Earnings per share (EPS) (Tables)

3 Months Ended

Mar. 31, 2012

Earnings per share

Schedule of earnings per share

	2012		2011
Three months ended March 31	Basic and diluted		Basic and diluted
Distributed earnings	$	0.31	$	0.31
Undistributed earnings (loss)	0.09		(0.01		)
	$	0.40	$	0.30