Costs Associated with Exit and Restructuring - Liabilities and Expenses Related to Exit and Restructuring Activities (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restructuring And Related Activities [Abstract]
Balance at beginning of period	$ 967	$ 1,048	$ 1,479
Charged to earnings	5,890	960	2,041
Cash paid	(5,605)	(1,041)	(2,472)
Balance at the end of period	$ 1,252	$ 967	$ 1,048