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UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF PARTNERS' EQUITY (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 24, 2018
Jun. 30, 2019
Jun. 24, 2018
Statement of Partners' Capital [Abstract]        
AOCI, foreign currency translation adjustment, tax $ (746) $ 1,157 $ (1,620) $ 2,302
Unrealized loss on cash flow hedging derivatives, tax   $ (249)   $ (596)
Distribution made to limited partner, cash distributions paid (in dollars per share) $ 0.925 $ 0.89 $ 1.85 $ 1.78