Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Officer	Common Stock	Additional paid-in capital	Accumulated dividends in excess of earnings	Accumulated dividends in excess of earnings Officer	Accumulated other comprehensive (loss) income	Non- controlling interests	Non- controlling interests Officer
Balance at Dec. 31, 2020	$ 1,291,159		$ 12	$ 1,497,662	$ (289,309)		$ (8,812)	$ 91,606
Balance (in shares) at Dec. 31, 2020			118,085,155
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued under the Equity Incentive Plan (in shares)			535,819
Shares issued under the Equity Incentive Plan	428			428
Shares withheld for employee taxes (in shares)			(142,247)
Shares withheld for employee taxes	(1,905)			(1,905)
Cancellation of restricted stock (in shares)			(5,482)
Stock based compensation expense	11,030			9,735				1,295
Redemption of OP Units (in shares)			423,986
Redemption of OP Units	6,858			6,858				(6,858)
Adjustment to non-controlling interests ownership in Operating Partnership				(3,625)				3,625
Proceeds from the issuance of common stock (in shares)			3,788,035
Proceeds from the issuance of common stock	69,602		$ 0	69,602
Registration expenditures	(918)			(918)
Cash dividends	(66,112)	$ (401)			(61,717)	$ (283)		(4,395)	$ (118)
Net income attributable to Retail Opportunity Investments Corp.	53,508				53,508
Net income attributable to non-controlling interests	3,852							3,852
Other comprehensive income (loss)	6,110						5,658	452
Balance (in shares) at Dec. 31, 2021			122,685,266
Balance at Dec. 31, 2021	1,366,353		$ 12	1,577,837	(297,801)		(3,154)	89,459
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued under the Equity Incentive Plan (in shares)			406,106
Shares issued under the Equity Incentive Plan	302			302
Shares withheld for employee taxes (in shares)			(123,466)
Shares withheld for employee taxes	(2,416)			(2,416)
Cancellation of restricted stock (in shares)			(14,148)
Stock based compensation expense	11,949			11,949				0
Redemption of OP Units (in shares)			296,840
Redemption of OP Units	5,071			5,071				(5,071)
Adjustment to non-controlling interests ownership in Operating Partnership	0			(5,017)				5,017
Proceeds from the issuance of common stock (in shares)			1,288,213
Proceeds from the issuance of common stock	25,199		$ 0	25,199
Registration expenditures	(799)			(799)
Cash dividends	(74,321)	(519)			(69,533)	(519)		(4,788)	0
Net income attributable to Retail Opportunity Investments Corp.	51,869				51,869
Net income attributable to non-controlling interests	3,591							3,591
Other comprehensive income (loss)	$ 3,390						3,168	222
Balance (in shares) at Dec. 31, 2022	124,538,811		124,538,811
Balance at Dec. 31, 2022	$ 1,384,598		$ 12	1,612,126	(315,984)		14	88,430
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued under the Equity Incentive Plan (in shares)			700,691
Shares issued under the Equity Incentive Plan	32			32
Shares withheld for employee taxes (in shares)			(220,282)
Shares withheld for employee taxes	(3,291)			(3,291)
Cancellation of restricted stock (in shares)			(29,425)
Stock based compensation expense	$ 12,712			10,899				1,813
Redemption of OP Units (in shares)	1,010,000		1,010,000
Redemption of OP Units	$ 13,389		$ 1	13,388				(13,389)
Adjustment to non-controlling interests ownership in Operating Partnership	0			(1,680)				1,680
Proceeds from the issuance of common stock (in shares)			904,290
Proceeds from the issuance of common stock	12,828		$ 0	12,828
Registration expenditures	(394)			(394)
Cash dividends	(80,064)	$ (445)			(75,450)	$ (260)		(4,614)	$ (185)
Net income attributable to Retail Opportunity Investments Corp.	34,534				34,534
Net income attributable to non-controlling interests	2,120							2,120
Other comprehensive income (loss)	$ 577						545	32
Balance (in shares) at Dec. 31, 2023	126,904,085		126,904,085
Balance at Dec. 31, 2023	$ 1,363,207		$ 13	$ 1,643,908	$ (357,160)		$ 559	$ 75,887