Supplemental Guarantor Information (Level 4 BS) (Details 1) - USD ($) $ in Thousands	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012
ASSETS
Cash and cash equivalents	$ 633,715	$ 918,993	$ 586,315	$ 772,972	$ 772,972
Marketable securities		10,001
Restricted Cash and Investments	31,291	16,795
Inventory	7,353,967	6,997,516
Property, construction and office equipment, net	169,576	136,755
Receivables, prepaid expenses, and other assets	582,758	335,860
Mortgage loans held for sale	248,601	123,175
Customer deposits held in escrow	53,057	56,105
Investments in unconsolidated entities	496,411	412,860
Investments in and Advances to Affiliates, Amount of Equity	0	0
Deferred tax assets, net of valuation allowances	167,413	198,455
Total assets	9,736,789	9,206,515
Liabilities:
Loans payable	871,079	1,000,439
Senior notes	2,694,372	2,689,801
Mortgage company loan facility	210,000	100,000
Customer deposits	309,099	284,309
Accounts payable	281,955	236,953
Accrued expenses	1,072,300	608,066
Advances from Affiliiate	0	0
Income taxes payable	62,782	58,868
Total liabilities	5,501,587	4,978,436
Stockholders’ equity:
Common stock	1,779	1,779
Additional paid-in capital	728,464	728,125
Retained earnings	3,977,297	3,595,202
Treasury stock, at cost -- 16,154 shares and 3,084 shares at October 31, 2016 and October 31, 2015, respectively	(474,912)	(100,040)
Accumulated other comprehensive loss	(3,336)	(2,509)	(2,838)
Total stockholders' equity	4,229,292	4,222,557
Noncontrolling interest	5,910	5,522
Total equity	4,235,202	4,228,079	3,860,697	3,339,164
Total liabilities and stockholders' equity	9,736,789	9,206,515
Toll Brothers Inc. [Member]
ASSETS
Cash and cash equivalents	0	0	0	0
Marketable securities
Restricted Cash and Investments	11,708	15,227
Inventory
Property, construction and office equipment, net
Receivables, prepaid expenses, and other assets	77	52
Mortgage loans held for sale
Customer deposits held in escrow
Investments in unconsolidated entities
Investments in and Advances to Affiliates, Amount of Equity	4,112,876	4,067,722
Deferred tax assets, net of valuation allowances	167,413	198,455
Total assets	4,292,074	4,281,456
Liabilities:
Loans payable
Senior notes
Mortgage company loan facility
Customer deposits
Accounts payable
Accrued expenses
Advances from Affiliiate
Income taxes payable	62,782	58,868
Total liabilities	62,782	58,868
Stockholders’ equity:
Common stock	1,779	1,779
Additional paid-in capital	728,464	728,125
Retained earnings	3,977,297	3,595,202
Treasury stock, at cost -- 16,154 shares and 3,084 shares at October 31, 2016 and October 31, 2015, respectively	(474,912)	(100,040)
Accumulated other comprehensive loss	(3,336)	(2,478)
Total stockholders' equity	4,229,292	4,222,588
Noncontrolling interest
Total equity	4,229,292	4,222,588
Total liabilities and stockholders' equity	4,292,074	4,281,456
Subsidiary Issuer [Member]
ASSETS
Cash and cash equivalents	0	0	0	0
Marketable securities
Restricted Cash and Investments
Inventory
Property, construction and office equipment, net
Receivables, prepaid expenses, and other assets
Mortgage loans held for sale
Customer deposits held in escrow
Investments in unconsolidated entities
Investments in and Advances to Affiliates, Amount of Equity	2,741,160	2,726,428
Deferred tax assets, net of valuation allowances
Total assets	2,741,160	2,726,428
Liabilities:
Loans payable
Senior notes	2,683,823	2,669,860
Mortgage company loan facility
Customer deposits
Accounts payable
Accrued expenses	32,559	25,699
Advances from Affiliiate
Income taxes payable
Total liabilities	2,716,382	2,695,559
Stockholders’ equity:
Common stock
Additional paid-in capital	49,400	49,400
Retained earnings	(24,622)	(18,531)
Treasury stock, at cost -- 16,154 shares and 3,084 shares at October 31, 2016 and October 31, 2015, respectively
Accumulated other comprehensive loss
Total stockholders' equity	24,778	30,869
Noncontrolling interest
Total equity	24,778	30,869
Total liabilities and stockholders' equity	2,741,160	2,726,428
Guarantor Subsidiaries [Member]
ASSETS
Cash and cash equivalents	583,440	783,599	455,714	670,102
Marketable securities
Restricted Cash and Investments		499
Inventory	6,896,205	6,530,698
Property, construction and office equipment, net	153,663	121,178
Receivables, prepaid expenses, and other assets	319,319	149,268
Mortgage loans held for sale
Customer deposits held in escrow	50,079	51,767
Investments in unconsolidated entities	101,999	115,999
Investments in and Advances to Affiliates, Amount of Equity	20,519	4,740
Deferred tax assets, net of valuation allowances
Total assets	8,125,224	7,757,748
Liabilities:
Loans payable	871,079	1,000,439
Senior notes
Mortgage company loan facility
Customer deposits	292,794	271,124
Accounts payable	280,107	236,436
Accrued expenses	610,958	361,089
Advances from Affiliiate	1,737,682	1,932,075
Income taxes payable
Total liabilities	3,792,620	3,801,163
Stockholders’ equity:
Common stock	48	48
Additional paid-in capital
Retained earnings	4,332,556	3,956,568
Treasury stock, at cost -- 16,154 shares and 3,084 shares at October 31, 2016 and October 31, 2015, respectively
Accumulated other comprehensive loss		(31)
Total stockholders' equity	4,332,604	3,956,585
Noncontrolling interest
Total equity	4,332,604	3,956,585
Total liabilities and stockholders' equity	8,125,224	7,757,748
Non-Guarantor Subsidiaries [Member]
ASSETS
Cash and cash equivalents	50,275	135,394	130,601	102,870
Marketable securities		10,001
Restricted Cash and Investments	19,583	1,069
Inventory	457,806	466,818
Property, construction and office equipment, net	15,913	15,577
Receivables, prepaid expenses, and other assets	299,978	230,410
Mortgage loans held for sale	248,601	123,175
Customer deposits held in escrow	2,978	4,338
Investments in unconsolidated entities	394,412	296,861
Investments in and Advances to Affiliates, Amount of Equity	90,671
Deferred tax assets, net of valuation allowances
Total assets	1,580,217	1,283,643
Liabilities:
Loans payable
Senior notes
Mortgage company loan facility	210,000	100,000
Customer deposits	16,305	13,185
Accounts payable	1,848	517
Accrued expenses	469,527	266,411
Advances from Affiliiate	747,026	850,374
Income taxes payable
Total liabilities	1,444,706	1,230,487
Stockholders’ equity:
Common stock	3,006	3,006
Additional paid-in capital	6,734	1,734
Retained earnings	119,861	42,894
Treasury stock, at cost -- 16,154 shares and 3,084 shares at October 31, 2016 and October 31, 2015, respectively
Accumulated other comprehensive loss
Total stockholders' equity	129,601	47,634
Noncontrolling interest	5,910	5,522
Total equity	135,511	53,156
Total liabilities and stockholders' equity	1,580,217	1,283,643
Eliminations [Member]
ASSETS
Cash and cash equivalents	0	0	$ 0	$ 0
Marketable securities
Restricted Cash and Investments
Inventory	(44)
Property, construction and office equipment, net
Receivables, prepaid expenses, and other assets	(36,616)	(43,870)
Mortgage loans held for sale
Customer deposits held in escrow
Investments in unconsolidated entities
Investments in and Advances to Affiliates, Amount of Equity	(6,965,226)	(6,798,890)
Deferred tax assets, net of valuation allowances
Total assets	(7,001,886)	(6,842,760)
Liabilities:
Loans payable
Senior notes	10,549	19,941
Mortgage company loan facility
Customer deposits
Accounts payable
Accrued expenses	(40,744)	(45,133)
Advances from Affiliiate	(2,484,708)	(2,782,449)
Income taxes payable
Total liabilities	(2,514,903)	(2,807,641)
Stockholders’ equity:
Common stock	(3,054)	(3,054)
Additional paid-in capital	(56,134)	(51,134)
Retained earnings	(4,427,795)	(3,980,931)
Treasury stock, at cost -- 16,154 shares and 3,084 shares at October 31, 2016 and October 31, 2015, respectively
Accumulated other comprehensive loss
Total stockholders' equity	(4,486,983)	(4,035,119)
Noncontrolling interest
Total equity	(4,486,983)	(4,035,119)
Total liabilities and stockholders' equity	$ (7,001,886)	$ (6,842,760)