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Net Sales - Narrative (Details) - Topic 606 [Member] - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Disaggregation Of Revenue [Line Items]    
Contract asset balances $ 0 $ 0
Capitalized costs 0 0
Remaining performance obligations $ 83,000,000 $ 119,000,000
Revenue, practical expedient, financing component true true