Segment Data - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Sales Information [Line Items]
Total assets	$ 538,237	$ 438,051	$ 467,321
Mexico [Member]
Sales Information [Line Items]
Total assets	$ 8,600	$ 10,500