Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Contingency [Line Items]
Tax Cuts and Jobs Act of 2017, decrease to deferred income tax provisions				$ 4,200
Tax Cuts and Jobs Act of 2017, transition tax obligation				17,800
Tax Cuts and Jobs Act of 2017, increase in taxable income				1,500
Franchise tax expense		$ 300	$ 300	$ 200
Frenchman's Reef & Morning Star Beach Resort
Income Tax Contingency [Line Items]
New adjusted tax rate after the reduction (as a percent)		4.40%
State
Income Tax Contingency [Line Items]
Net operating loss carryforwards		$ 2,572	2,975
Valuation allowance		$ 700	$ 700
Scenario, Forecast | Frenchman's Reef & Morning Star Beach Resort
Income Tax Contingency [Line Items]
New adjusted tax rate after the reduction (as a percent)	2.30%