3.	Earnings Per Share

The following table sets forth the computation of basic and diluted income per common share for the periods presented.


	Three Months Ended June 30,
	2011		2010
(In thousands, except per share data)
Numerator:
Net income	$	39,368	$	38,030
Denominator:
Basic common shares outstanding		100,094		102,035
Effect of dilutive securities:
Stock options		293		233
Unvested restricted stock		741		618

Dilutive common shares outstanding		101,128		102,886

Basic income per common share	$	0.39	$	0.37
Diluted income per common share	$	0.39	$	0.37

	Six Months Ended June 30,
	2011		2010
(In thousands, except per share data)
Numerator:
Net income	$	76,785	$	57,224
Denominator:
Basic common shares outstanding		100,416		101,982
Effect of dilutive securities:
Stock options		314		248
Unvested restricted stock		788		655

Dilutive common shares outstanding		101,518		102,885

Basic income per common share	$	0.76	$	0.56
Diluted income per common share	$	0.76	$	0.56

Options to purchase 0.6 million shares for the three- and six-month periods ended June 30, 2010 were not included in the computation of diluted common shares outstanding as their exercise price exceeded the average market price of the Company's common stock for each respective reporting period. All outstanding options to purchase shares for the three- and six-month periods ended June 30, 2011 were included in the computation of diluted common shares outstanding.