Revenue - Summary of Disaggregated Information Pertaining to Net Sales (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disaggregation Of Revenue [Line Items]
Net sales	$ 229,480	$ 209,855	$ 215,742	$ 211,209	$ 209,327	$ 210,120	$ 195,974	$ 184,941	$ 866,286	$ 800,362	$ 761,216
Americas [Member]
Disaggregation Of Revenue [Line Items]
Net sales									124,690	89,773	74,986
Product [Member]
Disaggregation Of Revenue [Line Items]
Net sales									866,286	800,362	761,216
Composite Fibers [Member]
Disaggregation Of Revenue [Line Items]
Net sales									554,869	544,260	516,954
Composite Fibers [Member] | Europe, Middle East and Africa [Member]
Disaggregation Of Revenue [Line Items]
Net sales									354,978	349,336	341,334
Composite Fibers [Member] | Americas [Member]
Disaggregation Of Revenue [Line Items]
Net sales									113,546	107,064	97,441
Composite Fibers [Member] | Asia Pacific [Member]
Disaggregation Of Revenue [Line Items]
Net sales									86,345	87,860	78,179
Composite Fibers [Member] | Food & Beverage [Member]
Disaggregation Of Revenue [Line Items]
Net sales									279,515	268,474	258,463
Composite Fibers [Member] | Wallcovering [Member]
Disaggregation Of Revenue [Line Items]
Net sales									103,686	103,011	90,767
Composite Fibers [Member] | Technical Specialties and Other [Member]
Disaggregation Of Revenue [Line Items]
Net sales									81,281	76,991	71,558
Composite Fibers [Member] | Metallized [Member]
Disaggregation Of Revenue [Line Items]
Net sales									52,174	57,088	61,059
Composite Fibers [Member] | Composite Laminates [Member]
Disaggregation Of Revenue [Line Items]
Net sales									38,213	38,696	35,107
Advanced Airlaid Materials [Member]
Disaggregation Of Revenue [Line Items]
Net sales									311,417	256,102	244,262
Advanced Airlaid Materials [Member] | Europe, Middle East and Africa [Member]
Disaggregation Of Revenue [Line Items]
Net sales									163,157	132,480	125,818
Advanced Airlaid Materials [Member] | Americas [Member]
Disaggregation Of Revenue [Line Items]
Net sales									144,913	122,379	116,895
Advanced Airlaid Materials [Member] | Asia Pacific [Member]
Disaggregation Of Revenue [Line Items]
Net sales									3,347	1,243	1,549
Advanced Airlaid Materials [Member] | Feminine Hygiene [Member]
Disaggregation Of Revenue [Line Items]
Net sales									195,686	179,671	173,902
Advanced Airlaid Materials [Member] | Specialty Wipes [Member]
Disaggregation Of Revenue [Line Items]
Net sales									45,375	29,519	25,206
Advanced Airlaid Materials [Member] | Table Top [Member]
Disaggregation Of Revenue [Line Items]
Net sales									21,600	6,707	6,718
Advanced Airlaid Materials [Member] | Adult Incontinence [Member]
Disaggregation Of Revenue [Line Items]
Net sales									19,734	14,425	12,281
Advanced Airlaid Materials [Member] | Home Care [Member]
Disaggregation Of Revenue [Line Items]
Net sales									16,010	13,029	12,630
Advanced Airlaid Materials [Member] | Other [Member]
Disaggregation Of Revenue [Line Items]
Net sales									$ 13,012	$ 12,751	$ 13,525