Property and equipment is depreciated using the straight-line method over estimated useful lives or lease terms if shorter. We amortize leasehold improvements purchased after the beginning of the initial lease term over the shorter of the assets' useful lives or a term that includes the original lease term, plus any renewals that are reasonably assured at the date the leasehold improvements are acquired.
Long-lived assets are reviewed for impairment when events or changes in circumstances, such as a decision to relocate or close a store or make significant software changes, indicate that the asset's carrying value may not be recoverable.