Summary of Significant Accounting Policies (Policies)	9 Months Ended
Sep. 30, 2021
Accounting Policies [Abstract]
Basis of Presentation and Principles of Consolidation	Basis of Presentation and Principles of Consolidation The unaudited consolidated financial statements and related notes have been prepared on the accrual basis of accounting in accordance with accounting principles generally accepted in the United States of America ("GAAP") and in conformity with the rules and regulations of the Securities and Exchange Commission ("SEC") applicable to financial information. The unaudited financial statements include all adjustments that are necessary, in the opinion of management, to fairly state the consolidated balance sheets, statements of operations and comprehensive loss, statements of changes in equity and statements of cash flows. The unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto as of and for the year ended December 31, 2020, included in the Company's Annual Report on Form 10-K filed with the SEC on February 26, 2021. The consolidated financial statements include the accounts of the Company, the Operating Partnership and its wholly-owned subsidiaries, and joint ventures in which the Company has a majority voting interest and control. For the controlled subsidiaries that are not wholly-owned, the third-party ownership interest represents a noncontrolling interest, which is presented separately in the consolidated financial statements. The Company also records the real estate interests in two joint ventures in which it holds an indirect 50% interest using the equity method of accounting. All intercompany balances and transactions have been eliminated in consolidation.
Use of Estimates	Use of Estimates The preparation of the Company’s financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of certain assets and liabilities and the amounts of contingent assets and liabilities at the balance sheet date and the reported amounts of revenues and expenses during the reporting period. Given the additional and unforeseen effects from the COVID-19 pandemic, these estimates have become more challenging, and actual results could differ from those estimates.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements In December 2019, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. The guidance enhances and simplifies various aspects of the current income tax guidance and reduces complexity by removing certain exceptions to the general framework. The Company adopted this new standard on January 1, 2021. The adoption of this standard did not have a material impact on the Company's consolidated financial statements. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. The guidance provides optional expedients for applying GAAP to contracts, hedging relationships, and other transactions that reference the London Interbank Offered Rate ("LIBOR") or another reference rate expected to be discontinued at the end of 2021 because of reference rate reform. The guidance was effective upon issuance and expires on December 31, 2022. Based on the Company's assessment, there was no material impact arising from this guidance and the Company did not elect to apply any of the optional expedients.
Management Agreements	Management Agreements As of September 30, 2021, 97 of the Company's hotel properties were operated pursuant to long-term management agreements with initial terms ranging from one to 25 years. This number includes 29 hotel properties that receive the benefits of a franchise agreement pursuant to management agreements with Hilton, Hyatt, or Marriott. Each management company receives a base management fee between 1.75% and 3.5% of hotel revenues. Management agreements that include the benefits of a franchise agreement incur a base management fee between 3.0% and 7.0% of hotel revenues. The management companies are also eligible to receive an incentive management fee if hotel operating income, as defined in the management agreements, exceeds certain thresholds. The incentive management fee is generally calculated as a percentage of hotel operating income after the Company has received a priority return on its investment in the hotel. Management fees are included in management and franchise fee expense in the accompanying consolidated statements of operations and comprehensive loss. For the three and nine months ended September 30, 2021, the Company incurred management fee expense of approximately $7.0 million and $16.4 million, respectively. For the three and nine months ended September 30, 2020, the Company incurred management fee expense of approximately $2.3 million and $10.9 million, respectively.
Franchise Agreements	Franchise Agreements As of September 30, 2021, 67 of the Company’s hotel properties were operated under franchise agreements with initial terms ranging from one to 30 years. This number excludes 29 hotel properties that receive the benefits of a franchise agreement pursuant to management agreements with Hilton, Hyatt, or Marriott. In addition, one hotel is not operated with a hotel brand so it does not have a franchise agreement. Franchise agreements allow the hotel properties to operate under the respective brands. Pursuant to the franchise agreements, the Company pays a royalty fee, between 3.0% and 6.0% of room revenue, plus additional fees for marketing, central reservation systems and other franchisor costs between 1.0% and 4.3% of room revenue. Certain hotels are also charged a royalty fee of 3.0% of food and beverage revenues. Franchise fees are included in management and franchise fee expense in the accompanying consolidated statements of operations and comprehensive loss. For the three and nine months ended September 30, 2021, the Company incurred franchise fee expense of approximately $12.9 million and $30.5 million, respectively. For the three and nine months ended September 30, 2020, the Company incurred franchise fee expense of approximately $4.7 million and $20.3 million, respectively.
Share-Based Compensation	Share Awards From time to time, the Company may award unvested restricted shares as compensation to officers, employees and non-employee trustees. The issued shares vest over a period of time as determined by the board of trustees at the date of grant. The Company recognizes compensation expense for time-based unvested restricted shares on a straight-line basis over the vesting period based upon the fair market value of the shares on the date of issuance, adjusted for forfeitures. Non-employee trustees may also elect to receive unrestricted shares as compensation that would otherwise be paid in cash for their services. The shares issued to non-employee trustees in lieu of cash compensation are unrestricted and include no vesting conditions. The Company recognizes compensation expense for the unrestricted shares issued in lieu of cash compensation on the date of issuance based upon the fair market value of the shares on that date.
Earnings Per Share	Basic earnings per common share is calculated by dividing net income attributable to common shareholders by the weighted-average number of common shares outstanding during the period excluding the weighted-average number of unvested restricted shares outstanding during the period. Diluted earnings per common share is calculated by dividing net income attributable to common shareholders by the weighted-average number of common shares outstanding during the period, plus any shares that could potentially be outstanding during the period. The potential shares consist of the unvested restricted share grants and unvested performance units, calculated using the treasury stock method. Any anti-dilutive shares have been excluded from the diluted earnings per share calculation. Unvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are participating shares and are considered in the computation of earnings per share pursuant to the two-class method. If there were any undistributed earnings allocable to the participating shares, they would be deducted from net income attributable to common shareholders used in the basic and diluted earnings per share calculations. The limited partners’ outstanding OP units (which may be redeemed for common shares under certain circumstances) have been excluded from the diluted earnings per share calculation as there was no effect on the amounts for the three and nine months ended September 30, 2021 and 2020, since the limited partners’ share of income would also be added back to net income attributable to common shareholders.

Summary of Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2021

Basis of Presentation and Principles of Consolidation

The unaudited consolidated financial statements and related notes have been prepared on the accrual basis of accounting in accordance with accounting principles generally accepted in the United States of America ("GAAP") and in conformity with the rules and regulations of the Securities and Exchange Commission ("SEC") applicable to financial information. The unaudited financial statements include all adjustments that are necessary, in the opinion of management, to fairly state the consolidated balance sheets, statements of operations and comprehensive loss, statements of changes in equity and statements of cash flows.

The unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto as of and for the year ended December 31, 2020, included in the Company's Annual Report on Form 10-K filed with the SEC on February 26, 2021.

The consolidated financial statements include the accounts of the Company, the Operating Partnership and its wholly-owned subsidiaries, and joint ventures in which the Company has a majority voting interest and control. For the controlled subsidiaries that are not wholly-owned, the third-party ownership interest represents a noncontrolling interest, which is

presented separately in the consolidated financial statements. The Company also records the real estate interests in two joint ventures in which it holds an indirect 50% interest using the equity method of accounting. All intercompany balances and transactions have been eliminated in consolidation.

Use of Estimates

The preparation of the Company’s financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of certain assets and liabilities and the amounts of contingent assets and liabilities at the balance sheet date and the reported amounts of revenues and expenses during the reporting period. Given the additional and unforeseen effects from the COVID-19 pandemic, these estimates have become more challenging, and actual results could differ from those estimates.

Recently Issued Accounting Pronouncements

In December 2019, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. The guidance enhances and simplifies various aspects of the current income tax guidance and reduces complexity by removing certain exceptions to the general framework. The Company adopted this new standard on January 1, 2021. The adoption of this standard did not have a material impact on the Company's consolidated financial statements.

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. The guidance provides optional expedients for applying GAAP to contracts, hedging relationships, and other transactions that reference the London Interbank Offered Rate ("LIBOR") or another reference rate expected to be discontinued at the end of 2021 because of reference rate reform. The guidance was effective upon issuance and expires on December 31, 2022. Based on the Company's assessment, there was no material impact arising from this guidance and the Company did not elect to apply any of the optional expedients.

Management Agreements

As of September 30, 2021, 97 of the Company's hotel properties were operated pursuant to long-term management agreements with initial terms ranging from one to 25 years. This number includes 29 hotel properties that receive the benefits of a franchise agreement pursuant to management agreements with Hilton, Hyatt, or Marriott. Each management company receives a base management fee between 1.75% and 3.5% of hotel revenues. Management agreements that include the benefits of a franchise agreement incur a base management fee between 3.0% and 7.0% of hotel revenues. The management companies are also eligible to receive an incentive management fee if hotel operating income, as defined in the management agreements, exceeds certain thresholds. The incentive management fee is generally calculated as a percentage of hotel operating income after the Company has received a priority return on its investment in the hotel.

Management fees are included in management and franchise fee expense in the accompanying consolidated statements of operations and comprehensive loss. For the three and nine months ended September 30, 2021, the Company incurred management fee expense of approximately $7.0 million and $16.4 million, respectively. For the three and nine months ended September 30, 2020, the Company incurred management fee expense of approximately $2.3 million and $10.9 million, respectively.

Franchise Agreements

As of September 30, 2021, 67 of the Company’s hotel properties were operated under franchise agreements with initial terms ranging from one to 30 years. This number excludes 29 hotel properties that receive the benefits of a franchise agreement pursuant to management agreements with Hilton, Hyatt, or Marriott. In addition, one hotel is not operated with a hotel brand so it does not have a franchise agreement. Franchise agreements allow the hotel properties to operate under the respective brands. Pursuant to the franchise agreements, the Company pays a royalty fee, between 3.0% and 6.0% of room revenue, plus additional fees for marketing, central reservation systems and other franchisor costs between 1.0% and 4.3% of room revenue. Certain hotels are also charged a royalty fee of 3.0% of food and beverage revenues.

Franchise fees are included in management and franchise fee expense in the accompanying consolidated statements of operations and comprehensive loss. For the three and nine months ended September 30, 2021, the Company incurred franchise fee expense of approximately $12.9 million and $30.5 million, respectively. For the three and nine months ended September 30, 2020, the Company incurred franchise fee expense of approximately $4.7 million and $20.3 million, respectively.

Share-Based Compensation

Share Awards

From time to time, the Company may award unvested restricted shares as compensation to officers, employees and non-employee trustees. The issued shares vest over a period of time as determined by the board of trustees at the date of grant. The Company recognizes compensation expense for time-based unvested restricted shares on a straight-line basis over the vesting period based upon the fair market value of the shares on the date of issuance, adjusted for forfeitures.

Non-employee trustees may also elect to receive unrestricted shares as compensation that would otherwise be paid in cash for their services. The shares issued to non-employee trustees in lieu of cash compensation are unrestricted and include no vesting conditions. The Company recognizes compensation expense for the unrestricted shares issued in lieu of cash compensation on the date of issuance based upon the fair market value of the shares on that date.

Earnings Per Share

Basic earnings per common share is calculated by dividing net income attributable to common shareholders by the weighted-average number of common shares outstanding during the period excluding the weighted-average number of unvested restricted shares outstanding during the period. Diluted earnings per common share is calculated by dividing net income attributable to common shareholders by the weighted-average number of common shares outstanding during the period, plus any shares that could potentially be outstanding during the period. The potential shares consist of the unvested restricted share grants and unvested performance units, calculated using the treasury stock method. Any anti-dilutive shares have been excluded from the diluted earnings per share calculation.

Unvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are participating shares and are considered in the computation of earnings per share pursuant to the two-class method. If there were any undistributed earnings allocable to the participating shares, they would be deducted from net income attributable to common shareholders used in the basic and diluted earnings per share calculations.

The limited partners’ outstanding OP units (which may be redeemed for common shares under certain circumstances) have been excluded from the diluted earnings per share calculation as there was no effect on the amounts for the three and nine months ended September 30, 2021 and 2020, since the limited partners’ share of income would also be added back to net income attributable to common shareholders.