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FAIR VALUE MEASUREMENT (Tables)
12 Months Ended
Dec. 31, 2023
Fair Value Disclosures [Abstract]  
Fair Value Measurements, Recurring and Nonrecurring
Our assets measured at fair value on a recurring basis consisted of the following:
December 31, 2023
(in thousands)Total fair valueQuoted prices in active markets for identical assets (level 1)Significant other observable inputs (level 2)Significant unobservable inputs (level 3)
Cash and cash equivalents$61,885 $61,885 $— $— 
Restricted cash and cash equivalents37,421 37,421 — — 
Cash, cash equivalents and restricted cash (1)$99,306 $99,306 $— $— 
Municipal debt securities$31,804 $— $31,804 $— 
Corporate debt securities74,912 — 74,912 — 
Agency mortgage-backed securities13,235 — 13,235 — 
U.S. government and agency securities962 — 962 — 
Restricted investments classified as held-to-maturity (2)$120,913 $— $120,913 $— 
December 25, 2022
(in thousands)Total fair valueQuoted prices in active markets for identical assets (level 1)Significant other observable inputs (level 2)Significant unobservable inputs (level 3)
Cash and cash equivalents$72,054 $72,054 $— $— 
Restricted cash and cash equivalents63,577 63,577 — — 
Cash, cash equivalents and restricted cash (1)$135,631 $135,631 $— $— 
Municipal debt securities$42,431 $— $42,431 $— 
Corporate debt securities76,097 — 76,097 — 
Agency mortgage-backed securities48 — 48 — 
U.S. government and agency securities949 — 949 — 
Restricted investments classified as held-to-maturity (2)$119,525 $— $119,525 $— 
(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.