Pro Forma Results of Combined Company Operations (Detail) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Business Acquisition Pro Forma Information [Abstract]
Total Revenues	$ 195,446	$ 211,682
Net loss	$ (2,721)	$ (519)
Loss per share
Basic	$ (0.07)	$ (0.01)
Diluted	$ (0.07)	$ (0.01)