Supplemental Guarantor Information (Level 4 BS) (Details 1) (USD $)	Apr. 30, 2015	Jan. 31, 2015	Oct. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2013
ASSETS
Cash and cash equivalents	$ 532,157,000		$ 586,315,000	$ 351,821,000		$ 772,972,000
Marketable securities	10,015,000		12,026,000
Restricted cash	17,962,000		18,342,000
Inventory	6,724,343,000		6,490,321,000
Property, construction and office equipment, net	141,143,000		143,010,000
Receivables, prepaid expenses and other assets	258,958,000		251,572,000
Mortgage loans held for sale	80,864,000		101,944,000
Customer deposits held in escrow	44,399,000		42,073,000
Investments in and advances to unconsolidated entities	467,259,000		447,078,000
Investments in distressed loans and foreclosed real estate	65,938,000		73,800,000
Investments in and advances to consolidated entities	0		0
Deferred tax assets, net of valuation allowances	244,643,000		250,421,000
Total assets	8,587,681,000		8,416,902,000
Liabilities:
Loans payable	674,817,000		654,261,000
Senior notes	2,655,798,000		2,655,044,000
Mortgage company loan facility	70,052,000		90,281,000
Customer deposits	275,347,000		223,799,000
Accounts payable	233,675,000		225,347,000
Accrued expenses	586,411,000		581,477,000
Advances from Affiliiate	0		0
Income taxes payable	37,641,000		125,996,000
Total liabilities	4,533,741,000		4,556,205,000
Equity:
Common stock	1,779,000		1,779,000
Additional paid-in capital	722,303,000		712,162,000
Retained earnings	3,381,290,000		3,232,035,000
Treasury stock, at cost	(55,980,000)		(88,762,000)
Accumulated other comprehensive loss	(3,051,000)	(3,021,000)	(2,838,000)	(2,030,000)	(2,124,000)	(2,387,000)
Total stockholders' equity	4,046,341,000		3,854,376,000
Noncontrolling interest	7,599,000		6,321,000
Total equity	4,053,940,000		3,860,697,000
Total liabilities and stockholders' equity	8,587,681,000		8,416,902,000
Toll Brothers Inc. [Member]
ASSETS
Cash and cash equivalents	0		0	0		0
Marketable securities
Restricted cash	15,206,000		15,211,000
Inventory
Property, construction and office equipment, net
Receivables, prepaid expenses and other assets	56,000
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	3,824,138,000		3,714,788,000
Deferred tax assets, net of valuation allowances	244,643,000		250,421,000
Total assets	4,084,043,000		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	37,641,000		125,996,000
Total liabilities	37,641,000		125,996,000
Equity:
Common stock	1,779,000		1,779,000
Additional paid-in capital	722,303,000		712,162,000
Retained earnings	3,381,290,000		3,232,035,000
Treasury stock, at cost	(55,980,000)		(88,762,000)
Accumulated other comprehensive loss	(2,990,000)		(2,790,000)
Total stockholders' equity	4,046,402,000		3,854,424,000
Noncontrolling interest
Total equity	4,046,402,000		3,854,424,000
Total liabilities and stockholders' equity	4,084,043,000		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	15,029,000		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	2,681,738,000		2,677,448,000
Deferred tax assets, net of valuation allowances
Total assets	2,696,767,000		2,694,250,000
Liabilities:
Loans payable
Senior notes	2,631,124,000		2,625,712,000
Mortgage company loan facility
Customer deposits
Accounts payable
Accrued expenses	31,906,000		31,906,000
Advances from Affiliiate
Income taxes payable
Total liabilities	2,663,030,000		2,657,618,000
Equity:
Common stock
Additional paid-in capital	49,400,000		49,400,000
Retained earnings	(15,663,000)		(12,768,000)
Treasury stock, at cost
Accumulated other comprehensive loss
Total stockholders' equity	33,737,000		36,632,000
Noncontrolling interest
Total equity	33,737,000		36,632,000
Total liabilities and stockholders' equity	2,696,767,000		2,694,250,000
Guarantor Subsidiaries [Member]
ASSETS
Cash and cash equivalents	389,236,000		455,714,000	235,689,000		670,102,000
Marketable securities			1,997,000
Restricted cash	1,297,000		2,070,000
Inventory	6,417,066,000		6,260,303,000
Property, construction and office equipment, net	123,887,000		126,586,000
Receivables, prepaid expenses and other assets	156,260,000		114,863,000
Mortgage loans held for sale
Customer deposits held in escrow	42,241,000		39,912,000
Investments in and advances to unconsolidated entities	125,691,000		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	7,260,418,000		7,138,281,000
Liabilities:
Loans payable	674,817,000		653,269,000
Senior notes
Mortgage company loan facility
Customer deposits	266,530,000		221,084,000
Accounts payable	233,509,000		225,106,000
Accrued expenses	377,933,000		386,223,000
Advances from Affiliiate	1,946,002,000		2,018,981,000
Income taxes payable
Total liabilities	3,498,791,000		3,504,663,000
Equity:
Common stock	48,000		48,000
Additional paid-in capital
Retained earnings	3,761,640,000		3,633,618,000
Treasury stock, at cost
Accumulated other comprehensive loss	(61,000)		(48,000)
Total stockholders' equity	3,761,627,000		3,633,618,000
Noncontrolling interest
Total equity	3,761,627,000		3,633,618,000
Total liabilities and stockholders' equity	7,260,418,000		7,138,281,000
Nonguarantor Subsidiaries [Member]
ASSETS
Cash and cash equivalents	142,921,000		130,601,000	116,132,000		102,870,000
Marketable securities	10,015,000		10,029,000
Restricted cash	1,459,000		1,061,000
Inventory	307,277,000		230,018,000
Property, construction and office equipment, net	17,256,000		16,424,000
Receivables, prepaid expenses and other assets	118,588,000		137,496,000
Mortgage loans held for sale	80,864,000		101,944,000
Customer deposits held in escrow	2,158,000		2,161,000
Investments in and advances to unconsolidated entities	341,568,000		314,982,000
Investments in distressed loans and foreclosed real estate	65,938,000		73,800,000
Investments in and advances to consolidated entities
Deferred tax assets, net of valuation allowances
Total assets	1,088,044,000		1,018,516,000
Liabilities:
Loans payable			992,000
Senior notes
Mortgage company loan facility	70,052,000		90,281,000
Customer deposits	8,817,000		2,715,000
Accounts payable	166,000		241,000
Accrued expenses	209,217,000		181,649,000
Advances from Affiliiate	751,619,000		708,167,000
Income taxes payable
Total liabilities	1,039,871,000		984,045,000
Equity:
Common stock	3,006,000		3,006,000
Additional paid-in capital	1,734,000		1,734,000
Retained earnings	35,834,000		23,410,000
Treasury stock, at cost
Accumulated other comprehensive loss
Total stockholders' equity	40,574,000		28,150,000
Noncontrolling interest	7,599,000		6,321,000
Total equity	48,173,000		34,471,000
Total liabilities and stockholders' equity	1,088,044,000		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	(30,975,000)		(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	(6,510,616,000)		(6,396,976,000)
Deferred tax assets, net of valuation allowances
Total assets	(6,541,591,000)		(6,414,565,000)
Liabilities:
Loans payable
Senior notes	24,674,000		29,332,000
Mortgage company loan facility
Customer deposits
Accounts payable
Accrued expenses	(32,645,000)		(18,301,000)
Advances from Affiliiate	(2,697,621,000)		(2,727,148,000)
Income taxes payable
Total liabilities	(2,705,592,000)		(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	(3,781,811,000)		(3,644,260,000)
Treasury stock, at cost
Accumulated other comprehensive loss
Total stockholders' equity	(3,835,999,000)		(3,698,448,000)
Noncontrolling interest
Total equity	(3,835,999,000)		(3,698,448,000)
Total liabilities and stockholders' equity	$ (6,541,591,000)		$ (6,414,565,000)