Deferred Costs and Other Assets Deferred costs and other assets include the following as of December 31: 2011 2010 Deferred financing and lease costs, net  $ 308,380 $ 298,674 In-place lease intangibles, net  200,098 150,199 Acquired above market lease intangibles, net  75,950 12,466 Marketable securities of our captive insurance companies  100,721 90,963 Goodwill 20,098 20,098 Other marketable securities  316,307 420,356 Loans held for investment  162,832 395,934 Prepaids, notes receivable and other assets, net  449,158 406,749 $1,633,544 $1,795,439 Deferred Financing and Lease Costs Our deferred costs consist primarily of financing fees we incurred in order to obtain long-term financing and internal and  external leasing commissions and related costs. We record amortization of deferred financing costs on a straight-line basis over  the terms of the respective loans or agreements. Our deferred leasing costs consist primarily of capitalized salaries and related  benefits in connection with lease originations. We record amortization of deferred leasing costs on a straight-line basis over the  terms of the related leases. Details of these deferred costs as of December 31 are as follows: We report amortization of deferred financing costs, amortization of premiums, and accretion of discounts as part of interest  expense. Amortization of deferred leasing costs is a component of depreciation and amortization expense. We amortize debt  premiums and discounts, which are included in mortgages and other indebtedness, over the remaining terms of the related debt  instruments. These debt premiums or discounts arise either at the debt issuance or as part of the purchase price allocation of the  fair value of debt assumed in acquisitions. The accompanying consolidated statements of operations and comprehensive income  include amortization as follows: From time to time, we may make investments in mortgage loans or mezzanine loans of third parties that own and operate  commercial real estate assets located in the United States. Mortgage loans are secured, in part, by mortgages recorded against  the underlying properties which are not owned by us. Mezzanine loans are secured, in part, by pledges of ownership interests of  the entities that own the underlying real estate. Loans held for investment are carried at cost, net of any premiums or discounts  which are accreted or amortized over the life of the related loan receivable utilizing the effective interest method. We evaluate the  collectability of both interest and principal of each of these loans quarterly to determine whether the value has been impaired. A  loan is deemed to be impaired when, based on current information and events, it is probable that we will be unable to collect all  amounts due according to the existing contractual terms. When a loan is impaired, the amount of the loss accrual is calculated by  comparing the carrying amount of the loan held for investment to its estimated realizable value. Loans Held for Investment 2011 2010 Deferred financing and lease costs  $ 528,273  $ 461,315 Accumulated amortization  (219,893) (162,641) Deferred financing and lease costs, net  $ 308,380  $ 298,674 For the Year Ended December 31, 2011 2010 2009 Amortization of deferred financing costs  $ 28,697 $ 27,806 $ 20,408 Amortization of debt premiums, net of discounts  (8,439) (9,066)  (10,627) Amortization of deferred leasing costs  43,110 34,801 32,744 2011 Annual Report 41