CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 36,590	$ 101,825	$ 116,105
Other comprehensive income:
Foreign currency translation, net	(3,363)	421	314
Reclassification adjustment for foreign currency translation included in net income	0	0	(1,160)
Change in fair value of interest-rate contracts	0	0	(10)
Change in cash flow hedges reclassed to earnings	1,172	469	469
Total other comprehensive (loss) income	(2,191)	890	(387)
Comprehensive income	34,399	102,715	115,718
Total comprehensive income attributable to non-controlling interests	(869)	(1,126)	(1,559)
Total comprehensive income attributable to SITE Centers	$ 33,530	$ 101,589	$ 114,159