Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 17,624	$ 16,298
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	52,567	42,986
Amortization of deferred financing costs and mortgage premiums, net	119	(311)
Straight-line rent adjustment	(3,847)	(2,516)
Amortization of above and below market rent	(7,346)	(5,262)
Amortization relating to stock based compensation	3,490	2,689
Provisions for tenant credit losses	1,574	1,463
Other noncash interest expense	1,604	1,308
Gain on sale of real estate		(4,869)
Settlement of interest rate swap agreements		(3,230)
Restricted cash	205	(287)
Tenant and other receivables	(1,337)	(4,482)
Prepaid expenses	1,857	804
Accounts payable and accrued expenses	10,369	3,761
Other asset and liabilities, net	(2,284)	4,090
Net cash provided by operating activities	74,595	52,442
CASH FLOWS FROM INVESTING ACTIVITIES
Investments in real estate	(235,786)	(322,684)
Proceeds from sale of real estate		27,622
Increase in restricted cash		(12,048)
Improvements to properties	(19,278)	(15,666)
Deposits on real estate acquisitions	3,500	(4,225)
Construction escrows and other	23	207
Net cash used in investing activities	(251,541)	(326,794)
CASH FLOWS FROM FINANCING ACTIVITIES
Principal repayment on mortgages	(65,156)	(9,528)
Proceeds from mortgage loan	35,500
Proceeds from term loan	300,000
Proceeds from the draw on term loan/credit facility	306,000	318,300
Payments on credit facility	(446,275)	(251,950)
Proceeds from exercise of warrants		56,002
Distributions to OP Unitholders	(1,950)	(1,503)
Deferred financing and other costs	(1,766)	(66)
Proceeds from the issuance of common stock	101,293	214,907
Registration expenditures	(4,286)	(9,462)
Dividends paid	(48,918)	(38,685)
Repurchase of common stock	(1,316)	(587)
Net cash provided by financing activities	173,126	277,428
Net (decrease) increase in cash and cash equivalents	(3,820)	3,076
Cash and cash equivalents at beginning of period	10,773	7,920
Cash and cash equivalents at end of period	6,953	10,996
Other non-cash investing and financing activities – increase (decrease):
Intangible lease liabilities	15,609	35,426
Interest rate swap asset		(1,169)
Interest rate swap liabilities		(2,529)
Proceeds receivable from exercise of warrants		(173)
Accrued real estate improvement costs	503	3,434
OP Unit redemption	2,731
Retail Opportunity Investments Partnership L.P. [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	17,624	16,298
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	52,567	42,986
Amortization of deferred financing costs and mortgage premiums, net	119	(311)
Straight-line rent adjustment	(3,847)	(2,516)
Amortization of above and below market rent	(7,346)	(5,262)
Amortization relating to stock based compensation	3,490	2,689
Provisions for tenant credit losses	1,574	1,463
Other noncash interest expense	1,604	1,308
Gain on sale of real estate		(4,869)
Settlement of interest rate swap agreements		(3,230)
Restricted cash	205	(287)
Tenant and other receivables	(1,337)	(4,482)
Prepaid expenses	1,857	804
Accounts payable and accrued expenses	10,369	3,761
Other asset and liabilities, net	(2,284)	4,090
Net cash provided by operating activities	74,595	52,442
CASH FLOWS FROM INVESTING ACTIVITIES
Investments in real estate	(235,786)	(322,684)
Proceeds from sale of real estate		27,622
Increase in restricted cash		(12,048)
Improvements to properties	(19,278)	(15,666)
Deposits on real estate acquisitions	3,500	(4,225)
Construction escrows and other	23	207
Net cash used in investing activities	(251,541)	(326,794)
CASH FLOWS FROM FINANCING ACTIVITIES
Principal repayment on mortgages	(65,156)	(9,528)
Proceeds from mortgage loan	35,500
Proceeds from term loan	300,000
Proceeds from the draw on term loan/credit facility	306,000	318,300
Payments on credit facility	(446,275)	(251,950)
Proceeds from exercise of warrants		56,002
Deferred financing and other costs	(1,766)	(66)
Proceeds from the issuance of common stock	101,293	214,907
Registration expenditures	(4,286)	(9,462)
Dividends paid	(50,868)	(40,188)
Repurchase of common stock	(1,316)	(587)
Net cash provided by financing activities	173,126	277,428
Net (decrease) increase in cash and cash equivalents	(3,820)	3,076
Cash and cash equivalents at beginning of period	10,773	7,920
Cash and cash equivalents at end of period	6,953	10,996
Other non-cash investing and financing activities – increase (decrease):
Intangible lease liabilities	15,609	35,426
Interest rate swap asset		(1,169)
Interest rate swap liabilities		(2,529)
Proceeds receivable from exercise of warrants		(173)
Accrued real estate improvement costs	$ 503	$ 3,434