BANK CREDIT ARRANGEMENTS (Details) - USD ($) $ in Thousands	Dec. 30, 2017	Dec. 31, 2016
Bank Credit Arrangements
Outstanding amount	$ 161	$ 746
Short-term borrowings
Bank Credit Arrangements
Total line of credit facility for short-term borrowings	113,437
Outstanding amount	161	0
Unused and available borrowings	$ 113,276
Weighted average interest rate on short-term borrowings (as a percent)	5.00%
Other short-term bank loans
Bank Credit Arrangements
Outstanding amount	$ 161	$ 746