Income Taxes Income Taxes (Tables)

9 Months Ended

Sep. 30, 2017

Income Tax Disclosure [Abstract]

Schedule of Income Tax Provision

The following table summarizes the Corporation's income tax provision (dollars in thousands):

	Three Months Ended						Nine Months Ended
	September 30, 2017			October 1, 2016			September 30, 2017			October 1, 2016
Income before income taxes	$	55,955		$	50,649		$	83,541		$	113,333
Income taxes	$	18,624		$	16,837		$	27,573		$	38,652
Effective tax rate	33.3		%	33.2		%	33.0		%	34.1		%