Summary of Significant Accounting Policies (Policies)	12 Months Ended
Feb. 28, 2015
Basis of Presentation
Fiscal Year	Fiscal Year The Company's fiscal year ends on the Saturday closest to February 29 or March 1. The fiscal years ended February 28, 2015, March 1, 2014 and March 2, 2013 included 52 weeks.
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include the accounts of the Company and all of its 100 percent owned subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents consist of cash on hand and highly liquid investments, which are readily convertible to known amounts of cash and which have original maturities of three months or less when purchased.
Allowance for Uncollectible Receivables	Allowance for Uncollectible Receivables Approximately 97.5% of prescription sales are made to customers who are covered by third-party payors, such as insurance companies, government agencies and employers. The Company recognizes receivables that represent the amount owed to the Company for sales made to customers or employees of those payors that have not yet been paid. The Company maintains a reserve for the amount of these receivables deemed to be uncollectible. This reserve is calculated based upon historical collection activity adjusted for current conditions.
Inventories	Inventories Inventories are stated at the lower of cost or market. Inventory balances include the capitalization of certain costs related to purchasing, freight and handling costs associated with placing inventory in its location and condition for sale. The Company uses the last-in, first-out ("LIFO") cost flow assumption for substantially all of its inventories. The Company calculates its inflation index based on internal product mix and utilizes the link-chain LIFO method.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets Asset impairments are recorded when the carrying value of assets are not recoverable. For purposes of recognizing and measuring impairment of long- lived assets, the Company categorizes assets of operating stores as "Assets to Be Held and Used" and "Assets to Be Disposed Of." The Company evaluates assets at the store level because this is the lowest level of identifiable cash flows ascertainable to evaluate impairment. Assets being tested for recoverability at the store level include tangible long-lived assets and identifiable, finite-lived intangibles that arose in purchase business combinations. Corporate assets to be held and used are evaluated for impairment based on excess cash flows from the stores that support those assets. The Company reviews long-lived assets to be held and used for impairment annually or whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If the sum of the undiscounted expected future cash flows is less than the carrying amount of the asset, the Company recognizes an impairment loss. Impairment losses are measured as the amount by which the carrying amount of the asset exceeds the fair value of the asset. When fair values are not available, the Company estimates fair value using the expected future cash flows discounted at a rate commensurate with the risks associated with the recovery of the asset.
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment are stated at cost, net of accumulated depreciation and amortization. The Company provides for depreciation using the straight-line method over the following useful lives: buildings—30 to 45 years; equipment—3 to 15 years. Leasehold improvements are amortized on a straight-line basis over the shorter of the estimated useful life of the asset or the term of the lease. When determining the amortization period of a leasehold improvement, the Company considers whether discretionary exercise of a lease renewal option is reasonably assured. If it is determined that the exercise of such option is reasonably assured, the Company will amortize the leasehold improvement asset over the minimum lease term, plus the option period. This determination depends on the remaining life of the minimum lease term and any economic penalties that would be incurred if the lease option is not exercised. Capitalized lease assets are recorded at the lesser of the present value of minimum lease payments or fair market value and amortized over the estimated useful life of the related property or term of the lease. The Company capitalizes direct internal and external development costs associated with internal-use software. Neither preliminary evaluation costs nor costs associated with the software after implementation are capitalized. For fiscal years 2015, 2014 and 2013, the Company capitalized costs of approximately $7,550, $6,547 and $5,844, respectively.
Goodwill	Goodwill The Company recognizes goodwill as the excess of the purchase price over the fair value of the assets acquired and liabilities assumed during business combinations. The Company accounts for goodwill under ASC Topic 350, "Intangibles—Goodwill and Other", which does not permit amortization, but instead requires the Company to perform an annual impairment review, or more frequently if events or circumstances indicate that impairment may be more likely. See Note 11 for additional information on goodwill.
Intangible Assets	Intangible Assets The Company has certain finite-lived intangible assets that are amortized over their useful lives. The value of favorable and unfavorable leases on stores acquired in business combinations are amortized over the terms of the leases on a straight-line basis. Prescription files acquired in business combinations are amortized over an estimated useful life of ten years on an accelerated basis, which approximates the anticipated prescription file retention and related cash flows. Purchased prescription files acquired in other than business combinations are amortized over their estimated useful lives of five years on a straight-line basis.
Deferred Financing Costs	Deferred Financing Costs Costs incurred to issue debt are deferred and amortized as a component of interest expense over the terms of the related debt agreements. Amortization expense of deferred financing costs was $15,301, $15,259 and $21,896 for fiscal 2015, 2014 and 2013, respectively.
Revenue Recognition	Revenue Recognition For front end sales, the Company recognizes revenue from the sale of merchandise at the time the merchandise is sold. The Company records revenue net of an allowance for estimated future returns. Return activity is immaterial to revenues and results of operations in all periods presented. For third party payor pharmacy sales, revenue is recognized at the time the prescription is filled, which is or approximates when the customer picks up the prescription and is recorded net of an allowance for prescriptions that were filled but will not be picked up by the customer. For all periods presented, there is no material difference between the revenue recognized at the time the prescription is filled and that which would be recognized when the customer picks up the prescription. For cash prescriptions and patient third party payor co-payments, the Company recognizes revenue when the patient picks up the prescription and tenders the cash price or patient third party payor co-payment amount at the point of sale. Prescriptions are generally not returnable. The Company offers a chain wide loyalty card program titled wellness +. Members participating in the wellness + loyalty card program earn points on a calendar year basis for eligible front end merchandise purchases and qualifying prescriptions. One point is awarded for each dollar spent towards front end merchandise and 25 points are awarded for each qualifying prescription. Members reach specific wellness + tiers based on the points accumulated during the calendar year, which entitles such customers to certain future discounts and other benefits upon reaching that tier. For example, any customer that reaches 1,000 points in a calendar year achieves the "Gold" tier, enabling them to receive a 20% discount on qualifying purchases of front end merchandise for the remaining portion of the calendar year and also the next calendar year. There are also similar "Silver" and "Bronze" levels with lower thresholds and benefit levels. As wellness + customers accumulate points, the Company defers the value of the points earned as deferred revenue (included in other current and noncurrent liabilities, based on the expected usage). The amount deferred is based on historic and projected customer activity (e.g., tier level, spending level). As customers receive discounted front end merchandise, the Company recognizes an allocable portion of the deferred revenue. The Company deferred $111,208 as of February 28, 2015 of which $89,657 is included in other current liabilities and $21,551 is included in noncurrent liabilities. The Company deferred $103,562 as of March 1, 2014 of which $83,668 is included in other current liabilities and $19,894 is included in noncurrent liabilities.
Cost of Goods Sold	Cost of Goods Sold Cost of goods sold includes the following: the cost of inventory sold during the period, including related vendor rebates and allowances, LIFO credit or charges, costs incurred to return merchandise to vendors, inventory shrink, purchasing costs and warehousing costs, which include inbound freight costs from the vendor, distribution payroll and benefit costs, distribution center occupancy costs and depreciation expense and delivery expenses to the stores.
Vendor Rebates and Allowances	Vendor Rebates and Allowances Rebates and allowances received from vendors relate to either buying and merchandising or promoting the product. Buying and merchandising related rebates and allowances are recorded as a reduction of cost of goods sold as product is sold. Buying and merchandising rebates and allowances include all types of vendor programs such as cash discounts from timely payment of invoices, purchase discounts or rebates, volume purchase allowances, price reduction allowances and slotting allowances. Certain product promotion related rebates and allowances, primarily related to advertising, are recorded as a reduction in selling, general and administrative expenses when the advertising commitment has been satisfied.
Rent	Rent The Company records rent expense on operating leases on a straight-line basis over the minimum lease term. The Company begins to record rent expense at the time that the Company has the right to use the property. From time to time, the Company receives incentive payments from landlords that subsidize lease improvement construction. These leasehold incentives are deferred and recognized on a straight-line basis over the minimum lease term.
Selling, General and Administrative Expenses	Selling, General and Administrative Expenses Selling, general and administrative expenses include store and corporate administrative payroll and benefit costs, occupancy costs which include retail store and corporate rent costs, facility and leasehold improvement depreciation and utility costs, advertising, repair and maintenance, insurance, equipment depreciation and professional fees.
Repairs and Maintenance	Repairs and Maintenance Routine repairs and maintenance are charged to operations as incurred. Improvements and major repairs, which extend the useful life of an asset, are capitalized and depreciated.
Advertising	Advertising Advertising costs, net of specific vendor advertising allowances, are expensed in the period the advertisement first takes place. Advertising expenses, net of vendor advertising allowances, for fiscal 2015, 2014 and 2013 were $318,157, $322,843 and $335,779, respectively.
Insurance	Insurance The Company is self-insured for certain general liability and workers' compensation claims. For claims that are self-insured, stop-loss insurance coverage is maintained for workers' compensation occurrences exceeding $1,000 and general liability occurrences exceeding $2,000. The Company utilizes actuarial studies as the basis for developing reported claims and estimating claims incurred but not reported relating to the Company's self-insurance. Workers' compensation claims are discounted to present value using a risk- free interest rate.
Benefit Plan Accruals	Benefit Plan Accruals The Company has several defined benefit plans, under which participants earn a retirement benefit based upon a formula set forth in the plan. The Company records expense related to these plans using actuarially determined amounts that are calculated under the provisions of ASC 715, "Compensation—Retirement Benefits." Key assumptions used in the actuarial valuations include the discount rate, the expected rate of return on plan assets and the rate of increase in future compensation levels.
Stock-Based Compensation	Stock-Based Compensation The Company has several stock option plans, which are described in detail in Note 15. The Company accounts for stock-based compensation under ASC 718, "Compensation—Stock Compensation." The Company recognizes option expense over the requisite service period of the award, net of an estimate for the impact of award forfeitures.
Store Pre-opening Expenses	Store Pre-opening Expenses Costs incurred prior to the opening of a new or relocated store, associated with a remodeled store or related to the opening of a distribution facility are charged against earnings when incurred.
Litigation Reserves	Litigation Reserves The Company is involved in litigation on an ongoing basis. The Company accrues its best estimate of the probable loss related to legal claims. Such estimates are developed in consultation with in-house counsel, and are based upon a combination of litigation and settlement strategies.
Facility Closing Costs and Lease Exit Charges	Facility Closing Costs and Lease Exit Charges When a store or distribution center is closed, the Company records an expense for unrecoverable costs and accrues a liability equal to the present value at current credit adjusted risk-free interest rates of the remaining lease obligations and anticipated ancillary occupancy costs, net of estimated sublease income. Other store or distribution center closing and liquidation costs are expensed when incurred.
Income Taxes	Income Taxes Deferred income taxes are determined based on the difference between the financial reporting and tax basis of assets and liabilities. Deferred income tax expense (benefit) represents the change during the reporting period in the deferred tax assets and deferred tax liabilities, net of the effect of acquisitions and dispositions. Deferred tax assets include tax loss and credit carryforwards and are reduced by a valuation allowance if, based on available evidence, it is more likely than not that some portion of the deferred tax assets will not be realized. Changes in valuation allowances from period to period are included in the tax provision in the period of change. The Company has net operating loss ("NOL") carryforwards that can be utilized to offset future income for federal and state tax purposes. These NOLs generate a significant deferred tax asset. The Company regularly reviews the deferred tax assets for recoverability considering historical profitability, projected taxable income, the expected timing of the reversals of existing temporary differences and tax planning strategies. The Company recognizes tax liabilities in accordance with ASC 740, "Income Taxes" and the Company adjusts these liabilities with changes in judgment as a result of the evaluation of new information not previously available. Due to the complexity of some of these uncertainties, the ultimate resolution may result in a payment that is materially different from the current estimate of the tax liabilities.
Sales Tax Collected	Sales Tax Collected Sales taxes collected from customers and remitted to various governmental agencies are presented on a net basis (excluded from revenues) in the Company's statement of operations.
Use of Estimates	Use of Estimates The preparation of the financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.
Significant Concentrations	Significant Concentrations The Company's pharmacy sales were primarily to customers covered by health plan contracts, which typically contract with a third party payor that agrees to pay for all or a portion of a customer's eligible prescription purchases. During fiscal 2015, the top five third party payors accounted for approximately 69.7% of the Company's pharmacy sales. The largest third party payor, Express Scripts, represented 27.8%, 31.6% and 35.3% of pharmacy sales during fiscal 2015, 2014 and 2013, respectively. Third party payors are entities such as an insurance company, governmental agency, health maintenance organization or other managed care provider, and typically represent several health care contracts and customers. During fiscal 2015, state sponsored Medicaid agencies and related managed care Medicaid payors accounted for approximately 18.6% of the Company's pharmacy sales, the largest of which was approximately 1.3% of the Company's pharmacy sales. During fiscal 2015, approximately 32.1% of the Company's pharmacy sales were to customers covered by Medicare Part D. Any significant loss of third-party payor business could have a material adverse effect on the Company's business and results of operations. On February 17, 2014, the Company executed an expanded five-year agreement with McKesson Corporation ("McKesson") for pharmaceutical purchasing and distribution (our "Purchasing and Delivery Arrangement"). As part of its Purchasing and Delivery Arrangement, McKesson assumed responsibility for purchasing essentially all of the brand and generic medications the Company dispenses as well as providing a new direct store delivery model to all of the Company's stores. During fiscal 2015, the Company purchased brand and generic pharmaceuticals, which amounted to approximately 94.8% of the dollar volume of its prescription drugs from McKesson. If the Company's relationship with McKesson was disrupted, it could temporarily have difficulty filling prescriptions for brand-named and generic drugs until it executed a replacement wholesaler agreement or developed and implemented self- distribution processes.
Derivatives	Derivatives The Company may enter into interest rate swap agreements to hedge the exposure to increasing rates with respect to its variable rate debt, when the Company deems it prudent to do so. Upon inception of interest rate swap agreements, or modifications thereto, the Company performs a comprehensive review of the interest rate swap agreements based on the criteria as provided by ASC 815, "Derivatives and Hedging." As of February 28, 2015 and March 1, 2014, the Company had no interest rate swap arrangements or other derivatives.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In July 2013, the FASB issued ASU No. 2013-11, Presentation of an Unrecognized Tax Benefit when a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. ASU No. 2013-11 requires an entity to present unrecognized tax benefits as a reduction to deferred tax assets when a net operating loss carryforward, similar tax loss or a tax credit carryforward exists, with limited exceptions. ASU No. 2013-11 is effective for fiscal years beginning on or after December 15, 2013, and for interim periods within those fiscal years. This pronouncement had no effect on the financial statements as the Company has historically presented uncertain tax positions in accordance with ASU No. 2013-11. In May 2013, the FASB issued a proposed Accounting Standards Update, Leases (Topic 842): a revision of the 2010 proposed Accounting Standards Update, Leases (Topic 840), that would require an entity to recognize assets and liabilities arising under lease contracts on the balance sheet. The proposed standard, as currently drafted, will have a material impact on the Company's reported results of operations and financial position. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers. This ASU supersedes the revenue recognition requirements in Accounting Standards Codification 605—Revenue Recognition and most industry-specific guidance throughout the Codification. The standard requires that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. This ASU is effective for fiscal years beginning after December 15, 2016, and for interim periods within those fiscal years. The Company is in the process of assessing the impact of the adoption of ASU 2014-09 on its financial position, results of operations and cash flows. In January 2015, the FASB issued ASU No. 2015-01, Income Statement—Extraordinary and Unusual Items (Subtopic 225-20). This ASU eliminates the concept of extraordinary items in Accounting Standards Codification Subtopic 225-20, Income Statement—Extraordinary and Unusual Items. The standard eliminates and no longer requires that an entity recognize an unusual and infrequent event separately in the income statement as an extraordinary item, net of tax. This ASU is effective for fiscal years beginning after December 15, 2015, and for interim periods within those fiscal years. The Company does not expect the impact of the adoption of ASU 2015-01 to have a material impact on its financial position, results of operations and cash flows. In February 2015, the FASB issued ASU No. 2015-02, Consolidation—Amendments to the Consolidation Analysis (Topic 810). This ASU requires reporting entities to reevaluate whether they should consolidate certain legal entities under the revised consolidation model. This standard modifies the evaluation of whether limited partnerships and similar legal entities are variable interest entities (VIEs), eliminates the presumption that a general partner should consolidate a limited partnership, and affects the consolidation analysis of reporting entities that are involved with VIEs, especially those that have fee arrangements and related party relationships. This ASU is effective for fiscal years beginning after December 15, 2015, and for interim periods within those fiscal years. The Company is in the process of assessing the impact of the adoption of ASU 2015-02 on its financial position, results of operations and cash flows.

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Feb. 28, 2015

The Company's fiscal year ends on the Saturday closest to February 29 or March 1. The fiscal years ended February 28, 2015, March 1, 2014 and March 2, 2013 included 52 weeks.

Principles of Consolidation

The consolidated financial statements include the accounts of the Company and all of its 100 percent owned subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation.

Cash and Cash Equivalents

Cash and cash equivalents consist of cash on hand and highly liquid investments, which are readily convertible to known amounts of cash and which have original maturities of three months or less when purchased.

Allowance for Uncollectible Receivables

Approximately 97.5% of prescription sales are made to customers who are covered by third-party payors, such as insurance companies, government agencies and employers. The Company recognizes receivables that represent the amount owed to the Company for sales made to customers or employees of those payors that have not yet been paid. The Company maintains a reserve for the amount of these receivables deemed to be uncollectible. This reserve is calculated based upon historical collection activity adjusted for current conditions.

Inventories

Inventories are stated at the lower of cost or market. Inventory balances include the capitalization of certain costs related to purchasing, freight and handling costs associated with placing inventory in its location and condition for sale. The Company uses the last-in, first-out ("LIFO") cost flow assumption for substantially all of its inventories. The Company calculates its inflation index based on internal product mix and utilizes the link-chain LIFO method.

Impairment of Long-Lived Assets

Asset impairments are recorded when the carrying value of assets are not recoverable. For purposes of recognizing and measuring impairment of long- lived assets, the Company categorizes assets of operating stores as "Assets to Be Held and Used" and "Assets to Be Disposed Of." The Company evaluates assets at the store level because this is the lowest level of identifiable cash flows ascertainable to evaluate impairment. Assets being tested for recoverability at the store level include tangible long-lived assets and identifiable, finite-lived intangibles that arose in purchase business combinations. Corporate assets to be held and used are evaluated for impairment based on excess cash flows from the stores that support those assets.

The Company reviews long-lived assets to be held and used for impairment annually or whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If the sum of the undiscounted expected future cash flows is less than the carrying amount of the asset, the Company recognizes an impairment loss. Impairment losses are measured as the amount by which the carrying amount of the asset exceeds the fair value of the asset. When fair values are not available, the Company estimates fair value using the expected future cash flows discounted at a rate commensurate with the risks associated with the recovery of the asset.

Property, Plant and Equipment

Property, plant and equipment are stated at cost, net of accumulated depreciation and amortization. The Company provides for depreciation using the straight-line method over the following useful lives: buildings—30 to 45 years; equipment—3 to 15 years.

Leasehold improvements are amortized on a straight-line basis over the shorter of the estimated useful life of the asset or the term of the lease. When determining the amortization period of a leasehold improvement, the Company considers whether discretionary exercise of a lease renewal option is reasonably assured. If it is determined that the exercise of such option is reasonably assured, the Company will amortize the leasehold improvement asset over the minimum lease term, plus the option period. This determination depends on the remaining life of the minimum lease term and any economic penalties that would be incurred if the lease option is not exercised.

Capitalized lease assets are recorded at the lesser of the present value of minimum lease payments or fair market value and amortized over the estimated useful life of the related property or term of the lease.

The Company capitalizes direct internal and external development costs associated with internal-use software. Neither preliminary evaluation costs nor costs associated with the software after implementation are capitalized. For fiscal years 2015, 2014 and 2013, the Company capitalized costs of approximately $7,550, $6,547 and $5,844, respectively.

Goodwill

The Company recognizes goodwill as the excess of the purchase price over the fair value of the assets acquired and liabilities assumed during business combinations. The Company accounts for goodwill under ASC Topic 350, "Intangibles—Goodwill and Other", which does not permit amortization, but instead requires the Company to perform an annual impairment review, or more frequently if events or circumstances indicate that impairment may be more likely. See Note 11 for additional information on goodwill.

Intangible Assets

The Company has certain finite-lived intangible assets that are amortized over their useful lives. The value of favorable and unfavorable leases on stores acquired in business combinations are amortized over the terms of the leases on a straight-line basis. Prescription files acquired in business combinations are amortized over an estimated useful life of ten years on an accelerated basis, which approximates the anticipated prescription file retention and related cash flows. Purchased prescription files acquired in other than business combinations are amortized over their estimated useful lives of five years on a straight-line basis.

Deferred Financing Costs

Costs incurred to issue debt are deferred and amortized as a component of interest expense over the terms of the related debt agreements. Amortization expense of deferred financing costs was $15,301, $15,259 and $21,896 for fiscal 2015, 2014 and 2013, respectively.

Revenue Recognition

For front end sales, the Company recognizes revenue from the sale of merchandise at the time the merchandise is sold. The Company records revenue net of an allowance for estimated future returns. Return activity is immaterial to revenues and results of operations in all periods presented. For third party payor pharmacy sales, revenue is recognized at the time the prescription is filled, which is or approximates when the customer picks up the prescription and is recorded net of an allowance for prescriptions that were filled but will not be picked up by the customer. For all periods presented, there is no material difference between the revenue recognized at the time the prescription is filled and that which would be recognized when the customer picks up the prescription. For cash prescriptions and patient third party payor co-payments, the Company recognizes revenue when the patient picks up the prescription and tenders the cash price or patient third party payor co-payment amount at the point of sale. Prescriptions are generally not returnable.

The Company offers a chain wide loyalty card program titled wellness +. Members participating in the wellness + loyalty card program earn points on a calendar year basis for eligible front end merchandise purchases and qualifying prescriptions. One point is awarded for each dollar spent towards front end merchandise and 25 points are awarded for each qualifying prescription.

Members reach specific wellness + tiers based on the points accumulated during the calendar year, which entitles such customers to certain future discounts and other benefits upon reaching that tier. For example, any customer that reaches 1,000 points in a calendar year achieves the "Gold" tier, enabling them to receive a 20% discount on qualifying purchases of front end merchandise for the remaining portion of the calendar year and also the next calendar year. There are also similar "Silver" and "Bronze" levels with lower thresholds and benefit levels.

As wellness + customers accumulate points, the Company defers the value of the points earned as deferred revenue (included in other current and noncurrent liabilities, based on the expected usage). The amount deferred is based on historic and projected customer activity (e.g., tier level, spending level). As customers receive discounted front end merchandise, the Company recognizes an allocable portion of the deferred revenue. The Company deferred $111,208 as of February 28, 2015 of which $89,657 is included in other current liabilities and $21,551 is included in noncurrent liabilities. The Company deferred $103,562 as of March 1, 2014 of which $83,668 is included in other current liabilities and $19,894 is included in noncurrent liabilities.

Cost of Goods Sold

Cost of goods sold includes the following: the cost of inventory sold during the period, including related vendor rebates and allowances, LIFO credit or charges, costs incurred to return merchandise to vendors, inventory shrink, purchasing costs and warehousing costs, which include inbound freight costs from the vendor, distribution payroll and benefit costs, distribution center occupancy costs and depreciation expense and delivery expenses to the stores.

Vendor Rebates and Allowances

Rebates and allowances received from vendors relate to either buying and merchandising or promoting the product. Buying and merchandising related rebates and allowances are recorded as a reduction of cost of goods sold as product is sold. Buying and merchandising rebates and allowances include all types of vendor programs such as cash discounts from timely payment of invoices, purchase discounts or rebates, volume purchase allowances, price reduction allowances and slotting allowances. Certain product promotion related rebates and allowances, primarily related to advertising, are recorded as a reduction in selling, general and administrative expenses when the advertising commitment has been satisfied.

Rent

The Company records rent expense on operating leases on a straight-line basis over the minimum lease term. The Company begins to record rent expense at the time that the Company has the right to use the property. From time to time, the Company receives incentive payments from landlords that subsidize lease improvement construction. These leasehold incentives are deferred and recognized on a straight-line basis over the minimum lease term.

Selling, General and Administrative Expenses

Selling, general and administrative expenses include store and corporate administrative payroll and benefit costs, occupancy costs which include retail store and corporate rent costs, facility and leasehold improvement depreciation and utility costs, advertising, repair and maintenance, insurance, equipment depreciation and professional fees.

Repairs and Maintenance

Routine repairs and maintenance are charged to operations as incurred. Improvements and major repairs, which extend the useful life of an asset, are capitalized and depreciated.

Advertising

Advertising costs, net of specific vendor advertising allowances, are expensed in the period the advertisement first takes place. Advertising expenses, net of vendor advertising allowances, for fiscal 2015, 2014 and 2013 were $318,157, $322,843 and $335,779, respectively.

Insurance

The Company is self-insured for certain general liability and workers' compensation claims. For claims that are self-insured, stop-loss insurance coverage is maintained for workers' compensation occurrences exceeding $1,000 and general liability occurrences exceeding $2,000. The Company utilizes actuarial studies as the basis for developing reported claims and estimating claims incurred but not reported relating to the Company's self-insurance. Workers' compensation claims are discounted to present value using a risk- free interest rate.

Benefit Plan Accruals

The Company has several defined benefit plans, under which participants earn a retirement benefit based upon a formula set forth in the plan. The Company records expense related to these plans using actuarially determined amounts that are calculated under the provisions of ASC 715, "Compensation—Retirement Benefits." Key assumptions used in the actuarial valuations include the discount rate, the expected rate of return on plan assets and the rate of increase in future compensation levels.

Stock-Based Compensation

The Company has several stock option plans, which are described in detail in Note 15. The Company accounts for stock-based compensation under ASC 718, "Compensation—Stock Compensation." The Company recognizes option expense over the requisite service period of the award, net of an estimate for the impact of award forfeitures.

Store Pre-opening Expenses

Costs incurred prior to the opening of a new or relocated store, associated with a remodeled store or related to the opening of a distribution facility are charged against earnings when incurred.

Litigation Reserves

The Company is involved in litigation on an ongoing basis. The Company accrues its best estimate of the probable loss related to legal claims. Such estimates are developed in consultation with in-house counsel, and are based upon a combination of litigation and settlement strategies.

Facility Closing Costs and Lease Exit Charges

When a store or distribution center is closed, the Company records an expense for unrecoverable costs and accrues a liability equal to the present value at current credit adjusted risk-free interest rates of the remaining lease obligations and anticipated ancillary occupancy costs, net of estimated sublease income. Other store or distribution center closing and liquidation costs are expensed when incurred.

Income Taxes

Deferred income taxes are determined based on the difference between the financial reporting and tax basis of assets and liabilities. Deferred income tax expense (benefit) represents the change during the reporting period in the deferred tax assets and deferred tax liabilities, net of the effect of acquisitions and dispositions. Deferred tax assets include tax loss and credit carryforwards and are reduced by a valuation allowance if, based on available evidence, it is more likely than not that some portion of the deferred tax assets will not be realized. Changes in valuation allowances from period to period are included in the tax provision in the period of change.

The Company has net operating loss ("NOL") carryforwards that can be utilized to offset future income for federal and state tax purposes. These NOLs generate a significant deferred tax asset. The Company regularly reviews the deferred tax assets for recoverability considering historical profitability, projected taxable income, the expected timing of the reversals of existing temporary differences and tax planning strategies.

The Company recognizes tax liabilities in accordance with ASC 740, "Income Taxes" and the Company adjusts these liabilities with changes in judgment as a result of the evaluation of new information not previously available. Due to the complexity of some of these uncertainties, the ultimate resolution may result in a payment that is materially different from the current estimate of the tax liabilities.

Sales Tax Collected

Sales taxes collected from customers and remitted to various governmental agencies are presented on a net basis (excluded from revenues) in the Company's statement of operations.

Use of Estimates

The preparation of the financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.

Significant Concentrations

The Company's pharmacy sales were primarily to customers covered by health plan contracts, which typically contract with a third party payor that agrees to pay for all or a portion of a customer's eligible prescription purchases. During fiscal 2015, the top five third party payors accounted for approximately 69.7% of the Company's pharmacy sales. The largest third party payor, Express Scripts, represented 27.8%, 31.6% and 35.3% of pharmacy sales during fiscal 2015, 2014 and 2013, respectively. Third party payors are entities such as an insurance company, governmental agency, health maintenance organization or other managed care provider, and typically represent several health care contracts and customers.

During fiscal 2015, state sponsored Medicaid agencies and related managed care Medicaid payors accounted for approximately 18.6% of the Company's pharmacy sales, the largest of which was approximately 1.3% of the Company's pharmacy sales. During fiscal 2015, approximately 32.1% of the Company's pharmacy sales were to customers covered by Medicare Part D. Any significant loss of third-party payor business could have a material adverse effect on the Company's business and results of operations.

On February 17, 2014, the Company executed an expanded five-year agreement with McKesson Corporation ("McKesson") for pharmaceutical purchasing and distribution (our "Purchasing and Delivery Arrangement"). As part of its Purchasing and Delivery Arrangement, McKesson assumed responsibility for purchasing essentially all of the brand and generic medications the Company dispenses as well as providing a new direct store delivery model to all of the Company's stores. During fiscal 2015, the Company purchased brand and generic pharmaceuticals, which amounted to approximately 94.8% of the dollar volume of its prescription drugs from McKesson. If the Company's relationship with McKesson was disrupted, it could temporarily have difficulty filling prescriptions for brand-named and generic drugs until it executed a replacement wholesaler agreement or developed and implemented self- distribution processes.

Derivatives

The Company may enter into interest rate swap agreements to hedge the exposure to increasing rates with respect to its variable rate debt, when the Company deems it prudent to do so. Upon inception of interest rate swap agreements, or modifications thereto, the Company performs a comprehensive review of the interest rate swap agreements based on the criteria as provided by ASC 815, "Derivatives and Hedging." As of February 28, 2015 and March 1, 2014, the Company had no interest rate swap arrangements or other derivatives.

Recent Accounting Pronouncements

In July 2013, the FASB issued ASU No. 2013-11, Presentation of an Unrecognized Tax Benefit when a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. ASU No. 2013-11 requires an entity to present unrecognized tax benefits as a reduction to deferred tax assets when a net operating loss carryforward, similar tax loss or a tax credit carryforward exists, with limited exceptions. ASU No. 2013-11 is effective for fiscal years beginning on or after December 15, 2013, and for interim periods within those fiscal years. This pronouncement had no effect on the financial statements as the Company has historically presented uncertain tax positions in accordance with ASU No. 2013-11.

In May 2013, the FASB issued a proposed Accounting Standards Update, Leases (Topic 842): a revision of the 2010 proposed Accounting Standards Update, Leases (Topic 840), that would require an entity to recognize assets and liabilities arising under lease contracts on the balance sheet. The proposed standard, as currently drafted, will have a material impact on the Company's reported results of operations and financial position.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers. This ASU supersedes the revenue recognition requirements in Accounting Standards Codification 605—Revenue Recognition and most industry-specific guidance throughout the Codification. The standard requires that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. This ASU is effective for fiscal years beginning after December 15, 2016, and for interim periods within those fiscal years. The Company is in the process of assessing the impact of the adoption of ASU 2014-09 on its financial position, results of operations and cash flows.

In January 2015, the FASB issued ASU No. 2015-01, Income Statement—Extraordinary and Unusual Items (Subtopic 225-20). This ASU eliminates the concept of extraordinary items in Accounting Standards Codification Subtopic 225-20, Income Statement—Extraordinary and Unusual Items. The standard eliminates and no longer requires that an entity recognize an unusual and infrequent event separately in the income statement as an extraordinary item, net of tax. This ASU is effective for fiscal years beginning after December 15, 2015, and for interim periods within those fiscal years. The Company does not expect the impact of the adoption of ASU 2015-01 to have a material impact on its financial position, results of operations and cash flows.

In February 2015, the FASB issued ASU No. 2015-02, Consolidation—Amendments to the Consolidation Analysis (Topic 810). This ASU requires reporting entities to reevaluate whether they should consolidate certain legal entities under the revised consolidation model. This standard modifies the evaluation of whether limited partnerships and similar legal entities are variable interest entities (VIEs), eliminates the presumption that a general partner should consolidate a limited partnership, and affects the consolidation analysis of reporting entities that are involved with VIEs, especially those that have fee arrangements and related party relationships. This ASU is effective for fiscal years beginning after December 15, 2015, and for interim periods within those fiscal years. The Company is in the process of assessing the impact of the adoption of ASU 2015-02 on its financial position, results of operations and cash flows.