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Summary of Significant Accounting Policies - Risks and Uncertainties and Use of Estimates (Details) | 12 Months Ended
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Dec. 31, 2019 employee
Segment Reporting Information [Line Items] |
Number of employees | 8,100
Percent of employees located outside of the U.S. | 17.00%
Percent of employees covered by collective bargaining agreements | 40.00%
Number of employees covered by USW collective bargaining agreement expiring February 29, 2020 | 1,500

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- Definition Employees, Percent Covered by Collective Bargaining Agreements + References No definition available. + Details
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- Definition Entity Number Of Employees Covered By USW Collective Bargaining Agreements Expiring February 29 2020 + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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