RESTRUCTURING AND ASSET IMPAIRMENTS - Narrative (Details) - USD ($) $ in Thousands	Jun. 26, 2021	Mar. 27, 2021	Dec. 26, 2020	Jun. 27, 2020	Mar. 28, 2020	Dec. 28, 2019
Restructuring Cost and Reserve [Line Items]
Severance and other personnel related costs liability and lease obligation liabilities	$ 2,842	$ 2,221	$ 5,816	$ 7,199	$ 2,531	$ 6,405
Severance and Transition Costs | Accrued Compensation and Accrued Liabilities
Restructuring Cost and Reserve [Line Items]
Severance and other personnel related costs liability and lease obligation liabilities	$ 2,800			7,000
Severance and Transition Costs | Other Long-Term Liabilities
Restructuring Cost and Reserve [Line Items]
Severance and other personnel related costs liability and lease obligation liabilities				$ 200