Supplemental Guarantor Information (Level 4 BS) (Details 1) (USD $)	Jan. 31, 2015	Oct. 31, 2014	Jan. 31, 2014	Oct. 31, 2013
ASSETS
Cash and cash equivalents	$ 500,900,000	$ 586,315,000	$ 1,190,489,000	$ 772,972,000
Marketable securities	10,022,000	12,026,000
Restricted cash	17,462,000	18,342,000
Inventory	6,627,481,000	6,490,321,000
Property, construction and office equipment, net	142,096,000	143,010,000
Receivables, prepaid expenses and other assets	250,349,000	251,572,000
Mortgage loans held for sale	55,945,000	101,944,000
Customer deposits held in escrow	30,679,000	42,073,000
Investments in and advances to unconsolidated entities	463,578,000	447,078,000
Investments in distressed loans and foreclosed real estate	70,935,000	73,800,000
Investments in and advances to consolidated entities	0	0
Deferred tax assets, net of valuation allowances	252,172,000	250,421,000
Total assets	8,421,619,000	8,416,902,000
Liabilities:
Loans payable	665,652,000	654,261,000
Senior notes	2,655,421,000	2,655,044,000
Mortgage company loan facility	46,559,000	90,281,000
Customer deposits	226,444,000	223,799,000
Accounts payable	222,061,000	225,347,000
Accrued expenses	577,070,000	581,477,000
Advances from Affiliiate	0	0
Income taxes payable	65,768,000	125,996,000
Total liabilities	4,458,975,000	4,556,205,000
Equity:
Common stock	1,779,000	1,779,000
Additional paid-in capital	718,195,000	712,162,000
Retained earnings	3,313,360,000	3,232,035,000
Treasury stock, at cost	(74,058,000)	(88,762,000)
Accumulated other comprehensive loss	(3,021,000)	(2,838,000)	(2,124,000)	(2,387,000)
Total stockholders' equity	3,956,255,000	3,854,376,000
Noncontrolling interest	6,389,000	6,321,000
Total equity	3,962,644,000	3,860,697,000
Total liabilities and stockholders' equity	8,421,619,000	8,416,902,000
Toll Brothers Inc. [Member]
ASSETS
Cash and cash equivalents	0	0	0	0
Marketable securities
Restricted cash	15,211,000	15,211,000
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 and advances to unconsolidated entities
Investments in distressed loans and foreclosed real estate
Investments in and advances to consolidated entities	3,754,694,000	3,714,788,000
Deferred tax assets, net of valuation allowances	252,172,000	250,421,000
Total assets	4,022,077,000	3,980,420,000
Liabilities:
Loans payable
Senior notes
Mortgage company loan facility
Customer deposits
Accounts payable
Accrued expenses
Advances from Affiliiate
Income taxes payable	65,768,000	125,996,000
Total liabilities	65,768,000	125,996,000
Equity:
Common stock	1,779,000	1,779,000
Additional paid-in capital	718,195,000	712,162,000
Retained earnings	3,313,360,000	3,232,035,000
Treasury stock, at cost	(74,058,000)	(88,762,000)
Accumulated other comprehensive loss	(2,967,000)	(2,790,000)
Total stockholders' equity	3,956,309,000	3,854,424,000
Noncontrolling interest
Total equity	3,956,309,000	3,854,424,000
Total liabilities and stockholders' equity	4,022,077,000	3,980,420,000
Subsidiary Issuer [Member]
ASSETS
Cash and cash equivalents	0	0	0	0
Marketable securities
Restricted cash
Inventory
Property, construction and office equipment, net
Receivables, prepaid expenses and other assets	15,915,000	16,802,000
Mortgage loans held for sale
Customer deposits held in escrow
Investments in and advances to unconsolidated entities
Investments in distressed loans and foreclosed real estate
Investments in and advances to consolidated entities	2,684,318,000	2,677,448,000
Deferred tax assets, net of valuation allowances
Total assets	2,700,233,000	2,694,250,000
Liabilities:
Loans payable
Senior notes	2,628,457,000	2,625,712,000
Mortgage company loan facility
Customer deposits
Accounts payable
Accrued expenses	36,620,000	31,906,000
Advances from Affiliiate
Income taxes payable
Total liabilities	2,665,077,000	2,657,618,000
Equity:
Common stock
Additional paid-in capital	49,400,000	49,400,000
Retained earnings	(14,244,000)	(12,768,000)
Treasury stock, at cost
Accumulated other comprehensive loss
Total stockholders' equity	35,156,000	36,632,000
Noncontrolling interest
Total equity	35,156,000	36,632,000
Total liabilities and stockholders' equity	2,700,233,000	2,694,250,000
Guarantor Subsidiaries [Member]
ASSETS
Cash and cash equivalents	365,900,000	455,714,000	1,070,746,000	670,102,000
Marketable securities		1,997,000
Restricted cash	1,652,000	2,070,000
Inventory	6,330,188,000	6,260,303,000
Property, construction and office equipment, net	125,316,000	126,586,000
Receivables, prepaid expenses and other assets	119,138,000	114,863,000
Mortgage loans held for sale
Customer deposits held in escrow	29,424,000	39,912,000
Investments in and advances to unconsolidated entities	133,528,000	132,096,000
Investments in distressed loans and foreclosed real estate
Investments in and advances to consolidated entities	4,740,000	4,740,000
Deferred tax assets, net of valuation allowances
Total assets	7,109,886,000	7,138,281,000
Liabilities:
Loans payable	665,652,000	653,269,000
Senior notes
Mortgage company loan facility
Customer deposits	221,118,000	221,084,000
Accounts payable	221,904,000	225,106,000
Accrued expenses	362,076,000	386,223,000
Advances from Affiliiate	1,929,665,000	2,018,981,000
Income taxes payable
Total liabilities	3,400,415,000	3,504,663,000
Equity:
Common stock	48,000	48,000
Additional paid-in capital
Retained earnings	3,709,477,000	3,633,618,000
Treasury stock, at cost
Accumulated other comprehensive loss	(54,000)	(48,000)
Total stockholders' equity	3,709,471,000	3,633,618,000
Noncontrolling interest
Total equity	3,709,471,000	3,633,618,000
Total liabilities and stockholders' equity	7,109,886,000	7,138,281,000
Non-Guarantor Subsidiaries [Member]
ASSETS
Cash and cash equivalents	135,000,000	130,601,000	119,743,000	102,870,000
Marketable securities	10,022,000	10,029,000
Restricted cash	599,000	1,061,000
Inventory	297,293,000	230,018,000
Property, construction and office equipment, net	16,780,000	16,424,000
Receivables, prepaid expenses and other assets	133,764,000	137,496,000
Mortgage loans held for sale	55,945,000	101,944,000
Customer deposits held in escrow	1,255,000	2,161,000
Investments in and advances to unconsolidated entities	330,050,000	314,982,000
Investments in distressed loans and foreclosed real estate	70,935,000	73,800,000
Investments in and advances to consolidated entities
Deferred tax assets, net of valuation allowances
Total assets	1,051,643,000	1,018,516,000
Liabilities:
Loans payable		992,000
Senior notes
Mortgage company loan facility	46,559,000	90,281,000
Customer deposits	5,326,000	2,715,000
Accounts payable	157,000	241,000
Accrued expenses	198,790,000	181,649,000
Advances from Affiliiate	759,301,000	708,167,000
Income taxes payable
Total liabilities	1,010,133,000	984,045,000
Equity:
Common stock	3,006,000	3,006,000
Additional paid-in capital	1,734,000	1,734,000
Retained earnings	30,381,000	23,410,000
Treasury stock, at cost
Accumulated other comprehensive loss
Total stockholders' equity	35,121,000	28,150,000
Noncontrolling interest	6,389,000	6,321,000
Total equity	41,510,000	34,471,000
Total liabilities and stockholders' equity	1,051,643,000	1,018,516,000
Eliminations [Member]
ASSETS
Cash and cash equivalents	0	0	0	0
Marketable securities
Restricted cash
Inventory
Property, construction and office equipment, net
Receivables, prepaid expenses and other assets	(18,468,000)	(17,589,000)
Mortgage loans held for sale
Customer deposits held in escrow
Investments in and advances to unconsolidated entities
Investments in distressed loans and foreclosed real estate
Investments in and advances to consolidated entities	(6,443,752,000)	(6,396,976,000)
Deferred tax assets, net of valuation allowances
Total assets	(6,462,220,000)	(6,414,565,000)
Liabilities:
Loans payable
Senior notes	26,964,000	29,332,000
Mortgage company loan facility
Customer deposits
Accounts payable
Accrued expenses	(20,416,000)	(18,301,000)
Advances from Affiliiate	(2,688,966,000)	(2,727,148,000)
Income taxes payable
Total liabilities	(2,682,418,000)	(2,716,117,000)
Equity:
Common stock	(3,054,000)	(3,054,000)
Additional paid-in capital	(51,134,000)	(51,134,000)
Retained earnings	(3,725,614,000)	(3,644,260,000)
Treasury stock, at cost
Accumulated other comprehensive loss
Total stockholders' equity	(3,779,802,000)	(3,698,448,000)
Noncontrolling interest
Total equity	(3,779,802,000)	(3,698,448,000)
Total liabilities and stockholders' equity	$ (6,462,220,000)	$ (6,414,565,000)