Summary of Fair Value of Financial Instruments - Schedule of Carrying Amounts and Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Financial assets and liabilities measured at fair value:
Derivative assets, Carrying value	$ 195	$ 263
Financial assets not measured at fair value:
Cash and cash equivalents	225,357	92,905	$ 240,316	$ 262,636
Restricted cash, Carrying Value	67,734	74,408	126,649	$ 135,571
Accounts receivable, Carrying value	33,320	21,760
Notes receivable, net, Carrying value	8,408	8,263
Due from Ashford Inc., net	1,506	0
Due from related parties, net	8,177	5,801
Due from third-party hotel managers, Carrying value	11,847	9,383
Financial liabilities not measured at fair value:
Accounts payable and accrued expenses	95,647	99,954
Accrued interest payable	43,630	98,685
Dividends payable, Carrying value	236	868	$ 11,740
Due to Ashford Inc., net, Carrying value	0	13,383
Due to third-party hotel managers, Carrying value	436	184
Carrying Value
Financial assets and liabilities measured at fair value:
Derivative assets, Carrying value	195	263
Derivative liabilities, Carrying value	42,402	0
Financial assets not measured at fair value:
Cash and cash equivalents	225,357	92,905
Restricted cash, Carrying Value	67,734	74,408
Accounts receivable, Carrying value	33,320	21,760
Notes receivable, net, Carrying value	8,408	8,263
Due from Ashford Inc., net	1,506	0
Due from related parties, net	8,177	5,801
Due from third-party hotel managers, Carrying value	11,847	9,383
Financial liabilities not measured at fair value:
Indebtedness, Carrying Value	3,872,413	3,711,297
Accounts payable and accrued expenses	95,647	99,954
Accrued interest payable	43,630	98,685
Dividends payable, Carrying value	236	868
Due to Ashford Inc., net, Carrying value	0	13,383
Due to third-party hotel managers, Carrying value	436	184
Estimated Fair Value
Financial assets and liabilities measured at fair value:
Derivative assets, Estimated fair value	195	263
Derivative liabilities, Estimated fair value	42,402	0
Financial assets not measured at fair value:
Cash and cash equivalents, Estimated fair value	225,357	92,905
Restricted cash, Estimated fair value	67,734	74,408
Accounts receivable, Estimated fair value	33,320	21,760
Due from Ashford, Inc., net, Estimated fair value	1,506	0
Due from related parties, net, Estimated fair value	8,177	5,801
Due from third party hotel managers, Estimated fair value	11,847	9,383
Financial liabilities not measured at fair value:
Accounts payable and accrued expenses, Estimated fair value	95,647	99,954
Accrued interest payable, Estimated fair value	43,630	98,685
Dividends payable, Estimated fair value	236	868
Due to Ashford Inc., net, Estimated fair value	0	13,383
Due to third-party hotel managers, Estimated fair value	436	184
Minimum | Estimated Fair Value
Financial assets not measured at fair value:
Notes receivable, net, Estimated fair value	7,988	7,850
Financial liabilities not measured at fair value:
Indebtedness, Estimated fair value	3,400,661	3,167,369
Maximum | Estimated Fair Value
Financial assets not measured at fair value:
Notes receivable, net, Estimated fair value	8,828	8,676
Financial liabilities not measured at fair value:
Indebtedness, Estimated fair value	$ 3,758,625	$ 3,500,777