| Schedule of intangible assets on real estate acquisitions |
Intangible assets on real estate acquisitions consisted of the following (in thousands): | | | | | | | | | | | | | | | | | | | | | | | | | | | | March 31, 2015 | | December 31, 2014 | | | Gross Carrying Amount | | Accumulated Amortization | | Net Carrying Amount | | Gross Carrying Amount | | Accumulated Amortization | | Net Carrying Amount | In-place lease value | | $ | 133,395 |
| | $ | 102,019 |
| | $ | 31,376 |
| | $ | 123,759 |
| | $ | 101,040 |
| | $ | 22,719 |
| Tenant relationship value | | 49,552 |
| | 29,265 |
| | 20,287 |
| | 42,301 |
| | 28,492 |
| | 13,809 |
| Below-market cost arrangements | | 12,415 |
| | 6,154 |
| | 6,261 |
| | 12,415 |
| | 5,984 |
| | 6,431 |
| Above-market leases | | 11,372 |
| | 8,211 |
| | 3,161 |
| | 8,659 |
| | 8,159 |
| | 500 |
| Market concentration premium | | 1,333 |
| | 941 |
| | 392 |
| | 1,333 |
| | 938 |
| | 395 |
| | | $ | 208,067 |
| | $ | 146,590 |
| | $ | 61,477 |
| | $ | 188,467 |
| | $ | 144,613 |
| | $ | 43,854 |
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