Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Compensation Expense and Related Tax Benefits

The following table presents compensation expense and the related tax benefits for equity awards recognized in the consolidated statements of income:

	Three months ended June 30						Six months ended June 30
	2013			2012			2013			2012
	(in thousands)
Stock-based compensation expense	$	2,360		$	2,337		$	3,207		$	3,050
Tax benefit	(687		)	(657		)	(911		)	(816		)
Stock-based compensation expense, net of tax	$	1,673		$	1,680		$	2,296		$	2,234