FAIR VALUE MEASUREMENTS (Schedule of Fair Value and Carrying Amount of Debt Obligations) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 30, 2018	Sep. 29, 2017	Mar. 11, 2015
Senior notes | Fixed-rate senior notes payable at 5.75%, at Level 1 inputs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate	5.75%			5.75%
Senior notes | Fixed-rate senior notes payable at 5.875%, at Level 1 inputs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate	5.875%		5.875%
Senior notes | Level 1 | Carrying Amount | Fixed-rate senior notes payable at 5.75%, at Level 1 inputs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	$ (1,002,396)	$ (1,002,497)
Senior notes | Level 1 | Carrying Amount | Fixed-rate senior notes payable at 5.875%, at Level 1 inputs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	(843,896)	(843,717)
Senior notes | Level 1 | Fair Value | Fixed-rate senior notes payable at 5.75%, at Level 1 inputs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	(1,014,930)	(937,300)
Senior notes | Level 1 | Fair Value | Fixed-rate senior notes payable at 5.875%, at Level 1 inputs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	(856,333)	(768,188)
Secured loans | Level 3 | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	(2,990)	(319)
Secured loans | Level 3 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	$ (2,936)	$ (319)