Notes Payable - Transactions (Details) - USD ($) $ in Millions	1 Months Ended	9 Months Ended	12 Months Ended
	Oct. 31, 2018	Sep. 30, 2018	Dec. 31, 2019	Dec. 31, 2018
Amended Credit Facility | 2018 Debt Transactions
Debt Transactions
Amount available under amended credit facility agreement	$ 500.0
Increase in amount available under amended credit facility agreement	100.0
Maximum borrowing capacity under amended credit facility with lender approval	$ 800.0
Interest rate, description of reference rate	one-month LIBOR
Debt maturity date	Apr. 14, 2023
Previous Credit Facility Before Amendment | 2018 Debt Transactions
Debt Transactions
Interest rate, description of reference rate		one-month LIBOR
Debt maturity date		Apr. 02, 2019
Unsecured Term Loans | 2018 Debt Transactions
Debt Transactions
Interest rate, description of reference rate	one-month LIBOR	one-month LIBOR
$85.0 million term loan
Debt Transactions
Interest rate, description of reference rate			one-month LIBOR	one-month LIBOR
Debt maturity date			Sep. 03, 2022	Sep. 03, 2022
Term loan total interest rate, including effect of swap agreement			2.941%	2.941%
$85.0 million term loan | 2018 Debt Transactions
Debt Transactions
Term loan total interest rate, including effect of swap agreement	2.941%	3.391%
$100.0 million term loan
Debt Transactions
Interest rate, description of reference rate			one-month LIBOR	one-month LIBOR
Debt maturity date			Jan. 31, 2023	Jan. 31, 2023
Term loan total interest rate, including effect of swap agreement			3.203%	3.203%
$100.0 million term loan | 2018 Debt Transactions
Debt Transactions
Term loan total interest rate, including effect of swap agreement	3.203%	3.653%
Series A Senior Notes
Debt Transactions
Debt maturity date			Jan. 10, 2026	Jan. 10, 2026
Series B Senior Notes
Debt Transactions
Debt maturity date			Jan. 10, 2028	Jan. 10, 2028
Hilton San Diego Bayfront mortgage payable
Debt Transactions
Interest rate added to base rate (as a percent)			1.05%	1.05%
Interest rate, description of reference rate			one-month LIBOR	one-month LIBOR
Debt maturity date			Dec. 09, 2020	Dec. 09, 2020
Minimum | Amended Credit Facility | 2018 Debt Transactions
Debt Transactions
Interest rate added to base rate (as a percent)	1.40%
Minimum | Previous Credit Facility Before Amendment | 2018 Debt Transactions
Debt Transactions
Interest rate added to base rate (as a percent)		1.55%
Minimum | Unsecured Term Loans | 2018 Debt Transactions
Debt Transactions
Interest rate added to base rate (as a percent)	1.35%	1.80%
Minimum | $85.0 million term loan
Debt Transactions
Interest rate added to base rate (as a percent)			1.35%	1.35%
Minimum | $100.0 million term loan
Debt Transactions
Interest rate added to base rate (as a percent)			1.35%	1.35%
Maximum | Amended Credit Facility | 2018 Debt Transactions
Debt Transactions
Interest rate added to base rate (as a percent)	2.25%
Maximum | Previous Credit Facility Before Amendment | 2018 Debt Transactions
Debt Transactions
Interest rate added to base rate (as a percent)		2.30%
Maximum | Unsecured Term Loans | 2018 Debt Transactions
Debt Transactions
Interest rate added to base rate (as a percent)	2.20%	2.55%
Maximum | $85.0 million term loan
Debt Transactions
Interest rate added to base rate (as a percent)			2.20%	2.20%
Maximum | $100.0 million term loan
Debt Transactions
Interest rate added to base rate (as a percent)			2.20%	2.20%
Not designated as hedging instrument | Interest Rate Cap | Hilton San Diego Bayfront previous mortgage payable
Debt Transactions
Interest rate, description of reference rate			one-month LIBOR	one-month LIBOR
Not designated as hedging instrument | Interest Rate Swap | $85.0 million term loan
Debt Transactions
Interest rate, description of reference rate			one-month LIBOR	one-month LIBOR
Not designated as hedging instrument | Interest Rate Swap | $100.0 million term loan
Debt Transactions
Interest rate, description of reference rate			one-month LIBOR	one-month LIBOR