Consolidated Statement of Partners' Capital - USD ($) $ in Thousands		Total	Retail Opportunity Investments Partnership L.P.	Retail Opportunity Investments Partnership L.P. Officer	Retail Opportunity Investments Partnership L.P. Limited Partner’s Capital		Retail Opportunity Investments Partnership L.P. Limited Partner’s Capital Officer	[1]	Retail Opportunity Investments Partnership L.P. ROIC Capital		Retail Opportunity Investments Partnership L.P. ROIC Capital Officer	[2]	Retail Opportunity Investments Partnership L.P. Accumulated other comprehensive (loss) income
Total (in shares)					8,966,083	[1]			118,085,155	[2]
Balance (in shares) at Dec. 31, 2020					8,966,083	[1]			118,085,155	[2]
Balance at Dec. 31, 2020			$ 1,291,159		$ 92,279	[1]			$ 1,208,365	[2]			$ (9,485)
OP Units issued under the Equity Incentive Plan (in shares)	[2]								535,819
OP Units issued under the Equity Incentive Plan		$ 428	428						$ 428	[2]
OP Units withheld for employee taxes (in shares)	[2]								(142,247)
OP Units withheld for employee taxes		(1,905)	(1,905)						$ (1,905)	[2]
Cancellation of OP Units (in shares)	[2]								(5,482)
Stock based compensation expense		11,030	11,030		$ 1,295	[1]			$ 9,735	[2]
Equity Redemption of OP Units (in shares)					(423,986)	[1]			423,986	[2]
Equity Redemption of OP Units					$ (6,858)	[1]			$ 6,858	[2]
Adjustment to non-controlling interests ownership in Operating Partnership			0		3,625	[1]			$ (3,625)	[2]
Issuance of OP Units in connection with sale of common stock (in shares)	[2]								3,788,035
Issuance of OP Units in connection with sale of common stock		69,602	69,602						$ 69,602	[2]
Registration expenditures		(918)	(918)						(918)	[2]
Cash distributions			(66,112)	$ (401)	(4,395)	[1]	$ (118)		(61,717)	[2]	$ (283)
Net income		57,360	57,360		$ 3,852	[1]			$ 53,508	[2]
Other comprehensive income (loss)		6,110	6,110										6,110
Balance (in shares) at Dec. 31, 2021					8,542,097	[1]			122,685,266	[2]
Balance at Dec. 31, 2021			1,366,353		$ 89,680	[1]			$ 1,280,048	[2]			(3,375)
Total (in shares)					8,542,097	[1]			122,685,266	[2]
OP Units issued under the Equity Incentive Plan (in shares)					201,860				406,106	[2]
OP Units issued under the Equity Incentive Plan		302	302						$ 302	[2]
OP Units withheld for employee taxes (in shares)	[2]								(123,466)
OP Units withheld for employee taxes		(2,416)	(2,416)						$ (2,416)	[2]
Cancellation of OP Units (in shares)	[2]								(14,148)
Stock based compensation expense		11,949	11,949		$ 0	[1]			$ 11,949	[2]
Equity Redemption of OP Units (in shares)					(296,840)	[1]			296,840	[2]
Equity Redemption of OP Units					$ (5,071)	[1]			$ 5,071	[2]
Adjustment to non-controlling interests ownership in Operating Partnership		0	0		5,017	[1]			$ (5,017)	[2]
Issuance of OP Units in connection with sale of common stock (in shares)	[2]								1,288,213
Issuance of OP Units in connection with sale of common stock		25,199	25,199						$ 25,199	[2]
Registration expenditures		(799)	(799)						(799)	[2]
Cash distributions			(74,321)	(519)	(4,788)	[1]	0		(69,533)	[2]	(519)
Net income		55,460	55,460		$ 3,591	[1]			$ 51,869	[2]
Other comprehensive income (loss)		3,390	3,390										3,390
Balance (in shares) at Dec. 31, 2022					8,447,117	[1]			124,538,811	[2]
Balance at Dec. 31, 2022			1,384,598		$ 88,429	[1]			$ 1,296,154	[2]			15
Total (in shares)					8,447,117	[1]			124,538,811	[2]
OP Units issued under the Equity Incentive Plan (in shares)	[2]								700,691
OP Units issued under the Equity Incentive Plan		32	32						$ 32	[2]
OP Units withheld for employee taxes (in shares)	[2]								(220,282)
OP Units withheld for employee taxes		(3,291)	(3,291)						$ (3,291)	[2]
Cancellation of OP Units (in shares)	[2]								(29,425)
Stock based compensation expense		$ 12,712	12,712		$ 1,813	[1]			$ 10,899	[2]
Equity Redemption of OP Units (in shares)		1,010,000			(1,010,000)	[1]			1,010,000	[2]
Equity Redemption of OP Units					$ (13,389)	[1]			$ 13,389	[2]
Adjustment to non-controlling interests ownership in Operating Partnership		$ 0	0		1,680	[1]			$ (1,680)	[2]
Issuance of OP Units in connection with sale of common stock (in shares)	[2]								904,290
Issuance of OP Units in connection with sale of common stock		12,828	12,828						$ 12,828	[2]
Registration expenditures		(394)	(394)						(394)	[2]
Cash distributions			(80,064)	$ (445)	(4,614)	[1]	$ (185)		(75,450)	[2]	$ (260)
Net income		36,654	36,654		$ 2,120	[1]			$ 34,534	[2]
Other comprehensive income (loss)		$ 577	577										577
Balance (in shares) at Dec. 31, 2023		134,341,202			7,437,117	[1]			126,904,085	[2]
Balance at Dec. 31, 2023			$ 1,363,207		$ 75,854	[1]			$ 1,286,761	[2]			$ 592
Total (in shares)		134,341,202			7,437,117	[1]			126,904,085	[2]

[1] Consists of limited partnership interests held by third parties.

[2] Consists of general and limited partnership interests held by ROIC.