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Intangible Assets (Tables) | 9 Months Ended
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Sep. 30, 2012
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible assets |
| September 30, 2012
| Total Cost |  | Accumulated Amortization |  | Intangible Assets, net
In-place lease value | $ | 72,099 |  |  | $ | (45,704 | ) |  | $ | 26,395 |
Tenant relationship value | 58,811 |  |  | (38,716 | ) |  | 20,095 |
Above market leases acquired | 7,840 |  |  | (1,755 | ) |  | 6,085 |
Total | $ | 138,750 |  |  | $ | (86,175 | ) |  | $ | 52,575 |
Below market leases acquired | $ | 73,342 |  |  | $ | (43,518 | ) |  | $ | 29,824 |
| December 31, 2011
| Total Cost |  | Accumulated Amortization |  | Intangible Assets, net
In-place lease value | $ | 91,426 |  |  | $ | (55,498 | ) |  | $ | 35,928 |
Tenant relationship value | 72,813 |  |  | (45,114 | ) |  | 27,699 |
Above market leases acquired | 12,744 |  |  | (5,856 | ) |  | 6,888 |
Total | $ | 176,983 |  |  | $ | (106,468 | ) |  | $ | 70,515 |
Below market leases acquired | $ | 75,685 |  |  | $ | (40,579 | ) |  | $ | 35,106 |
Annual amortization of intangible assets and liabilities |
| Assets |  | Liabilities
2012 (three months remaining) | $ | 3,603 |  |  | $ | 1,642 |
2013 | 12,076 |  |  | 6,284 |
2014 | 9,299 |  |  | 4,741 |
2015 | 6,909 |  |  | 2,597 |
2016 | 4,436 |  |  | 1,704 |
Thereafter | 16,252 |  |  | 12,856 |
Total | $ | 52,575 |  |  | $ | 29,824 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16265-109275 + Details
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