Fair Value Measurement	12 Months Ended
Fair Value Measurement	Jan. 01, 2022
Fair Value Disclosures [Abstract]
Fair Value Measurement	Fair Value Measurement General The Company uses a fair value hierarchy that is intended to increase consistency and comparability in fair value measurements and related disclosures. The fair value hierarchy is based on inputs to valuation techniques that are used to measure fair value that are either observable or unobservable. Observable inputs reflect assumptions market participants would use in pricing an asset or liability based on market data obtained from independent sources while unobservable inputs reflect a reporting entity’s own market assumptions. The Company is required to measure certain assets and liabilities at fair value or disclose the fair values of certain assets and liabilities recorded at cost. Accounting standards define fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is estimated assuming the transaction occurs in the principal or most advantageous market for the asset or liability and includes consideration of non-performance risk and credit risk of both parties. A three-tier fair value hierarchy prioritizes the inputs used in measuring fair value. These tiers include: •Level 1 - Valuation inputs are based upon unadjusted quoted prices for identical instruments traded in active markets. •Level 2 - Valuation inputs are based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in inactive markets, and model-based valuation techniques for which all significant assumptions are observable in the market or can be corroborated by observable market data for substantially the full term of the instruments. •Level 3 - Valuation inputs are unobservable and typically reflect management’s estimates of assumptions that market participants would use in pricing the asset or liability. The fair values are determined using model-based techniques that include discounted cash flow models and similar techniques. The fair value estimates of financial instruments are not necessarily indicative of the amounts we might pay or receive in actual market transactions. The use of different market assumptions and/or estimation methodologies may have a material impact on the estimated fair value amounts. Recurring fair value measurements Interest Rate Derivatives We recognize as assets or liabilities at fair value the estimated amounts we would receive or pay upon a termination of interest rate derivatives prior to their scheduled expiration dates. The fair value is based on information that is model-driven and whose inputs were observable (Level 2 inputs) such as LIBOR forward rates. See Note 12. “Interest Rate Derivatives” for further details. Non-recurring fair value measurements Tangible Long-lived and Right of Use (“ROU”) Store Assets We recognized impairments of $4.4 million, $22.0 million and $8.9 million in fiscal years 2021, 2020 and 2019, respectively, related to our long-lived tangible store assets and ROU assets. The impairments were primarily driven by lower than projected customer sales volume in certain stores. The cash flows used in estimating fair value were discounted using a market rate of 7.5%. A decrease in the estimated cash flows would lead to a lower fair value measurement, as would an increase in the discount rate. These non-recurring fair value measurements are classified as Level 3 measurements in the fair value hierarchy. The estimated remaining fair value of the assets impaired during fiscal years 2021 and 2020 was $6.8 million and $30.6 million, respectively; the estimated remaining fair values include amounts estimated at various dates during the related fiscal years. Substantially all of the remaining fair value of the impaired store assets in fiscal years 2021 and 2020 represents the fair value of ROU assets. Refer to Note 1. “Business and Significant Accounting Policies.” Additional fair value information Cash Equivalents and Restricted Cash The carrying amount of cash equivalents and restricted cash approximates fair value due to the short term maturity of the instruments. All cash and cash equivalents are denominated in U.S. currency. Accounts Receivable, Net The carrying amount of accounts receivable approximates fair value due to the short-term nature of those items and the effect of credit losses. Accounts Payable and Other Payables and Accrued Expenses The carrying amounts of accounts payable and other payables and accrued expenses approximate fair value due to the short-term nature of those items. Long-term Debt - Term Loan and Revolving Credit Facility Since the borrowings under the term loan and revolving credit facility utilize variable interest rate setting mechanisms such as LIBOR, the fair values of these borrowings are deemed to approximate the carrying values. We also considered the effect of our own credit risk on the fair values of our term loan and revolving credit facility. Refer to Note 4. “Long-term Debt.” Long-term Debt - 2025 Notes The Company has $402.5 million in aggregate principal amount of 2.50% convertible senior notes due on May 15, 2025 issued and outstanding as of January 1, 2022. The estimated fair value of the 2025 Notes was approximately $674.9 million as of January 1, 2022. The estimated fair value of the 2025 Notes is based on the prices the 2025 Notes have traded in the market as of January 1, 2022, as well as overall market conditions on the date of valuation, stated coupon rates, the number of coupon payments each year and the maturity dates, and represents a Level 2 measurement. Refer to Note 4. “Long-term Debt” for more information on the 2025 Notes.