Segment Reporting Segment reporting (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Segment Reporting Information [Line Items]
Time Share Revenue		$ 318,555	$ 211,321	$ 214,764
Provision for Uncollectible Vacation Interest Sales Revenue		25,457	16,562	12,655
Vacation Interest Net		293,098	194,759	202,109
Management and member services		114,937	99,306	86,206
Consolidated Resort Operations		33,756	29,893	26,547
Interest Income, Operating		53,206	47,285	39,327
Other Operating Income		28,671	19,778	16,636
Revenues		523,668	391,021	370,825
Time Share Costs		32,150	(9,695)	39,730
Marketing and Advertising Expense		178,365	128,717	114,029
Vacation Interest Carrying Cost Net		36,363	41,331	29,821
Management and member services costs and expenses		35,330	27,125	22,444
Consolidated Resort Operations Costs and Expenses		30,311	27,783	23,972
Loan Portfolio Expense		9,486	8,652	8,600
Other Cost and Expense, Operating		8,507	3,399	3,168
General and Administrative Expense		99,015	80,412	67,905
Depreciation, Depletion and Amortization, Nonproduction		18,857	13,966	11,939
Interest Expense		96,157	82,010	67,162
Gains (Losses) on Extinguishment of Debt		0	0	1,081
Impairments and other write-offs		1,009	1,572	3,330
Gain (Loss) on Disposition of Assets		605	708	1,923
Business Combination, Bargain Purchase, Gain Recognized, Amount		20,610	14,329	0
Costs and Expenses		524,335	390,235	391,258
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest		(667)	786	(20,433)
Income Tax Expense (Benefit)		(14,310)	(9,517)	(1,274)
Net income (loss)	10,303	13,643	10,303	(19,159)	(19,159)
Hospitality and Management Services [Member]
Segment Reporting Information [Line Items]
Vacation Interest Net		0	0	0
Management and member services		114,937	99,306	86,206
Consolidated Resort Operations		33,756	29,893	26,547
Interest Income, Operating		0	0	0
Other Operating Income		4,595	8,079	4,969
Revenues		153,288	137,278	117,722
Time Share Costs		0	0	0
Marketing and Advertising Expense		0	0	0
Vacation Interest Carrying Cost Net		0	0	0
Management and member services costs and expenses		35,330	27,125	22,444
Consolidated Resort Operations Costs and Expenses		30,311	27,783	23,972
Loan Portfolio Expense		858	1,211	1,025
Other Cost and Expense, Operating		0	0	0
General and Administrative Expense		0	0	0
Depreciation, Depletion and Amortization, Nonproduction		0	0	0
Interest Expense		0	0	0
Gains (Losses) on Extinguishment of Debt				0
Impairments and other write-offs		0	0	0
Gain (Loss) on Disposition of Assets		0	0	0
Business Combination, Bargain Purchase, Gain Recognized, Amount		0	0
Costs and Expenses		66,499	56,119	47,441
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest		86,789	81,159	70,281
Income Tax Expense (Benefit)		0	0	0
Net income (loss)		86,789	81,159	70,281
Vacation Interest Sales and Financing [Member]
Segment Reporting Information [Line Items]
Vacation Interest Net		293,098	194,759	202,109
Management and member services		0	0	0
Consolidated Resort Operations		0	0	0
Interest Income, Operating		51,769	44,410	39,150
Other Operating Income		24,076	11,699	11,667
Revenues		368,943	250,868	252,926
Time Share Costs		32,150	(9,695)	39,730
Marketing and Advertising Expense		178,365	128,717	114,029
Vacation Interest Carrying Cost Net		36,363	41,331	29,821
Management and member services costs and expenses		0	0	0
Consolidated Resort Operations Costs and Expenses		0	0	0
Loan Portfolio Expense		8,628	7,441	7,575
Other Cost and Expense, Operating		8,507	3,399	3,168
General and Administrative Expense		0	0	0
Depreciation, Depletion and Amortization, Nonproduction		0	0	0
Interest Expense		18,735	18,624	18,203
Gains (Losses) on Extinguishment of Debt				0
Impairments and other write-offs		0	0	0
Gain (Loss) on Disposition of Assets		0	0	0
Business Combination, Bargain Purchase, Gain Recognized, Amount		0	0
Costs and Expenses		282,748	189,817	212,526
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest		86,195	61,051	40,400
Income Tax Expense (Benefit)		0	0	0
Net income (loss)		86,195	61,051	40,400
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Vacation Interest Net		0	0	0
Management and member services		0	0	0
Consolidated Resort Operations		0	0	0
Interest Income, Operating		1,437	2,875	177
Other Operating Income		0	0	0
Revenues		1,437	2,875	177
Time Share Costs		0	0	0
Marketing and Advertising Expense		0	0	0
Vacation Interest Carrying Cost Net		0	0	0
Management and member services costs and expenses		0	0	0
Consolidated Resort Operations Costs and Expenses		0	0	0
Loan Portfolio Expense		0	0	0
Other Cost and Expense, Operating		0	0	0
General and Administrative Expense		99,015	80,412	67,905
Depreciation, Depletion and Amortization, Nonproduction		18,857	13,966	11,939
Interest Expense		77,422	63,386	48,959
Gains (Losses) on Extinguishment of Debt				1,081
Impairments and other write-offs		1,009	1,572	3,330
Gain (Loss) on Disposition of Assets		605	708	1,923
Business Combination, Bargain Purchase, Gain Recognized, Amount		20,610	14,329
Costs and Expenses		175,088	144,299	131,291
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest		(173,651)	(141,424)	(131,114)
Income Tax Expense (Benefit)		(14,310)	(9,517)	(1,274)
Net income (loss)		$ (159,341)	$ (131,907)	$ (129,840)

Diamond Resorts Corp 10-K