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Property and Depreciation (Tables)
12 Months Ended
Dec. 31, 2014
Property, Plant and Equipment [Abstract]  
Schedule of Property and Depreciation

We provide for depreciation and amortization using the straight-line method over the following estimated useful asset lives:
Classification
Estimated Useful Asset Life
Buildings
42 years
Leasehold improvements
Over the shorter of the asset’s life or the lease term
Furniture, fixtures, equipment and software
3 to 14 years
Assets held under capital leases
Over the shorter of the asset’s life or the lease term