SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Share Repurchases (Details) - USD ($)	1 Months Ended	12 Months Ended			56 Months Ended
	May 31, 2014	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016	Dec. 29, 2018	Feb. 28, 2015
Accounting Policies [Abstract]
Authorized amount	$ 500,000,000					$ 250,000,000
Length of authorization period	12 months
Shares acquired under share repurchase program		843,278	0	441,494	5,431,409
Amount paid for share repurchase		$ 114,805,000	$ 0	$ 53,800,000	$ 732,600,000