560)	$ (3,670)	$ (2,963)
Other [Abstract]
Income (loss) from unconsolidated entities
Other income - net
Intercompany interest income									$ 137,362	$ 148,177	$ 127,057
Interest Expense									$ (143,193)	$ (153,898)	$ (133,500)
Loss from subsidiaries
Income (loss) before income tax benefit									$ (9,391)	$ (9,391)	$ (9,406)
Income tax provision									(3,628)	(3,609)	(3,691)
Net income									$ (5,763)	$ (5,782)	$ (5,715)
Other Comprehensive Income (Loss), Net of Tax
Comprehensive Income (Loss), Net of Tax, Attributable to Parent									$ (5,763)	$ (5,782)	$ (5,715)
Guarantor Subsidiaries [Member]
Supplemental Condensed Consolidating Statement of Operations
Revenues									4,213,776	3,950,509	2,711,438
Cost of revenues									3,276,078	3,098,048	2,149,554
Selling, general and administrative									481,943	457,808	364,256
Total									3,758,021	3,555,856	2,513,810
Income (loss) from operations									455,755	394,653	197,628
Other [Abstract]
Income (loss) from unconsolidated entities									14,034	40,588	9,318
Other income - net									$ 34,098	$ 40,594	$ 32,217
Intercompany interest income
Interest Expense
Loss from subsidiaries									$ 22,359	$ 19,476	$ 19,289
Income (loss) before income tax benefit									526,246	495,311	258,452
Income tax provision									203,296	190,349	101,416
Net income									322,950	304,962	157,036
Other Comprehensive Income (Loss), Net of Tax									18	202	114
Comprehensive Income (Loss), Net of Tax, Attributable to Parent									322,968	305,164	157,150
Non-Guarantor Subsidiaries [Member]
Supplemental Condensed Consolidating Statement of Operations
Revenues									77,226	79,097	70,107
Cost of revenues									12,909	9,406	10,043
Selling, general and administrative									60,377	55,721	48,413
Total									73,286	65,127	58,456
Income (loss) from operations									3,940	13,970	11,651
Other [Abstract]
Income (loss) from unconsolidated entities									7,085	553	5,074
Other income - net									$ 21,724	$ 15,416	$ 12,616
Intercompany interest income
Interest Expense									$ (999)	$ (1,072)	$ (646)
Loss from subsidiaries
Income (loss) before income tax benefit									$ 31,750	$ 28,867	$ 28,695
Income tax provision									12,265	11,094	11,260
Net income									$ 19,485	17,773	17,435
Other Comprehensive Income (Loss), Net of Tax										24	(16)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent									$ 19,485	17,797	17,419
Eliminations [Member]
Supplemental Condensed Consolidating Statement of Operations
Revenues									(119,754)	(118,004)	(107,246)
Cost of revenues									(19,717)	(25,617)	(26,297)
Selling, general and administrative									(90,885)	(84,815)	(75,888)
Total									(110,602)	(110,432)	(102,185)
Income (loss) from operations									$ (9,152)	$ (7,572)	$ (5,061)
Other [Abstract]
Income (loss) from unconsolidated entities
Other income - net									$ 2,322	$ 779	$ (2,028)
Intercompany interest income									(137,362)	(148,177)	(127,057)
Interest Expense									144,192	154,970	134,146
Loss from subsidiaries									(548,605)	(514,787)	(277,741)
Income (loss) before income tax benefit									(548,605)	(514,787)	(277,741)
Income tax provision									(211,933)	(197,834)	(108,985)
Net income									$ (336,672)	$ (316,953)	$ (168,756)
Other Comprehensive Income (Loss), Net of Tax
Comprehensive Income (Loss), Net of Tax, Attributable to Parent									$ (336,672)	$ (316,953)	$ (168,756)