FAIR VALUE MEASUREMENT

6 Months Ended

Jun. 26, 2022

Assets measured at fair value on a recurring basis

Our assets measured at fair value on a recurring basis consisted of the following:


	June 26, 2022
(in thousands)	Total fair value		Quoted prices in active markets for identical assets (level 1)		Significant other observable inputs (level 2)		Significant unobservable inputs (level 3)
Cash and cash equivalents	$	32,432	$	32,432	$	—	$	—
Restricted cash and cash equivalents	57,563		57,563		—		—
Cash, cash equivalents and restricted cash (1)	89,995		89,995		—		—

Municipal debt securities	52,266		—		52,266		—
Corporate debt securities	64,928		—		64,928		—
Agency mortgage-backed securities	85		—		85		—
U.S. government and agency securities	986		—		986		—
Restricted investments classified as held-to-maturity (2)	$	118,265	$	—	$	118,265	$	—


	December 26, 2021
(in thousands)	Total fair value		Quoted prices in active markets for identical assets (level 1)		Significant other observable inputs (level 2)		Significant unobservable inputs (level 3)
Cash and cash equivalents	$	49,896	$	49,896	$	—	$	—
Restricted cash and cash equivalents	53,289		53,289		—		—
Cash, cash equivalents and restricted cash (1)	103,185		103,185		—		—

Municipal debt securities	58,505		—		58,505		—
Corporate debt securities	78,357		—		78,357		—
Agency mortgage-backed securities	152		—		152		—
U.S. government and agency securities	1,070		—		1,070		—
Restricted investments classified as held-to-maturity (2)	$	138,084	$	—	$	138,084	$	—

(1)Cash, cash equivalents and restricted cash include money market funds and deposits.

(2)Refer to Note 3: Restricted Cash and Investments for additional details on our held-to-maturity debt securities.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

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