FINANCIAL INSTRUMENTS - Schedule of Cash, Cash Equivalents, Investments and Restricted Cash and Investments Unrealized Loss Positions (Details) $ in Thousands	Sep. 26, 2021 USD ($)
Fair Value
Unrealized Losses Less than 12 Months, available for sale	$ 174,418
Unrealized Losses 12 Months or Greater	7,673
Total, Fair Value	182,091
Gross Unrealized Loss
Unrealized Losses Less than 12 Months, available for sale	(315)
Unrealized Losses 12 Months or Greater	(42)
Total, Gross Unrealized Loss	(357)
U.S. Treasury and agencies
Fair Value
Unrealized Losses Less than 12 Months, available for sale	1,848
Unrealized Losses 12 Months or Greater	0
Total, Fair Value	1,848
Gross Unrealized Loss
Unrealized Losses Less than 12 Months, available for sale	(1)
Unrealized Losses 12 Months or Greater	0
Total, Gross Unrealized Loss	(1)
Municipal notes and bonds
Fair Value
Unrealized Losses Less than 12 Months, available for sale	2,082
Unrealized Losses 12 Months or Greater	0
Total, Fair Value	2,082
Gross Unrealized Loss
Unrealized Losses Less than 12 Months, available for sale	(27)
Unrealized Losses 12 Months or Greater	0
Total, Gross Unrealized Loss	(27)
Corporate notes and bonds
Fair Value
Unrealized Losses Less than 12 Months, available for sale	155,500
Unrealized Losses 12 Months or Greater	7,673
Total, Fair Value	163,173
Gross Unrealized Loss
Unrealized Losses Less than 12 Months, available for sale	(229)
Unrealized Losses 12 Months or Greater	(42)
Total, Gross Unrealized Loss	(271)
Mortgage backed securities — commercial
Fair Value
Unrealized Losses Less than 12 Months, available for sale	14,988
Unrealized Losses 12 Months or Greater	0
Total, Fair Value	14,988
Gross Unrealized Loss
Unrealized Losses Less than 12 Months, available for sale	(58)
Unrealized Losses 12 Months or Greater	0
Total, Gross Unrealized Loss	$ (58)