TRADE ACCOUNTS AND OTHER RECEIVABLES (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 25, 2017	Jun. 25, 2017	Dec. 25, 2016
Accounts Receivable, Net [Abstract]
Trade accounts receivable		$ 394,219	$ 305,337
Notes receivable - current		630	630
Other receivables		17,041	15,766
Receivables, gross		411,890	321,733
Allowance for doubtful accounts	$ (4,563)	(5,304)	(4,563)
Receivables, net		406,586	317,170
Account receivable from related parties		$ 4,050	$ 3,913
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance, beginning of period	(4,563)
Provision charged to operating results	(771)
Account write-offs and recoveries	374
GNP acquisition	(17)
Effect of exchange rate	(327)
Balance, end of period	$ (5,304)