Business Restructuring and Asset Impairments - Reconciliation of Longford Mills Restructuring Liability (Detail) - 2016 Restructuring [Member] - Longford Mills [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($)
Restructuring Cost And Reserve [Line Items]
Expense recognized	$ 2,817
Amounts paid	(781)
Foreign currency translation	(51)
Restructuring liability at December 31, 2016	1,985
Termination Benefits [Member]
Restructuring Cost And Reserve [Line Items]
Expense recognized	1,594
Foreign currency translation	(46)
Restructuring liability at December 31, 2016	1,548
Other Expense [Member]
Restructuring Cost And Reserve [Line Items]
Expense recognized	1,223
Amounts paid	(781)
Foreign currency translation	(5)
Restructuring liability at December 31, 2016	$ 437