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Indebtedness, net - Narrative (Details)							1 Months Ended	3 Months Ended			9 Months Ended
	Mar. 06, 2024 USD ($)	Mar. 01, 2024 USD ($)	Nov. 29, 2023 USD ($)	Jun. 21, 2023 USD ($)	Jun. 09, 2023	Jun. 13, 2018 extension	Jun. 30, 2023 USD ($)	Sep. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Mar. 31, 2024 USD ($)	Mar. 11, 2024 USD ($) hotel	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
Amount of capitalized principal that was amortized								$ 54,000		$ 1,700,000	$ 298,000	$ 6,600,000
Amount of capitalized principal, written-off								0		0	8,000	0
Long-term debt, gross								2,721,927,000			2,721,927,000				$ 3,038,745,000
Repayments of long-term debt	$ 19,000,000										336,492,000	342,935,000
Gain (loss) on derecognition of assets								11,114,000		0	156,748,000	0
Contract asset								365,647,000			365,647,000		$ 378,200,000		0
Interest costs capitalized								1,100,000		$ 1,000,000	3,700,000	$ 1,600,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations | KEYS Pool A & B
Debt Instrument [Line Items]
Gain (loss) on derecognition of assets		$ 133,900,000						11,100,000	$ 11,700,000
Oaktree Credit Agreement
Debt Instrument [Line Items]
Minimum cash requirement														$ 50,000,000
Percent increase on interest rate if cash is below $100 million														3.00%
Cash threshold for interest rate														$ 100,000,000
Increase to interest rate if principal balance is not less than $100 million														3.50%
Principal balance threshold for interest rate														$ 100,000,000
Excess of unrestricted cash past $75 million														75,000,000
Excess of unrestricted cash past $50 million														50,000,000
Excess of unrestricted cash past $25 million														$ 25,000,000
Prepayment percentage of net proceeds from issuance of equity (percent)														50.00%
Increased prepayment percentage of net proceeds from issuance of equity (percent)														100.00%
Cash exit fee (as a percent)														15.00%
Reduction to cash exit fee (as a percent)														12.50%
Number of hotels to sell | hotel														15
Number of hotels required to be sold | hotel														8
Period to sell hotels (in months)														6 months
Mortgages
Debt Instrument [Line Items]
Long-term debt, gross									8,900,000
Credit Agreement
Debt Instrument [Line Items]
Cash exit fee (as a percent)				50.00%
Credit Agreement | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 100,000,000
Initial term of loan (in years)				12 months
Unused capacity, commitment fee (as a percent)				9.00%
Credit Agreement | Mortgages
Debt Instrument [Line Items]
Mortgage debt threshold amount				$ 400,000,000
Mortgage Loan, Aggregate Principal Amount Above Mortgage Debt Threshold Amount | Mortgages
Debt Instrument [Line Items]
Long-term debt, gross				$ 415,000,000
KEYS Mortgage Loans | Mortgages
Debt Instrument [Line Items]
Initial term of loan (in years)						2 years
Number of extension options | extension						5
Term of extension option (in years)					30 days	1 year
KEYS Pool C Loan | Mortgages
Debt Instrument [Line Items]
Repayments of long-term debt							$ 62,400,000
KEYS Pool D Loan | Mortgages
Debt Instrument [Line Items]
Repayments of long-term debt							25,600,000
KEYS Pool E Loan | Mortgages
Debt Instrument [Line Items]
Repayments of long-term debt							$ 41,000,000
KEYS Pool F Loan | Mortgages
Debt Instrument [Line Items]
Extinguishment of debt			$ 215,100,000
Mortgage Loan due June 2024 2.00% | Mortgages
Debt Instrument [Line Items]
Long-term debt, gross								$ 0	$ 8,900,000		$ 0				$ 8,881,000

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