Discontinued Operations - Summary Results for Discontinued Operations in Consolidated Statement of Earnings (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Discontinued Operations And Disposal Groups [Abstract]
Net sales	$ 0	$ 0	$ 13,945
Loss from discontinued operations	7	(141)	(13,971)
Income tax benefit (expense)	(75)	218	1,299
Gain on sale of discontinued operations	201	930	68,745
Income tax expense on sale	0	0	(11,773)
Income from discontinued operations	$ 133	$ 1,007	$ 44,300