Earnings per Share (Tables)

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]

A reconciliation of the numerator (net income) and denominator (weighted average number of shares outstanding of the basic and diluted earnings per share ("EPS")) for the three months ended March 31, 2013 and March 31, 2012 is as follows (in thousands, except per share data):

	Three months ended March 31, 2013
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	19,734	84,770	$	0.23
Effect of restricted stock	—		276
Diluted EPS	$	19,734	85,046	$	0.23

	Three months ended March 31, 2012
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	16,588	86,475	$	0.19
Effect of restricted stock	—		351
Diluted EPS	$	16,588	86,826	$	0.19