Consolidated Balance Sheets (USD $)	Dec. 31, 2014		Dec. 31, 2013
ASSETS
Land	$ 550,078,150		$ 458,252,028
Building and improvements	1,235,820,156		914,181,620
Total real estate investments	1,785,898,306	[1]	1,372,433,648
Less: accumulated depreciation	88,173,334		57,499,980
Real Estate Investments, net	1,697,724,972		1,314,933,668
Cash and cash equivalents	10,773,406		7,919,697
Restricted cash	513,918		1,298,666
Tenant and other receivables	23,024,678		20,389,068
Deposits	4,500,100		775,000
Acquired lease intangible asset, net of accumulated amortization	71,432,664		55,887,471
Prepaid expenses	2,454,341		1,371,296
Deferred charges, net of accumulated amortization	39,730,973		33,121,980
Other	1,541,333		3,392,997
Total assets	1,851,696,385		1,439,089,843
Liabilities:
Term loan			200,000,000
Credit facility	156,500,000		56,950,000
Mortgage notes payable	94,183,258		118,903,258
Acquired lease intangibles liability, net of accumulated amortization	118,358,661		85,283,882
Accounts payable and accrued expenses	12,173,382		11,923,998
Tenants' security deposits	3,960,699		3,422,910
Other liabilities	11,043,126		11,350,409
Total liabilities	888,914,167		733,679,777
Commitments and contingencies
Equity:
Preferred stock, $.0001 par value 50,000,000 shares authorized; none issued and outstanding	0		0
Common stock, $.0001 par value 500,000,000 shares authorized; and 92,991,333 and 72,445,767 shares issued and outstanding at December 31, 2014 and 2013, respectively	9,293		7,238
Additional paid-in-capital	1,013,561,443		732,701,858
Dividends in excess of earnings	(80,975,650)		(47,616,570)
Accumulated other comprehensive loss	(8,882,417)		(8,969,137)
Total Retail Opportunity Investments Corp. stockholders' equity	923,712,669		676,123,389
Non-controlling interests	39,069,549		29,286,677
Total equity	962,782,218		705,410,066
Total liabilities and equity	1,851,696,385		1,439,089,843
Senior Notes 2023 [Member] | Retail Opportunity Investments Partnership L.P. [Member]
Liabilities:
Senior Notes	246,173,927		245,845,320
Senior Notes 2023 [Member]
Liabilities:
Senior Notes	246,173,927		245,845,320
Senior Notes 2024 [Member] | Retail Opportunity Investments Partnership L.P. [Member]
Liabilities:
Senior Notes	246,521,114
Senior Notes 2024 [Member]
Liabilities:
Senior Notes	246,521,114
Retail Opportunity Investments Partnership L.P. [Member]
ASSETS
Land	550,078,150		458,252,028
Building and improvements	1,235,820,156		914,181,620
Total real estate investments	1,785,898,306		1,372,433,648
Less: accumulated depreciation	88,173,334		57,499,980
Real Estate Investments, net	1,697,724,972		1,314,933,668
Cash and cash equivalents	10,773,406		7,919,697
Restricted cash	513,918		1,298,666
Tenant and other receivables	23,024,678		20,389,068
Deposits	4,500,100		775,000
Acquired lease intangible asset, net of accumulated amortization	71,432,664		55,887,471
Prepaid expenses	2,454,341		1,371,296
Deferred charges, net of accumulated amortization	39,730,973		33,121,980
Other	1,541,333		3,392,997
Total assets	1,851,696,385		1,439,089,843
Liabilities:
Term loan			200,000,000
Credit facility	156,500,000		56,950,000
Mortgage notes payable	94,183,258		118,903,258
Acquired lease intangibles liability, net of accumulated amortization	118,358,661		85,283,882
Accounts payable and accrued expenses	12,173,382		11,923,998
Tenants' security deposits	3,960,699		3,422,910
Other liabilities	11,043,126		11,350,409
Total liabilities	888,914,167		733,679,777
Equity:
ROIC capital (consists of general and limited partnership interests held by ROIC)	932,595,086		685,092,526
Limited partners’ capital (consists of limited partnership interests held by third parties)	39,069,549		29,286,677
Accumulated other comprehensive loss	(8,882,417)		(8,969,137)
Total equity	962,782,218		705,410,066
Total liabilities and equity	$ 1,851,696,385		$ 1,439,089,843

[1] RECONCILIATION OF REAL ESTATE - OWNED SUBJECT TO OPERATING LEASESYear Ended December 31,2014 2013 2012Balance at beginning of period: $ 1,372,433,648 $ 871,693,595 $ 580,832,410Property improvements during the year 27,514,974 19,513,924 12,264,027Properties acquired during the year 416,297,696 487,309,488 278,597,158Properties sold during the year (23,675,678) (6,083,359) -Assets written off during the year (6,672,334) - -Balance at end of period: $ 1,785,898,306 $ 1,372,433,648 $ 871,693,595