Computation of Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2016

Earnings Per Share Reconciliation [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

	For the Three Months Ended				For the Nine Months Ended
	September 30, 2016		October 2, 2015		September 30, 2016		October 2, 2015
In thousands, except per share amounts
Net earnings	$	17,455	$	17,224	$	43,727	$	51,664
Basic:
Weighted average number of shares outstanding	27,128		27,179		27,096		27,203
Basic earnings per share		$0.64		$0.63		$1.61		$1.90
Diluted:
Weighted average number of shares outstanding	27,128		27,179		27,096		27,203
Weighted average shares issuable on exercise of dilutive stock options	140		119		138		136
Weighted average shares issuable on redemption of convertible notes	810		472		708		576
Weighted average shares issuable on redemption of warrants	2		—		1		—
Total	28,080		27,770		27,943		27,915
Diluted earnings per share		$0.62		$0.62		$1.56		$1.85