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Business, Product and Geographical Area Information and Concentration of Risk - Narrative (Details) | 12 Months Ended
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Dec. 31, 2019 productionfacilities customer | Dec. 31, 2018 customer | Dec. 31, 2017 customer
United States |  |  |
Segment Reporting Information |  |  |
Number of production facilities | 12 |  |
Canada |  |  |
Segment Reporting Information |  |  |
Number of production facilities | 1 |  |
Workforce Subject to Collective Bargaining Arrangements [Member] |  |  |
Segment Reporting Information |  |  |
Concentration risk, percentage | 62.00% |  |
Workforce Subject to Collective Bargaining Arrangements Expiring within One Year [Member] |  |  |
Segment Reporting Information |  |  |
Concentration risk, percentage | 8.00% |  |
Customer Concentration Risk [Member] | Net sales | Largest Customer [Member] |  |  |
Segment Reporting Information |  |  |
Concentration risk, percentage | 25.00% | 25.00% | 27.00%
Number of Customers | customer | 1 | 1 | 1
Customer Concentration Risk [Member] | Net sales | Second Largest Customer [Member] |  |  |
Segment Reporting Information |  |  |
Concentration risk, percentage | 17.00% | 15.00% | 12.00%
Customer Concentration Risk [Member] | Trade receivables | Largest Customer [Member] |  |  |
Segment Reporting Information |  |  |
Concentration risk, percentage | 41.00% | 31.00% |
Customer Concentration Risk [Member] | Trade receivables | Second Largest Customer [Member] |  |  |
Segment Reporting Information |  |  |
Concentration risk, percentage | 10.00% | 11.00% |

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