Supplemental Guarantor Information (Level 4 BS) (Details 1) - USD ($) $ in Thousands	Jul. 31, 2016	Oct. 31, 2015	Jul. 31, 2015	Oct. 31, 2014
ASSETS
Cash and cash equivalents	$ 351,854	$ 918,993	$ 394,808	$ 586,315
Marketable securities		10,001
Restricted cash and investments	43,183	16,795
Inventory	7,670,523	6,997,516
Property, construction and office equipment, net	148,804	136,755
Receivables, prepaid expenses and other assets	280,277	284,130
Mortgage loans held for sale	170,937	123,175
Customer deposits held in escrow	66,846	56,105
Investments in and advances to unconsolidated entities	461,604	412,860
Investments in foreclosed real estate and distressed loans	13,687	51,730
Investments in and advances to consolidated entities	0	0
Deferred tax assets, net of valuation allowances	197,984	198,455
Total assets	9,405,699	9,206,515
Liabilities:
Loans payable	1,058,656	1,000,439
Senior notes	2,693,221	2,689,801
Mortgage company loan facility	125,000	100,000
Customer deposits	338,457	284,309
Accounts payable	276,213	236,953
Accrued expenses	628,684	608,066
Advances from Affiliiate	0	0
Income taxes payable	105,508	58,868
Total liabilities	5,225,739	4,978,436
Equity:
Common stock	1,779	1,779
Additional paid-in capital	724,151	728,125
Retained earnings	3,862,919	3,595,202
Treasury stock, at cost	(412,243)	(100,040)
Accumulated other comprehensive loss	(2,455)	(2,509)
Total stockholders' equity	4,174,151	4,222,557
Noncontrolling interest	5,809	5,522
Total equity	4,179,960	4,228,079
Total liabilities and stockholders' equity	9,405,699	9,206,515
Toll Brothers Inc. [Member]
ASSETS
Cash and cash equivalents	0	0	0	0
Marketable securities
Restricted cash and investments	15,253	15,227
Inventory
Property, construction and office equipment, net
Receivables, prepaid expenses and other assets	99	52
Mortgage loans held for sale
Customer deposits held in escrow
Investments in and advances to unconsolidated entities
Investments in foreclosed real estate and distressed loans
Investments in and advances to consolidated entities	4,066,323	4,067,722
Deferred tax assets, net of valuation allowances	197,984	198,455
Total assets	4,279,659	4,281,456
Liabilities:
Loans payable
Senior notes
Mortgage company loan facility
Customer deposits
Accounts payable
Accrued expenses
Advances from Affiliiate
Income taxes payable	105,508	58,868
Total liabilities	105,508	58,868
Equity:
Common stock	1,779	1,779
Additional paid-in capital	724,151	728,125
Retained earnings	3,862,919	3,595,202
Treasury stock, at cost	(412,243)	(100,040)
Accumulated other comprehensive loss	(2,455)	(2,478)
Total stockholders' equity	4,174,151	4,222,588
Noncontrolling interest
Total equity	4,174,151	4,222,588
Total liabilities and stockholders' equity	4,279,659	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 and advances to unconsolidated entities
Investments in foreclosed real estate and distressed loans
Investments in and advances to consolidated entities	2,743,725	2,726,428
Deferred tax assets, net of valuation allowances
Total assets	2,743,725	2,726,428
Liabilities:
Loans payable
Senior notes	2,680,305	2,669,860
Mortgage company loan facility
Customer deposits
Accounts payable
Accrued expenses	36,869	25,699
Advances from Affiliiate
Income taxes payable
Total liabilities	2,717,174	2,695,559
Equity:
Common stock
Additional paid-in capital	49,400	49,400
Retained earnings	(22,849)	(18,531)
Treasury stock, at cost
Accumulated other comprehensive loss
Total stockholders' equity	26,551	30,869
Noncontrolling interest
Total equity	26,551	30,869
Total liabilities and stockholders' equity	2,743,725	2,726,428
Guarantor Subsidiaries [Member]
ASSETS
Cash and cash equivalents	302,234	783,599	264,661	455,714
Marketable securities
Restricted cash and investments	14,099	499
Inventory	7,236,183	6,530,698
Property, construction and office equipment, net	132,758	121,178
Receivables, prepaid expenses and other assets	207,426	149,268
Mortgage loans held for sale
Customer deposits held in escrow	62,885	51,767
Investments in and advances to unconsolidated entities	103,683	115,999
Investments in foreclosed real estate and distressed loans
Investments in and advances to consolidated entities	29,394	4,740
Deferred tax assets, net of valuation allowances
Total assets	8,088,662	7,757,748
Liabilities:
Loans payable	1,058,656	1,000,439
Senior notes
Mortgage company loan facility
Customer deposits	325,317	271,124
Accounts payable	274,836	236,436
Accrued expenses	388,459	361,089
Advances from Affiliiate	1,830,325	1,932,075
Income taxes payable
Total liabilities	3,877,593	3,801,163
Equity:
Common stock	48	48
Additional paid-in capital
Retained earnings	4,211,021	3,956,568
Treasury stock, at cost
Accumulated other comprehensive loss		(31)
Total stockholders' equity	4,211,069	3,956,585
Noncontrolling interest
Total equity	4,211,069	3,956,585
Total liabilities and stockholders' equity	8,088,662	7,757,748
Nonguarantor Subsidiaries [Member]
ASSETS
Cash and cash equivalents	49,620	135,394	130,147	130,601
Marketable securities		10,001
Restricted cash and investments	13,831	1,069
Inventory	434,340	466,818
Property, construction and office equipment, net	16,046	15,577
Receivables, prepaid expenses and other assets	126,307	178,680
Mortgage loans held for sale	170,937	123,175
Customer deposits held in escrow	3,961	4,338
Investments in and advances to unconsolidated entities	357,921	296,861
Investments in foreclosed real estate and distressed loans	13,687	51,730
Investments in and advances to consolidated entities	90,211
Deferred tax assets, net of valuation allowances
Total assets	1,276,861	1,283,643
Liabilities:
Loans payable
Senior notes
Mortgage company loan facility	125,000	100,000
Customer deposits	13,140	13,185
Accounts payable	1,377	517
Accrued expenses	258,397	266,411
Advances from Affiliiate	755,820	850,374
Income taxes payable
Total liabilities	1,153,734	1,230,487
Equity:
Common stock	3,006	3,006
Additional paid-in capital	1,734	1,734
Retained earnings	112,578	42,894
Treasury stock, at cost
Accumulated other comprehensive loss
Total stockholders' equity	117,318	47,634
Noncontrolling interest	5,809	5,522
Total equity	123,127	53,156
Total liabilities and stockholders' equity	1,276,861	1,283,643
Eliminations [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	(53,555)	(43,870)
Mortgage loans held for sale
Customer deposits held in escrow
Investments in and advances to unconsolidated entities
Investments in foreclosed real estate and distressed loans
Investments in and advances to consolidated entities	(6,929,653)	(6,798,890)
Deferred tax assets, net of valuation allowances
Total assets	(6,983,208)	(6,842,760)
Liabilities:
Loans payable
Senior notes	12,916	19,941
Mortgage company loan facility
Customer deposits
Accounts payable
Accrued expenses	(55,041)	(45,133)
Advances from Affiliiate	(2,586,145)	(2,782,449)
Income taxes payable
Total liabilities	(2,628,270)	(2,807,641)
Equity:
Common stock	(3,054)	(3,054)
Additional paid-in capital	(51,134)	(51,134)
Retained earnings	(4,300,750)	(3,980,931)
Treasury stock, at cost
Accumulated other comprehensive loss
Total stockholders' equity	(4,354,938)	(4,035,119)
Noncontrolling interest
Total equity	(4,354,938)	(4,035,119)
Total liabilities and stockholders' equity	$ (6,983,208)	$ (6,842,760)