Business Segment Information - Summary of Net Sales by Geographic Destination (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 104,622	$ 101,151	$ 100,954	$ 89,762	$ 100,284	$ 100,994	$ 100,985	$ 100,014	$ 396,489	$ 402,277	$ 397,611
Domestic Tax Authority [Member] | U.S. [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									305,505	294,682	293,032
Foreign Tax Authority [Member] | Italy [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									15,655	19,573	16,755
Foreign Tax Authority [Member] | United Kingdom [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									11,376	11,402	10,002
Foreign Tax Authority [Member] | Brazil [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									13,512	19,633	26,786
Foreign Tax Authority [Member] | Others [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									$ 50,441	$ 56,987	$ 51,036