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Consolidated Statements of Stockholders' Equity (Deficit) (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 30, 2018
Dec. 31, 2017
Dec. 25, 2016
Consolidated Statements of Stockholders' Equity (Deficit)      
Income attributable to noncontrolling interests $ 1,599 $ 4,233 $ 6,272
Accumulated other comprehensive loss (3,143) (2,117) (5,887)
Unrealized foreign currency translation gains (losses) (6,859) (2,523) (5,402)
Net unrealized gain (loss) on the interest rate swap agreements $ 3,716 $ 406 $ (485)