Indebtedness - Schedule of Mortgages and Other Notes Payable (Detail) $ in Thousands	12 Months Ended
Dec. 31, 2016 USD ($) Property	Dec. 31, 2015 USD ($)
Debt Instrument [Line Items]
Mortgages and other notes payable	$ 146,251	$ 184,341
Total debt	146,586	185,792
Premium (discount)	0	(53)
Unamortized loan costs	(335)	(1,398)
Total	$ 146,251	$ 184,341
LIBOR
Debt Instrument [Line Items]
30-day LIBOR Rate	0.77%	0.43%
LIBOR \| Minimum
Debt Instrument [Line Items]
Mortgage Debt, interest rate basis point above reference rate		3.00%
LIBOR \| Maximum
Debt Instrument [Line Items]
Mortgage Debt, interest rate basis point above reference rate		3.75%
Attractions Properties
Debt Instrument [Line Items]
Number of properties pledged as collateral \| Property	1
Marinas Property
Debt Instrument [Line Items]
Number of properties pledged as collateral \| Property	3
Non Interest Bearing [Member]
Debt Instrument [Line Items]
Other debt	$ 1,400
Mortgages \| Variable Rate Debt
Debt Instrument [Line Items]
Mortgages and other notes payable	59,796	$ 64,040
Mortgages \| Mortgage Debt, Variable Rate Debt, Maturity September 1, 2019
Debt Instrument [Line Items]
Mortgages and other notes payable	7,648	8,037
Approximate Carrying Value of Collateral	$ 17,700
Mortgages \| Mortgage Debt, Variable Rate Debt, Maturity September 1, 2019 \| LIBOR
Debt Instrument [Line Items]
Mortgage Debt, interest rate basis point above reference rate	3.30%
Mortgages \| Mortgage Debt, Variable Rate Debt, Maturity September 1, 2019 \| Ski and Mountain Lifestyle Properties
Debt Instrument [Line Items]
Number of properties pledged as collateral \| Property	1
Mortgages \| Mortgage Debt, Variable Rate Debt, Maturity November 30, 2017
Debt Instrument [Line Items]
Mortgages and other notes payable	$ 15,531	18,156
Approximate Carrying Value of Collateral	$ 42,800
Mortgages \| Mortgage Debt, Variable Rate Debt, Maturity November 30, 2017 \| LIBOR
Debt Instrument [Line Items]
Mortgage Debt, interest rate basis point above reference rate	3.00%
Mortgages \| Mortgage Debt, Variable Rate Debt, Maturity November 30, 2017 \| Attractions Properties
Debt Instrument [Line Items]
Number of properties pledged as collateral \| Property	1
Mortgages \| Mortgage Debt, Variable Rate Debt, Maturity October 5, 2017
Debt Instrument [Line Items]
Mortgages and other notes payable	$ 36,617	37,847
Approximate Carrying Value of Collateral	$ 137,600
Mortgages \| Mortgage Debt, Variable Rate Debt, Maturity October 5, 2017 \| LIBOR \| Minimum
Debt Instrument [Line Items]
Mortgage Debt, interest rate basis point above reference rate	1.50%
Mortgages \| Mortgage Debt, Variable Rate Debt, Maturity October 5, 2017 \| LIBOR \| Maximum
Debt Instrument [Line Items]
Mortgage Debt, interest rate basis point above reference rate	3.50%
Mortgages \| Mortgage Debt, Variable Rate Debt, Maturity October 5, 2017 \| Ski and Mountain Lifestyle Properties
Debt Instrument [Line Items]
Number of properties pledged as collateral \| Property	4
Mortgages \| Mortgage Debt, Fixed Rate Debt, Maturity September 28, 2016
Debt Instrument [Line Items]
Mortgages and other notes payable	$ 0	18,552
Stated interest rate	6.80%
Approximate Carrying Value of Collateral	$ 0
Mortgages \| Mortgage Debt, Fixed Rate Debt, Maturity September 28, 2016 \| Attractions Properties
Debt Instrument [Line Items]
Number of properties pledged as collateral \| Property	1
Mortgages \| Mortgage Debt, Fixed Rate Debt, Maturity October 5, 2017
Debt Instrument [Line Items]
Mortgages and other notes payable	$ 85,369	90,799
Stated interest rate	6.10%
Approximate Carrying Value of Collateral	$ 184,700
Mortgages \| Mortgage Debt, Fixed Rate Debt, Maturity October 5, 2017 \| Ski and Mountain Lifestyle Properties
Debt Instrument [Line Items]
Number of properties pledged as collateral \| Property	6
Mortgages \| Mortgage Debt, Fixed Rate Debt, Due September 1, 2016 To December 1, 2016
Debt Instrument [Line Items]
Mortgages and other notes payable	$ 0	10,696
Approximate Carrying Value of Collateral	$ 0
Mortgages \| Mortgage Debt, Fixed Rate Debt, Due September 1, 2016 To December 1, 2016 \| Minimum
Debt Instrument [Line Items]
Stated interest rate	6.30%
Mortgages \| Mortgage Debt, Fixed Rate Debt, Due September 1, 2016 To December 1, 2016 \| Maximum
Debt Instrument [Line Items]
Stated interest rate	6.50%
Mortgages \| Mortgage Debt, Fixed Rate Debt, Due September 1, 2016 To December 1, 2016 \| Marinas Property
Debt Instrument [Line Items]
Number of properties pledged as collateral \| Property	3
Other Debt \| Other Debt, Fixed Rate Debt, Maturity December 1, 2020
Debt Instrument [Line Items]
Other debt	$ 1,421	1,705
Approximate Carrying Value of Collateral	0
Mortgages And Other Debt \| Fixed Rate Debt
Debt Instrument [Line Items]
Total fixed rate debt	$ 86,790	$ 121,752

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Number of Real Estate Properties Pledged as Collateral

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

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Contractual interest rate for funds borrowed, under the debt agreement.

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The amount of debt discount (net of debt premium) that was originally recognized at the issuance of the instrument that has yet to be amortized.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Including both current and noncurrent portions, carrying amount as of the balance sheet date of other forms of debt not elsewhere specified in the taxonomy with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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