Business Combinations (Detail) (Subsequent Event [Member], USD $)	0 Months Ended
	Apr. 30, 2014
Subsequent Event [Member]
Business Acquisition [Line Items]
Percentage of issued and outstanding membership interests acquired	100.00%
Purchase price, initial cash payment	$ 80,000,000
Purchase price, upward closing working capital adjustment	5,900,000
Purchase price, stock issued	5,000,000
Purchase price, earn-out period	3 years
Purchase price, earn-out amount	$ 15,000,000