Summary of Significant Accounting Policies - Additional Information (Details) $ / shares in Units, $ in Thousands														12 Months Ended
	Jan. 14, 2022 $ / shares	Oct. 08, 2021 $ / shares	Jul. 09, 2021 $ / shares	Apr. 09, 2021 $ / shares	Jan. 08, 2021 $ / shares	Oct. 09, 2020 $ / shares	Jul. 10, 2020 $ / shares	Apr. 10, 2020 $ / shares	Jan. 10, 2020 $ / shares	Oct. 15, 2019	Oct. 11, 2019 $ / shares	Jul. 12, 2019 $ / shares	Apr. 12, 2019 $ / shares	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Jan. 01, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Significant Accounting Policies
Stock split ratio										2
Intangibles including goodwill														$ 55,400	$ 12,500
Intangible assets														38,000	4,700
Goodwill														17,400
Accumulated amortization of identified intangible assets														3,300	3,200
Expected to be recognized in year one														3,200
Expected to be recognized in year two														3,200
Expected to be recognized in year three														3,200
Expected to be recognized in year four														3,200
Expected to be recognized in year five														$ 3,200
Remaining useful life														15 years
Cash and cash equivalents, restricted cash														$ 29,300	24,100
Deferred financing costs														$ 28,900	27,900
Estimated membership upgrade contract term														20 years
OP units to common stock exchange ratio														1
Operating loss carryforwards														$ 50,900	74,100
Net operating loss carryforward offset tax														23,200
Aggregate cost in real estate U.S federal tax basis														4,600,000
Net investment in notes receivable U.S federal tax basis														46,200
Quarterly distribution paid per common share (usd per share) | $ / shares		$ 0.3625	$ 0.3625	$ 0.3625	$ 0.3425	$ 0.3425	$ 0.3425	$ 0.3425	$ 0.3063		$ 0.3063	$ 0.3063	$ 0.3063
Cumulative effect of change in accounting principle														$ 1,486,171	$ 1,304,755		$ 1,321,888	$ 1,193,344
Subsequent Event
Significant Accounting Policies
Quarterly distribution paid per common share (usd per share) | $ / shares	$ 0.3625
Quarterly distribution for tax purposes (usd per share) | $ / shares	$ 0.3625
Minimum
Significant Accounting Policies
Lessor operating lease term														1 month
Maximum
Significant Accounting Policies
Lessor operating lease term														6 months
Cumulative Effect, Period of Adoption, Adjustment
Significant Accounting Policies
Cumulative effect of change in accounting principle																$ (3,900)	$ (3,875)
2020 Distributions
Significant Accounting Policies
Quarterly distribution paid per common share (usd per share) | $ / shares					$ 0.087801
Operating Partnership
Significant Accounting Policies
Ownership interest (percent)														95.20%