Segment and Geographic Information - Additional Information (Detail) - Customer	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting, Revenue Reconciling Item [Line Items]
Number of customers accounting for percentage of net sales	0	0	0
Customers accounted for certain percentage in net sales	10.00%	10.00%	10.00%
Advanced Airlaid Materials [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Number of customers accounting for percentage of net sales	1	1	1