Consolidated Statements of Operations and Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues
Rental revenue	$ 319,056	$ 308,960	$ 280,924
Other income	8,676	3,969	3,176
Total revenues	327,732	312,929	284,100
Operating expenses
Property operating	55,166	51,057	44,439
Property taxes	35,433	34,651	33,663
Depreciation and amortization	104,227	97,494	92,929
General and administrative expenses	21,854	21,735	19,654
Other expense	1,209	960	860
Total operating expenses	217,889	205,897	191,545
Gain on sale of real estate	0	7,653	22,340
Operating income	109,843	114,685	114,895
Non-operating expenses
Interest expense and other finance expenses	(73,189)	(59,225)	(57,535)
Net income	36,654	55,460	57,360
Net income attributable to non-controlling interests	(2,120)	(3,591)	(3,852)
Net Income Attributable to Retail Opportunity Investments Corp.	$ 34,534	$ 51,869	$ 53,508
Earnings per share/unit - basic (in dollars per share)	$ 0.27	$ 0.42	$ 0.44
Earnings per share/unit - diluted (in dollars per share)	0.27	0.42	0.44
Dividends per share (in dollars per share)	$ 0.60	$ 0.56	$ 0.51
Comprehensive income:
Net income	$ 36,654	$ 55,460	$ 57,360
Other comprehensive income:
Unrealized swap derivative gain arising during the period	1,582	1,104	216
Reclassification adjustment for amortization to interest expense included in net income	(1,005)	2,286	5,894
Other comprehensive income (loss)	577	3,390	6,110
Comprehensive income	37,231	58,850	63,470
Comprehensive income attributable to non-controlling interests	(2,152)	(3,813)	(4,304)
Comprehensive income attributable to Retail Opportunity Investments Corp.	35,079	55,037	59,166
Retail Opportunity Investments Partnership L.P.
Revenues
Rental revenue	319,056	308,960	280,924
Other income	8,676	3,969	3,176
Total revenues	327,732	312,929	284,100
Operating expenses
Property operating	55,166	51,057	44,439
Property taxes	35,433	34,651	33,663
Depreciation and amortization	104,227	97,494	92,929
General and administrative expenses	21,854	21,735	19,654
Other expense	1,209	960	860
Total operating expenses	217,889	205,897	191,545
Gain on sale of real estate	0	7,653	22,340
Operating income	109,843	114,685	114,895
Non-operating expenses
Interest expense and other finance expenses	(73,189)	(59,225)	(57,535)
Net income	$ 36,654	$ 55,460	$ 57,360
Earnings per share/unit - basic (in dollars per share)	$ 0.27	$ 0.42	$ 0.44
Earnings per share/unit - diluted (in dollars per share)	0.27	0.42	0.44
Dividends per share (in dollars per share)	$ 0.60	$ 0.56	$ 0.51
Comprehensive income:
Net income	$ 36,654	$ 55,460	$ 57,360
Other comprehensive income:
Unrealized swap derivative gain arising during the period	1,582	1,104	216
Reclassification adjustment for amortization to interest expense included in net income	(1,005)	2,286	5,894
Other comprehensive income (loss)	577	3,390	6,110
Comprehensive income	$ 37,231	$ 58,850	$ 63,470