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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Stock Plans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 25, 2021	Sep. 26, 2020	Sep. 25, 2021	Sep. 26, 2020
Stock Option Plans
Defined Benefit Plan Disclosure [Line Items]
Shares of common stock available for issuance (in shares)	453,718		453,718
Award vesting period			3 years
Compensation expense	$ 8,947	$ 3,065	$ 17,895	$ 8,736
Income tax benefits	$ 2,237	$ 766	$ 4,474	$ 2,184
Stock Option Plans \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Expiration period for grant			7 years
Stock Option Plans \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Expiration period for grant			10 years
Restricted Stock Units (RSUs)
Defined Benefit Plan Disclosure [Line Items]
Award vesting period			3 years
Restricted Shares
Defined Benefit Plan Disclosure [Line Items]
Award vesting period	4 years
Restricted shares granted (in shares)	143,859
Restricted shares granted, value	$ 38,000