Commitments And Contingencies And Related Party Transactions (Narrative) (Details)	3 Months Ended	12 Months Ended
	Dec. 31, 2017 USD ($)	Dec. 31, 2019 USD ($) hotel	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Management Agreements [Abstract]
Term of management agreements with HHMLP		5 years
Base management fee as percentage of gross revenues (in hundredths)		3.00%
Base management fees incurred	$ 13,447,000	$ 14,123,000	$ 13,309,000
Incentive management fees incurred	0	$ 161,000	98,000
Franchise Agreements [Abstract]
Terms of franchise agreements, minimum		10 years
Terms of franchise agreements, maximum		20 years
Accounting and Information Technology Fees [Abstract]
Monthly fees for accounting services per property for hotels managed by HHMLP, minimum		$ 2,000
Monthly fees for accounting services per property for hotels managed by HHMLP, maximum		3,000
Monthly information technology fees per property for hotels managed by HHMLP, minimum		1,000
Monthly information technology fees per property for hotels managed by HHMLP, maximum		2,000
Accounting fees	1,318,000	1,261,000	1,235,000
Information technology fees	434,000	$ 402,000	402,000
Capital Expenditure Fees [Abstract]
Fee on all capital expenditures and pending renovation projects at the properties (in hundredths)		5.00%
Fees incurred on capital expenditures	1,125,000	$ 2,525,000	2,511,000
Acquisitions From Affiliates [Abstract]
Period of right of first refusal per option agreement with officers and affiliated trustees after termination		1 year
Hotel Supplies [Abstract]
Hotel supplies	215,000	$ 307,000	470,000
Charges for capital expenditure purchases	2,099,000	12,721,000	2,258,000
Capital expenditures included in accounts payable		9,000	0
Insurance Services [Abstract]
Property insurance		$ 5,934,000	4,799,000	$ 3,884,000
Lessee Disclosure [Abstract]
Number Of hotel properties | hotel		3
Due from Related Parties, Unclassified [Abstract]
Due from related parties		$ 6,113,000	3,294,000
Due to Related Parties [Abstract]
Due to related parties		0	0
Franchise [Member]
Franchise Agreements [Abstract]
Franchise fee expense	$ 23,645,000	$ 23,389,000	22,802,000
Executive Officer [Member]
Lessee Disclosure [Abstract]
Ownership percentage in related party		70.00%
Executive Officer [Member] | Lease Agreements [Member]
Lessee Disclosure [Abstract]
Term of lease		5 years
Revenue from related parties		$ 323,000	$ 0	$ 0