Depreciation of owned properties is provided primarily on a straight-line basis over the estimated asset lives, which range from fifteen to fifty years for buildings and building equipment and three to fifteen years for fixtures and equipment. Real estate taxes and interest on construction in progress and land under development are capitalized. Amounts capitalized are amortized over the estimated lives of the related depreciable assets. The Company receives contributions from developers and merchandise vendors to fund building improvement and the construction of vendor shops. Such contributions are netted against the capital expenditures.
Buildings on leased land and leasehold improvements are amortized over the shorter of their economic lives or the lease term, beginning on the date the asset is put into use.