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v3.19.1

Segment Reporting Schedule of Revenue by Geographic Location (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Disaggregation of Revenue [Line Items] |  |
Sales | $ 239,445 | $ 249,921
UNITED STATES |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 172,254 | 159,562
PE Films |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 66,779 | 93,249
PE Films | Personal Care Materials [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 44,855 | 61,644
PE Films | Surface Protection Films [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 19,888 | 29,815
PE Films | Films For Other Markets [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 2,036 | 1,790
PE Films | Film Products Subtotal [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 66,779 | 93,249
Flexible Packaging Films [Member] [Domain] |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 33,619 | 28,437
Aluminum Extrusions |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 139,047 | 128,235
Aluminum Extrusions | Nonresidential Building And Construction [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 69,638 | 65,280
Aluminum Extrusions | Consumer Durables [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 15,545 | 15,189
Aluminum Extrusions | Distribution [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 8,573 | 10,971
Aluminum Extrusions | Automotive [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 12,627 | 9,673
Aluminum Extrusions | Residential Building And Construction [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 11,672 | 9,601
Aluminum Extrusions | Aluminum Extrusions Subtotal [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 139,047 | 128,235
Aluminum Extrusions | Machinery and Equipment BNL [Domain] |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 9,923 | 9,094
Aluminum Extrusions | Electrical [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 11,069 | 8,427
Exports From United States [Member] | Asia [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 13,493 | 23,592
Exports From United States [Member] | CANADA |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 3,605 | 13,298
Exports From United States [Member] | Europe [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 1,360 | 1,822
Exports From United States [Member] | Latin America [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 2,867 | 3,052
Operations Outside United States [Member] | BRAZIL |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 28,138 | 23,151
Operations Outside United States [Member] | NETHERLANDS |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 9,587 | 11,928
Operations Outside United States [Member] | HUNGARY |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 6,834 | 8,818
Operations Outside United States [Member] | CHINA |  |
Disaggregation of Revenue [Line Items] |  |
Sales | 230 | 2,274
Operations Outside United States [Member] | INDIA |  |
Disaggregation of Revenue [Line Items] |  |
Sales | $ 1,077 | $ 2,424

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