Acquisitions - Narrative (Details) - USD ($)				3 Months Ended			6 Months Ended
	Nov. 06, 2019	Jul. 18, 2019	Mar. 01, 2019	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	May 07, 2020	May 06, 2020	Dec. 31, 2019	Feb. 28, 2019
Business Acquisition [Line Items]
Impairment				$ 0	$ 170,600,000
Asset impairment charges				0	5,500,000
Contingent consideration				2,225,000			$ 2,225,000				$ 5,627,000
Non-recurring transaction costs				$ 158,000				$ 563,000
RED
Business Acquisition [Line Items]
Ownership by parent		84.00%		84.21%			84.21%				84.21%
Remington
Business Acquisition [Line Items]
Fair value of Ashford Inc. common stock issued	$ 275,000,000
Equity interest issued (in shares)	11,000,000
Favorable lease terms	$ 4,200,000
Increase to value of management contracts					40,900,000
Increase to deferred tax liability					10,300,000
Increase in the fair value of the purchase price					1,300,000
Acquisition revenues				$ 22,500,000			$ 92,900,000
Net income (loss) from acquisition				(2,700,000)			(129,900,000)
Impairment							121,000,000.0
Asset impairment charges							5,500,000
Sebago
Business Acquisition [Line Items]
Fair value of Ashford Inc. common stock issued		$ 4,547,000
Equity interest issued (in shares)		135,366
Cash payment					1,000,000.0
Acquisition revenues				442,000			1,800,000
Net income (loss) from acquisition				(242,000)			(251,000)
Cash consideration		$ 2,500,000
Share price (in dollars per share)		$ 33.24
Goodwill expected tax deductible		$ 1,200,000
Contingent consideration											$ 1,000,000.0
JSAV
Business Acquisition [Line Items]
Voting interests acquired			88.00%									85.00%
BAV
Business Acquisition [Line Items]
Fair value of Ashford Inc. common stock issued			$ 3,748,000
Equity interest issued (in shares)			61,387
Acquisition revenues				118,000		$ 3,900,000	2,900,000	5,700,000
Net income (loss) from acquisition				(205,000)		$ 619,000	401,000	947,000
Cash consideration			$ 5,000,000.0				0	$ 4,267,000
Share price (in dollars per share)			$ 57.01
Goodwill expected tax deductible			$ 4,800,000
Interest issued and issuable, 18 months			500,000
Contingent consideration possible			$ 1,400,000	3,700,000			3,700,000				4,600,000
Contingent consideration				2,200,000			2,200,000				$ 1,600,000
Settlement term one			12 months
Settlement term two			15 months
Settlement term three			18 months
Cash, contingent consideration and stock consideration related to acquisition									$ 1,500,000	$ 1,500,000
BAV | Minimum
Business Acquisition [Line Items]
Payable term			12 months
BAV | Maximum
Business Acquisition [Line Items]
Payable term			18 months
Contingent consideration				$ 3,000,000.0	$ 3,000,000.0		$ 3,000,000.0
Common Stock | BAV
Business Acquisition [Line Items]
Fair value of Ashford Inc. common stock issued			$ 3,500,000