Revenue - Summary of Disaggregated Information Pertaining to Net Sales (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation Of Revenue [Line Items]
Net sales	$ 229,133	$ 211,207
Product [Member]
Disaggregation Of Revenue [Line Items]
Net sales	229,133	211,207
Composite Fibers [Member]
Disaggregation Of Revenue [Line Items]
Net sales	128,717	141,598
Composite Fibers [Member] | Europe, Middle East and Africa [Member]
Disaggregation Of Revenue [Line Items]
Net sales	77,914	94,782
Composite Fibers [Member] | Americas [Member]
Disaggregation Of Revenue [Line Items]
Net sales	31,640	24,048
Composite Fibers [Member] | Asia Pacific [Member]
Disaggregation Of Revenue [Line Items]
Net sales	19,163	22,768
Composite Fibers [Member] | Food & Beverage [Member]
Disaggregation Of Revenue [Line Items]
Net sales	71,453	70,397
Composite Fibers [Member] | Wallcovering [Member]
Disaggregation Of Revenue [Line Items]
Net sales	18,550	28,132
Composite Fibers [Member] | Technical Specialties [Member]
Disaggregation Of Revenue [Line Items]
Net sales	19,288	20,958
Composite Fibers [Member] | Composite Laminates [Member]
Disaggregation Of Revenue [Line Items]
Net sales	8,475	9,398
Composite Fibers [Member] | Metallized [Member]
Disaggregation Of Revenue [Line Items]
Net sales	10,951	12,713
Advanced Airlaid Materials [Member]
Disaggregation Of Revenue [Line Items]
Net sales	100,416	69,609
Advanced Airlaid Materials [Member] | Europe, Middle East and Africa [Member]
Disaggregation Of Revenue [Line Items]
Net sales	54,439	36,228
Advanced Airlaid Materials [Member] | Americas [Member]
Disaggregation Of Revenue [Line Items]
Net sales	44,334	32,815
Advanced Airlaid Materials [Member] | Asia Pacific [Member]
Disaggregation Of Revenue [Line Items]
Net sales	1,643	566
Advanced Airlaid Materials [Member] | Feminine Hygiene [Member]
Disaggregation Of Revenue [Line Items]
Net sales	54,988	48,473
Advanced Airlaid Materials [Member] | Specialty Wipes [Member]
Disaggregation Of Revenue [Line Items]
Net sales	17,332	7,767
Advanced Airlaid Materials [Member] | Table Top [Member]
Disaggregation Of Revenue [Line Items]
Net sales	13,331	2,065
Advanced Airlaid Materials [Member] | Adult Incontinence [Member]
Disaggregation Of Revenue [Line Items]
Net sales	5,488	4,432
Advanced Airlaid Materials [Member] | Home Care [Member]
Disaggregation Of Revenue [Line Items]
Net sales	3,964	4,027
Advanced Airlaid Materials [Member] | Other [Member]
Disaggregation Of Revenue [Line Items]
Net sales	$ 5,313	$ 2,845