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Equity Interest Investments (Details) - USD ($)
$ in Thousands
3 Months Ended 5 Months Ended 9 Months Ended
Oct. 06, 2018
Oct. 07, 2017
May 17, 2018
Oct. 06, 2018
Oct. 07, 2017
Schedule of Equity Method Investments [Line Items]          
Equity in earnings of affiliates $ 0 $ 615   $ 121 $ 639
Stiga Sports B [Member]          
Schedule of Equity Method Investments [Line Items]          
Equity in earnings of affiliates $ 0 $ 615 $ 121   $ 639