STOCK-BASED COMPENSATION - Schedule of Shares Available for Grant (Details) - shares			12 Months Ended
	Apr. 26, 2017	Apr. 23, 2015	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016
Shares Available for Grant
Options granted (in shares)			0	842,000	225,000
Forfeited (in shares)			1,356,000	1,129,000	521,000
2009 Stock Plan
Shares Available for Grant
Balance at beginning of period (in shares)			2,632,000
Authorized (in shares)	1,500,000.0	2,500,000	1,500,000
Options granted (in shares)			0
Options forfeited or expired (in shares)			1,356,000
Balance at end of period (in shares)			3,899,000	2,632,000
2009 Stock Plan | RSUs
Shares Available for Grant
Granted (in shares)			(1,852,000)
Forfeited (in shares)			263,000