NON-CONTROLLING INTERESTS AND REDEEMABLE NON-CONTROLLING INTERESTS (Details) $ / shares in Units, $ in Millions			1 Months Ended	2 Months Ended	3 Months Ended	12 Months Ended
	Oct. 26, 2022 USD ($) a unit	Jan. 13, 2022 $ / shares shares	Oct. 31, 2022 USD ($)	Mar. 23, 2022 shares	Mar. 31, 2023 room	Dec. 31, 2022 shares	Mar. 31, 2023 state	Mar. 31, 2023 hotel	Mar. 31, 2023 shares	Mar. 31, 2023 Rate	Jun. 30, 2022
Class of Stock [Line Items]
Number of joint ventures entered into | room					3
Number of states in which hotel properties are located | state							24
Redeemable common unit, conversion ratio | Rate										100.00%
Onera Joint Venture
Class of Stock [Line Items]
Number of guestrooms | unit	11
Percentage of equity interest in a joint venture			90.00%
Cash payments to acquire businesses | $			$ 5.2
Joint venture, fee simple interest in property and investments	100.00%
Area of land acquired | a	6.4
Onera Joint Venture | Maximum
Class of Stock [Line Items]
Additional contingent consideration | $	$ 1.8
Summit Hotel Operating Partnership | Non-controlling Interests
Class of Stock [Line Items]
Limited partner, ownership percentage					13.00%	13.00%
Joint Venture with GIC | Joint Venture with GIC
Class of Stock [Line Items]
General partner, ownership interest					51.00%
Series Z Preferred Units
Class of Stock [Line Items]
Preferred stock, dividend rate					5.25%	5.25%
Preferred stock, liquidation preference (in dollars per share) | $ / shares		$ 25,000
Preferred stock, redemption term, period		90 days
Hotels
Class of Stock [Line Items]
Number of hotel properties					3,709			103
Number of guestrooms | room					15,334
Hotels | Brickell Joint Venture
Class of Stock [Line Items]
Number of hotel properties | hotel								2
Hotels | Hotels Owned Through Joint Venture | Partially Owned Properties
Class of Stock [Line Items]
General partner, ownership interest					51.00%
Number of hotel properties | room					39
AC/Element Hotel | Brickell Joint Venture
Class of Stock [Line Items]
Initial purchase option, ownership percentage											90.00%
Operating partnership | Hotels | Portfolio Purchase Through Contribution And Purchase Agreement | Operating Partnership Units
Class of Stock [Line Items]
Number of shares issued in asset acquisition (in shares) | shares				15,864,674
Operating partnership | Hotels | Portfolio Purchase Through Contribution And Purchase Agreement | Series Z Preferred Units
Class of Stock [Line Items]
Number of shares issued in asset acquisition (in shares) | shares		2,000,000
Temporary equity, shares issued (in shares) | shares									2,000,000
GIC | Joint Venture with GIC | Joint Venture with GIC
Class of Stock [Line Items]
Limited partner, ownership percentage					49.00%
Joint Venture with GIC | Hotels | Joint Venture with GIC
Class of Stock [Line Items]
Number of guestrooms | room					5,414
Number of states in which hotel properties are located | state							9
Brickell Joint Venture | Brickell Joint Venture
Class of Stock [Line Items]
Initial purchase option, ownership percentage											10.00%
Unaffiliated Third Parties | Summit Hotel Operating Partnership
Class of Stock [Line Items]
Limited partner capital account units conversion ratio					1
Number of common units owned (in shares) | shares						15,976,807			15,976,807