Commitments And Contingencies (Narrative) (Details)			1 Months Ended				12 Months Ended
	Jun. 28, 2018	Feb. 28, 2018 item	Jan. 31, 2021 USD ($)	Jan. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Jun. 30, 2019 USD ($) item	Dec. 31, 2021 store	Dec. 31, 2020 USD ($) store	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2015	Jul. 07, 2020 plaintiff	Feb. 29, 2020 store
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Payments to subsidies								$ 24,000,000.0	$ 24,900,000	$ 12,600,000
Accrued liabilities and other					$ 103,948,000			98,471,000	103,948,000
Inventory purchased								$ 185,000	12,788,000	$ 32,022,000
Average annual default rates								9.80%			6.90%
Percent of total delinquencies subject to letters								9.20%
Number of non-exempt employees represented | item		660
Purchase period, from lawsuit	6 years
Subsidies To Certain HOAs [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Accrued liabilities and other					0			$ 0	$ 0
Former CEO [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Severance expense					$ 3,500,000
Period of future payment					18 months
President And CEO [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Amount of future payment								$ 1,200,000
Bass Pro [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Litigation settlement						$ 20,000,000.0
Settlement agreement, number of annual payments | item						5
Settlement agreement, payment amount				$ 4,000,000.0		$ 4,000,000.0
Number of stores requiring a fixed annual fee | store								59
Accrued claims						$ 39,100,000		$ 14,700,000
Bass Pro [Member] | Subsequent Event [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Settlement agreement, payment amount			$ 4,000,000.0
Cabela [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Number of stores vacation packages are sold | store								10
Cabela [Member] | Forecast [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Number of stores requiring a fixed annual fee | store							60
Bass Pro And Cabela [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Settlement agreement, fixed fee								$ 5,700,000
Reduction of traffic in stores percentage								25.00%
Number of stores vacation packages are sold | store								88					89
Number of stores open | store								98
Robert Barban [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Number of plaintiffs | plaintiff												172
Totten Franqui [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Damages sought from lawsuit								$ 1,000,000.0
Claims percentage								100.00%
Notes Receivable Secured By VOIs [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
VOI sales volume, percentage								12.00%	13.00%