Consolidated Statements of Partners' Capital (Unaudited) (USD $)
In Thousands, except Share data
Limited Partner’s Capital [Member]
Retail Opportunity Investments Partnership L.P. [Member]
ROIC Capital [Member]
Officer [Member]
Retail Opportunity Investments Partnership L.P. [Member]
ROIC Capital [Member]
Retail Opportunity Investments Partnership L.P. [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Retail Opportunity Investments Partnership L.P. [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Officer [Member]
Retail Opportunity Investments Partnership L.P. [Member]
Officer [Member]
Retail Opportunity Investments Partnership L.P. [Member]
Total
Balance at Dec. 31, 2014 $ 39,070 [1]   $ 932,594 [2] $ (8,882)       $ 962,782  
Balance (in Shares) at Dec. 31, 2014 3,921,314 [1]   92,991,333 [2]            
OP units issued under the 2009 Plan (in Shares) [2]     360,627            
Repurchase of OP Units     (1,307) [2]         (1,307) (1,307)
Repurchase of OP Units (in Shares)     (77,964) [2]           0
Cancellation of OP Units (in Shares) [2]     (1,332)            
Stock based compensation expense     882 [2]         882 882
Adjustment to non-controlling interests ownership in Operating Partnership 107 [1]   (107) [2]            
Issuance of OP Units in connection with sale of common stock     9,936 [2]         9,936 (9,936)
Issuance of OP Units in connection with sale of common stock (in Shares) [2]     544,567            
Registration expenditures     (171) [2]         (171) (171)
Cash distributions ($0.17 per unit) (666) [1]   (15,903) [2]         (16,569)  
Dividends payable to officers   (40) [2]       (40) (40)   (16,569)
Net income attributable to Retail Opportunity Investments Partnership, LP 176 [1]   4,200 [2]         4,376 4,376
Other comprehensive income       534 534     534 534
Balance at Mar. 31, 2015 $ 38,687 [1]   $ 930,084 [2] $ (8,348)       $ 960,423  
Balance (in Shares) at Mar. 31, 2015 3,921,314 [1]   93,817,231 [2]            
[1] Consists of limited partnership interests held by third parties.
[2] Consists of general and limited partnership interests held by ROIC.