Business Combinations (Tables)

9 Months Ended

Sep. 30, 2012

Business Combinations [Abstract]

Summary of Financial Information

The unaudited pro-forma financial information summarized in the following table gives effect to the RBF acquisition and assumes that it occurred on January 1, 2010:

	For the three		For the nine
	months ended		months ended
(In thousands, except per share amounts)	September 30, 2011		September 30, 2011
Continuing operations
Revenues	$	158,228	$	461,208
Net income attributable to Michael Baker Corporation		5,467		10,738
Diluted earnings per share		0.56		1.12