Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 99,521	$ 108,261	$ 125,256
Other comprehensive income, net of tax:
Changes in fair value of derivative financial instruments	2,437	693	81
Comprehensive income	101,958	108,954	125,337
Less - Comprehensive income attributable to non-controlling interests:
Operating partnership	(316)	(460)	(820)
Comprehensive income attributable to Summit Hotel Properties, Inc.	101,642	108,494	124,517
Preferred dividends	(17,408)	(18,232)	(16,588)
Premium on redemption of preferred stock	(2,572)	(2,125)	0
Comprehensive income attributable to common stockholders	$ 81,662	$ 88,137	$ 107,929