	April 30, 2011		January 29, 2011
Property and equipment, at cost	$	2,519,757	$	2,451,414
Accumulated depreciation and amortization		(1,357,852)		(1,306,474)

Property and equipment, net	$	1,161,905	$	1,144,940

Long-lived assets, primarily comprised of property and equipment, are reviewed periodically for impairment or whenever events or changes in circumstances indicate that full recoverability of net asset balances through future cash flows is in question. Factors used in the evaluation include, but are not limited to, management's plans for future operations, recent operating results, and projected cash flows.

Store-related assets are considered level 3 assets in the fair value hierarchy and the fair values were determined at the store level, primarily using a discounted cash flow model. The estimation of future cash flows from operating activities requires significant estimates of factors that include future sales, gross margin performance and operating expenses. In instances where the discounted cash flow analysis indicated a negative value at the store level, the market exit price based on historical experience was used to determine the fair value by asset type. The Company had previously impaired store-related assets measured at fair value of $13.3 million and $14.6 million on the Consolidated Balance Sheets at April 30, 2011 and January 29, 2011, respectively.