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Deferred Costs, Acquired Lease Intangibles and Goodwill | 3 Months Ended
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Mar. 31, 2015
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |
Deferred Costs, Acquired Lease Intangibles and Goodwill | Deferred Costs, Acquired Lease Intangibles and Goodwill Deferred costs, net consisted of the following (amounts in thousands):
| March 31, 2015 |  | December 31, 2014
| Gross Amount |  | Accumulated Amortization |  | Gross Amount |  | Accumulated Amortization
Leasing costs | $ | 112,986 |  |  | $ | (31,487 | ) |  | $ | 100,653 |  |  | $ | (33,439 | )
Financing costs | 18,824 |  |  | (4,772 | ) |  | 17,334 |  |  | (4,336 | )
Total deferred costs | $ | 131,810 |  |  | $ | (36,259 | ) |  | $ | 117,987 |  |  | $ | (37,775 | )
Amortization expense related to deferred leasing costs was $2.9 million and $2.4 million for the three months ended March 31, 2015 and 2014, respectively, and amortization expense related to deferred financing costs was $2.4 million and $1.1 million for the three months ended March 31, 2015 and 2014, respectively. Amortizing acquired intangible assets and liabilities consisted of the following (amounts in thousands):
| March 31, 2015 |  | December 31, 2014
| Gross Amount |  | Accumulated Amortization |  | Gross Amount |  | Accumulated Amortization
Acquired below-market ground leases | $ | 396,916 |  |  | $ | (7,151 | ) |  | $ | 396,916 |  |  | $ | (5,029 | )
Acquired in-place lease value and deferred leasing costs | 300,725 |  |  | (92,680 | ) |  | 304,916 |  |  | (83,540 | )
Acquired above-market leases | 84,213 |  |  | (19,172 | ) |  | 84,633 |  |  | (15,761 | )
Acquired below-market leases | (168,372 | ) |  | 38,636 |  |  | (169,805 | ) |  | 30,946 |
Amortization expense related to acquired lease intangibles was $10.3 million and $5.2 million for the three months ended March 31, 2015 and 2014, respectively. Rental revenue related to the amortization of below-market leases, net of above-market leases, was $5.3 million and $1.9 million for the three months ended March 31, 2015 and 2014, respectively. As of March 31, 2015, we had goodwill of $491.5 million. Goodwill was allocated $227.5 million to the observatory reportable segment and $264.0 million to the real estate segment.

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- Definition The entire disclosure for other assets. This disclosure includes other current assets and other noncurrent assets. + References No definition available. + Details
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