Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Thousands | May. 19, 2015 | Jan. 01, 2015 | Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014 | Dec. 31, 2014 | Jan. 02, 2015 | Jul. 24, 2013 | Jul. 19, 2013 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Common Stock, Shares Authorized | | | 250,000,000 | | 250,000,000 | | 250,000,000 | | | |
Share Price | $ 32.69 | | | | | | | | $ 14 | |
Percentage shares vested | 25.00% | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | | | | | | | 75.00% | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate | | | | | 0.00% | | | | | |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options | | | $ 2,451 | | $ 2,451 | | | | | |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized | | | 247 | | 247 | | | | | |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options | | | 31,859 | | 31,859 | | | | | |
Allocated Share-based Compensation Expense | | | $ 4,537 | $ 3,336 | $ 12,254 | $ 12,198 | | | | |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | | | | | $ 32.69 | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term | | | | | 1 year 10 months 24 days | | | | | |
Employee Stock Option [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Stock Issued During Period, Shares, Restricted Stock Award, Gross | | | | | 1,067,000 | | | | | |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | | | | | $ 32.69 | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period | | | | | (15,000) | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price | | | | | $ 26.46 | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | | | | | (1,036,000) | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value | | | | | $ 17.29 | | | | | |
Shares, Outstanding | | | 2,552,000 | | 2,552,000 | | | 2,536,000 | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price | | | $ 23.33 | | $ 23.33 | | | $ 16.37 | | |
Parent Company [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate | | | | | 0.00% | 0.00% | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | | | | | $ 10.01 | $ 8.12 | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate | | | | | 44.90% | 52.80% | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term | | | | | 5 years 10 months 10 days | 6 years | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate | | | | | 1.71% | 1.71% | | | | |
Allocated Share-based Compensation Expense | | | $ 4,277 | 1,909 | $ 11,279 | $ 6,171 | | | | |
HM&C Employees [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate | | | | | | 0.00% | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | | | | | | $ 12.30 | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate | | | | | | 52.80% | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term | | | | | | 6 years | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate | | | | | | 1.70% | | | | |
Allocated Share-based Compensation Expense | | | 0 | 1,241 | $ 0 | $ 5,312 | | | | |
Company employees [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | | | | | 1,067,000 | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value | | | 54,611 | | $ 54,611 | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value | | | $ 54,753 | | $ 54,753 | | | $ 101,336 | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number | | | 6,208,000 | | 6,208,000 | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period | | | | | (160,000) | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | | | 8,760,000 | | 8,760,000 | | | 7,868,000 | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price | | | $ 14.59 | | $ 14.59 | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term | | | | | 7 years 9 months 18 days | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period | | | | | (15,000) | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term | | 8 years 9 months 18 days | | | 8 years 1 month 6 days | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price | | | $ 17.14 | | $ 17.14 | | | $ 15.02 | | |
Hospitality and Management Services [Member] | Deferred Compensation, Share-based Payments [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | $ 326 | 350 | $ 951 | 1,314 | | | | |
Vacation Interest Sales and Financing [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 968 | 704 | 2,180 | 2,354 | | | | |
Corporate and Other [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 3,243 | 2,282 | $ 9,123 | 8,530 | | | | |
Former holders of DRP BCU [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Shares, Issued | | | | | | | | | | 3,760,215 |
Certain Eligible Persons [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 1,067,000 | | | | | | 4,408,100 | | | |
granted [Member] | Company employees [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | | | | | $ 32.69 | | | | | |
exercised [Member] | Company employees [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | | | | | 15.72 | | | | | |
forfeited [Member] | Company employees [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price | | | | | $ 26.46 | | | | | |
Management and member services [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 326 | 350 | $ 951 | 1,314 | | | | |
Management and member services [Member] | Hospitality and Management Services [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 326 | 350 | 951 | 1,314 | | | | |
Management and member services [Member] | Vacation Interest Sales and Financing [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 0 | 0 | 0 | 0 | | | | |
Management and member services [Member] | Corporate and Other [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 0 | 0 | 0 | 0 | | | | |
advertising sales and marketing [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 829 | 537 | 1,745 | 1,804 | | | | |
advertising sales and marketing [Member] | Hospitality and Management Services [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 0 | 0 | 0 | 0 | | | | |
advertising sales and marketing [Member] | Vacation Interest Sales and Financing [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 829 | 537 | 1,745 | 1,804 | | | | |
advertising sales and marketing [Member] | Corporate and Other [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 0 | 0 | 0 | 0 | | | | |
Vacation interest carrying costs, net [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 51 | 65 | 166 | 212 | | | | |
Vacation interest carrying costs, net [Member] | Hospitality and Management Services [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 0 | 0 | 0 | 0 | | | | |
Vacation interest carrying costs, net [Member] | Vacation Interest Sales and Financing [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 51 | 65 | 166 | 212 | | | | |
Vacation interest carrying costs, net [Member] | Corporate and Other [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 0 | 0 | 0 | 0 | | | | |
loan portfolio [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 88 | 102 | 269 | 338 | | | | |
loan portfolio [Member] | Hospitality and Management Services [Member] | Deferred Compensation, Share-based Payments [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 0 | 0 | 0 | 0 | | | | |
loan portfolio [Member] | Vacation Interest Sales and Financing [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 88 | 102 | 269 | 338 | | | | |
loan portfolio [Member] | Corporate and Other [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 0 | 0 | 0 | 0 | | | | |
General and Administrative Expense [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 3,243 | 2,282 | 9,123 | 8,530 | | | | |
General and Administrative Expense [Member] | Hospitality and Management Services [Member] | Deferred Compensation, Share-based Payments [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 0 | 0 | 0 | 0 | | | | |
General and Administrative Expense [Member] | Vacation Interest Sales and Financing [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 0 | 0 | 0 | 0 | | | | |
General and Administrative Expense [Member] | Corporate and Other [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 3,243 | 2,282 | 9,123 | 8,530 | | | | |
Director [Member] | Restricted Stock [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Allocated Share-based Compensation Expense | | | 260 | $ 186 | 975 | $ 715 | | | | |
Employee Stock Option [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options | | | $ 24,879 | | $ 24,879 | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term | | | | | 1 year 7 months 6 days | | | | | |
Restricted Stock [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | | | | | 157,000 | | | | | |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | | | | | $ 32.69 | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | | | 164,000 | | 164,000 | | 44,000 | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period | | | | | (16,000) | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price | | | | | $ 28.36 | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | | | | | (21,000) | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value | | | | | $ 19.22 | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price | | | $ 30.63 | | $ 30.63 | | $ 16.92 | | | |
Restricted Stock [Member] | Director [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options | | | $ 4,282 | | $ 4,282 | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term | | | | | 2 years 10 months 24 days | | | | | |
Restricted Stock Units (RSUs) [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | | | | | 86,000 | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | | | 82,000 | | 82,000 | | 0 | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period | | | | | 0 | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price | | | | | $ 0 | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | | | | | (4,000) | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value | | | | | $ 32.69 | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price | | | $ 32.69 | | $ 32.69 | | $ 0 | | | |
Restricted Stock Units (RSUs) [Member] | Director [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term | | | | | 3 years 7 months 6 days | | | | | |
Deferred Compensation, Share-based Payments [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | | | | | 12,000 | | | | | |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | | | | | $ 32.69 | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | | | 0 | | 0 | | 0 | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period | | | | | 0 | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price | | | | | $ 0 | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | | | | | (12,000) | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value | | | | | $ 32.69 | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price | | | $ 32.69 | | $ 32.69 | | $ 0 | | | |
Deferred Compensation, Share-based Payments [Member] | Director [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term | | | | | 7 months 6 days | | | | | |
2015 Plan [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Common Stock, Shares Authorized | 8,500,000 | | | | | | | | | |
Common Stock, Capital Shares Reserved for Future Issuance | | | 7,208,940 | | 7,208,940 | | | | | |