Related Party Transactions (Details)					3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 01, 2020 USD ($) installment	Mar. 20, 2020 USD ($)	Nov. 06, 2019 USD ($)	Jan. 24, 2017	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)	Mar. 31, 2020 USD ($)	Sep. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Jun. 21, 2017 USD ($)
Related Party Transaction [Line Items]
Total revenues					$ 45,598,000	$ 63,466,000	$ 179,440,000	$ 126,786,000
Deferred revenue					20,237,000	11,226,000	20,237,000	11,226,000	$ 13,280,000	$ 18,250,000		$ 13,171,000	$ 13,544,000
Advisory agreement, amount due upon approval														$ 5,000,000.0
Advisory agreement, initial term				10 years
JSAV
Related Party Transaction [Line Items]
Total revenues					970,000	30,127,000	$ 30,644,000	61,102,000
Remington
Related Party Transaction [Line Items]
Base management fee, percentage of hotel revenues			3.00%				3.00%		3.00%
Lismore Capital LLC and Ashford Trust
Related Party Transaction [Line Items]
Total revenues							$ 689,000
Lismore Capital LLC and Ashford Trust | Subsequent Event
Related Party Transaction [Line Items]
Agreement term	24 months
Amount of fee entitled to receive	$ 2,600,000
Monthly installment fee	$ 857,000
Aggregate and installment fee, percent	0.25%
Extension term	12 months
Aggregate amount of transaction	$ 8,300,000
Financing amount	$ 4,100,000,000
Fee multiple, percent	0.125%
Number of installments | installment	3
Lismore Capital LLC and Ashford Trust | Payable Reduction | Subsequent Event
Related Party Transaction [Line Items]
Agreement terms, percent	0.10%
Lismore Capital LLC and Ashford Trust | Advisory Services Fee | Subsequent Event
Related Party Transaction [Line Items]
Agreement terms, percent	0.75%
Lismore Capital LLC and Ashford Trust | Percent of Conversion Value | Subsequent Event
Related Party Transaction [Line Items]
Agreement terms, percent	1.50%
Lismore Capital LLC and Ashford Trust | Percent of Face Value | Subsequent Event
Related Party Transaction [Line Items]
Agreement terms, percent	50.00%
Lismore Capital LLC | Braemar
Related Party Transaction [Line Items]
Aggregate and installment fee, percent		0.50%
Financing amount		$ 1,100,000,000
Fee multiple, percent		0.25%
Total revenues							646,000
Advisory services fee percentage		0.125%
Advisory services fee, installment percentage		0.125%
Ashford Trust
Related Party Transaction [Line Items]
Total revenues					33,898,000	22,487,000	120,260,000	44,661,000
Cost of revenues for audio visual					3,000	1,862,000	2,014,000	3,546,000
ERFP commitments					11,400,000		11,400,000		$ 11,400,000
Amount received							2,500,000
Remaining commitment amount					11,400,000		11,400,000
Ashford Trust | Affiliated Entity
Related Party Transaction [Line Items]
Program commitment amount					$ 50,000,000		$ 50,000,000
Program percent of commitment for each hotel					10.00%		10.00%
Remaining commitment amount									$ 11,400,000
Ashford Trust | Affiliated Entity | Maximum
Related Party Transaction [Line Items]
Program potential commitment amount					$ 100,000,000		$ 100,000,000
Ashford Trust | Corporate and Other
Related Party Transaction [Line Items]
Total revenues					1,456,000	461,000	2,634,000	1,979,000
Ashford Trust | Base advisory fee
Related Party Transaction [Line Items]
Total revenues					8,557,000	8,415,000	17,474,000	16,460,000
Ashford Trust | Debt placement and related fees
Related Party Transaction [Line Items]
Total revenues					689,000	79,000	817,000	1,158,000
Ashford Trust | Claims management services
Related Party Transaction [Line Items]
Total revenues					27,000	20,000	46,000	31,000
Ashford Trust | Lease revenue
Related Party Transaction [Line Items]
Total revenues					0	945,000	0	1,891,000
Ashford Trust | Other services
Related Party Transaction [Line Items]
Total revenues					336,000	409,000	786,000	876,000
Ashford Trust | Total other revenue
Related Party Transaction [Line Items]
Total revenues					1,052,000	1,453,000	1,649,000	3,956,000
Ashford Trust | Remington
Related Party Transaction [Line Items]
Total revenues					20,739,000	0	86,274,000	0
Ashford Trust | REIT Advisory
Related Party Transaction [Line Items]
Total revenues					10,354,000	16,923,000	25,962,000	32,612,000
Ashford Trust | OpenKey
Related Party Transaction [Line Items]
Total revenues					30,000	27,000	129,000	55,000
Braemar
Related Party Transaction [Line Items]
Total revenues					7,973,000	8,490,000	19,320,000	16,708,000
Cost of revenues for audio visual					0	119,000	447,000	205,000
Amount received							834,000
Braemar | Corporate and Other
Related Party Transaction [Line Items]
Total revenues					849,000	266,000	1,480,000	790,000
Braemar | REIT Advisory
Related Party Transaction [Line Items]
Total revenues					5,184,000	5,718,000	10,530,000	10,645,000
Braemar | OpenKey
Related Party Transaction [Line Items]
Total revenues					11,000	13,000	71,000	33,000
Ashford Trust and Braemar | Maximum
Related Party Transaction [Line Items]
Amount committed											$ 15,000,000.0
Hotel management
Related Party Transaction [Line Items]
Total revenues					3,691,000	0	9,815,000	0
Hotel management | Remington
Related Party Transaction [Line Items]
Monthly hotel management fee			$ 14,000
Base fee
Related Party Transaction [Line Items]
Total revenues					3,691,000	0	9,815,000	0
Base fee | Ashford Trust
Related Party Transaction [Line Items]
Total revenues					3,504,000	0	9,197,000	0
Base fee | Braemar
Related Party Transaction [Line Items]
Total revenues					154,000	0	509,000	0
Project management
Related Party Transaction [Line Items]
Total revenues					2,052,000	6,430,000	5,990,000	12,872,000
Cost of revenues for audio visual					878,000	1,442,000	2,329,000	2,915,000
Project management | Premier
Related Party Transaction [Line Items]
Total revenues					2,052,000	6,430,000	5,990,000	12,872,000
Project management | Ashford Trust
Related Party Transaction [Line Items]
Total revenues					838,000	4,273,000	3,920,000	8,289,000
Project management | Ashford Trust | Premier
Related Party Transaction [Line Items]
Total revenues					1,319,000	5,076,000	5,261,000	10,015,000
Project management | Braemar
Related Party Transaction [Line Items]
Total revenues					712,000	2,078,000	1,455,000	4,449,000
Project management | Braemar | Remington
Related Party Transaction [Line Items]
Total revenues					1,032,000	0	5,249,000	0
Project management | Braemar | Premier
Related Party Transaction [Line Items]
Total revenues					897,000	2,493,000	1,990,000	5,240,000
Audio visual
Related Party Transaction [Line Items]
Total revenues					970,000	30,127,000	30,644,000	61,102,000
Cost of revenues for audio visual					2,316,000	22,229,000	22,746,000	43,668,000
Audio visual | JSAV
Related Party Transaction [Line Items]
Total revenues					970,000	30,127,000	30,644,000	61,102,000
Audio visual | Ashford Trust
Related Party Transaction [Line Items]
Total revenues					0	0	0	0
Audio visual | Ashford Trust | REIT Advisory
Related Party Transaction [Line Items]
Total revenues					7,000	4,227,000	4,604,000	8,050,000
Audio visual | Braemar
Related Party Transaction [Line Items]
Total revenues					0	0	0	0
Audio visual | Braemar | REIT Advisory
Related Party Transaction [Line Items]
Total revenues					0	266,000	1,005,000	449,000
Cost reimbursement revenue
Related Party Transaction [Line Items]
Total revenues					24,118,000	11,337,000	99,697,000	21,310,000
Cost reimbursement revenue | Ashford Trust
Related Party Transaction [Line Items]
Total revenues					19,947,000	8,346,000	88,020,000	15,956,000
Amount received					462,000		1,200,000
Cost reimbursement revenue | Braemar
Related Party Transaction [Line Items]
Total revenues					3,490,000	2,940,000	10,360,000	5,254,000
Amount received					159,000		430,000
Advisory services revenue: | Braemar | Base advisory fee
Related Party Transaction [Line Items]
Total revenues					2,573,000	2,775,000	5,193,000	5,352,000
Advisory services revenue: | Braemar | Incentive advisory fee
Related Party Transaction [Line Items]
Total revenues					169,000	169,000	339,000	339,000
Advisory services revenue: | Braemar | Other advisory revenue
Related Party Transaction [Line Items]
Total revenues					131,000	130,000	260,000	258,000
Advisory services revenue: | Braemar | Total advisory services revenue
Related Party Transaction [Line Items]
Total revenues					2,873,000	3,074,000	5,792,000	5,949,000
Other revenue
Related Party Transaction [Line Items]
Total revenues					3,337,000	4,083,000	10,028,000	9,093,000
Other revenue | Braemar | Debt placement and related fees
Related Party Transaction [Line Items]
Total revenues					646,000	0	646,000	275,000
Other revenue | Braemar | Claims management services
Related Party Transaction [Line Items]
Total revenues					45,000	35,000	83,000	65,000
Other revenue | Braemar | Lease revenue
Related Party Transaction [Line Items]
Total revenues					0	84,000	0	168,000
Other revenue | Braemar | Other services
Related Party Transaction [Line Items]
Total revenues					53,000	279,000	475,000	548,000
Other revenue | Braemar | Total other revenue
Related Party Transaction [Line Items]
Total revenues					$ 744,000	$ 398,000	$ 1,204,000	$ 1,056,000