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Revenue (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Disaggregation Of Revenue [Line Items] |  |  |  |
Net sales | $ 279,651 | $ 233,473 | $ 750,236 | $ 681,216
Product |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Net sales | 279,651 | 233,473 | 750,236 | 681,216
Composite Fibers |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Net sales | 138,118 | 132,419 | 420,965 | 387,267
Composite Fibers | Europe, Middle East and Africa |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Net sales | 81,576 | 82,032 | 254,317 | 230,434
Composite Fibers | Americas |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Net sales | 33,461 | 31,583 | 100,671 | 97,656
Composite Fibers | Asia Pacific |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Net sales | 23,081 | 18,804 | 65,977 | 59,177
Composite Fibers | Food & beverage |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Net sales | 73,667 | 68,593 | 224,155 | 213,074
Composite Fibers | Wallcovering |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Net sales | 22,116 | 24,695 | 68,927 | 55,847
Composite Fibers | Technical specialties |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Net sales | 22,029 | 22,517 | 70,232 | 61,340
Composite Fibers | Composite laminates |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Net sales | 11,841 | 8,640 | 32,199 | 26,529
Composite Fibers | Metallized |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Net sales | 8,465 | 7,974 | 25,452 | 30,477
Airlaid Materials |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Net sales | 141,533 | 101,054 | 329,271 | 293,949
Airlaid Materials | Europe, Middle East and Africa |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Net sales | 64,730 | 52,835 | 159,354 | 151,434
Airlaid Materials | Americas |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Net sales | 74,876 | 44,141 | 164,392 | 133,789
Airlaid Materials | Asia Pacific |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Net sales | 1,927 | 4,078 | 5,525 | 8,726
Airlaid Materials | Feminine hygiene |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Net sales | 55,177 | 53,463 | 150,002 | 154,227
Airlaid Materials | Specialty wipes |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Net sales | 37,190 | 17,929 | 74,477 | 56,088
Airlaid Materials | Tabletop |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Net sales | 26,447 | 12,445 | 50,498 | 33,026
Airlaid Materials | Adult incontinence |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Net sales | 6,324 | 5,255 | 16,085 | 16,411
Airlaid Materials | Home care |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Net sales | 7,811 | 7,121 | 18,073 | 18,611
Airlaid Materials | Other |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Net sales | $ 8,584 | $ 4,841 | $ 20,136 | $ 15,586

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