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RESTRICTED CASH AND INVESTMENTS - Held-to-Maturity Investments by Contractual Maturity (Details) - USD ($) $ in Thousands	Dec. 29, 2019	Dec. 30, 2018
Amortized cost
Total held-to-maturity investments	$ 149,373	$ 156,618
Fair value
Total held-to-maturity investments	152,731	$ 155,641
Restricted Cash and Investments
Amortized cost
Due in one year or less	20,312
Due after one year through five years	92,358
Due after five years through ten years	36,703
Total held-to-maturity investments	149,373
Fair value
Due in one year or less	20,356
Due after one year through five years	94,159
Due after five years through ten years	38,216
Total held-to-maturity investments	$ 152,731

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