Summary of Significant Accounting Policies (Narrative) (Details) $ in Millions	3 Months Ended
Jun. 30, 2021 USD ($) hotel	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Amortized cost basis of financing receivables	$ 411.9
Accrued interest on financing receivables	$ 18.6
Financing receivable threshold period past due	30 days
COVID-19
Financing Receivable, Allowance for Credit Loss [Line Items]
Number of hotel closed \| hotel	3
COVID-19 \| Embassy Suites at Hughes Landing
Financing Receivable, Allowance for Credit Loss [Line Items]
Occupancy percentage	68.00%	55.00%
COVID-19 \| Westin at The Woodlands
Financing Receivable, Allowance for Credit Loss [Line Items]
Occupancy percentage	49.00%	28.00%
COVID-19 \| The Woodlands Resort and Conference Center
Financing Receivable, Allowance for Credit Loss [Line Items]
Occupancy percentage	31.00%	27.00%

Hotel And Resort, Occupancy Percentage

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