Dividends (Tables)

6 Months Ended

Jun. 30, 2012

Dividends Disclosure [Abstract]

Dividend declared and paid on a per share basis

	2012
	Date Declared	Record Date	Payment Date	Dividend per Share
	January 31, 2012	February 10, 2012	February 15, 2012	$	0.06
	April 19, 2012	April 30, 2012	May 15, 2012		0.06
Total				$	0.12
	2011
	Date Declared	Record Date	Payment Date	Dividend per Share
	January 21, 2011	February 1, 2011	February 15, 2011	$	0.05
	April 21, 2011	May 2, 2011	May 13, 2011		0.05
Total				$	0.10