Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2016

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 March 31
	2016			2015
	(in thousands)
Stock-based compensation expense	$	1,436		$	1,071
Tax benefit	(433		)	(292		)
Stock-based compensation expense, net of tax	$	1,003		$	779