Computation of Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2016

Earnings Per Share [Abstract]

Schedule of earnings per share, basic and diluted

	For the Year Ended December 31,
	2016		2015		2014
In thousands, except per share amounts
Earnings from continuing operations	$	58,854	$	60,438	$	65,780
Loss from discontinued operations, net of tax	—		—		(2,924		)
Loss on disposal of discontinued operations, net of tax	—		—		(4,984		)
Net earnings	$	58,854	$	60,438	$	57,872
Basic:
Weighted average number of shares outstanding	27,107		27,177		27,053
Earnings per share from continuing operations	$	2.17	$	2.22	$	2.43
Loss per share from discontinued operations	—		—		(0.11		)
Loss per share from disposal of discontinued operations	—		—		(0.18		)
Basic earnings per share	$	2.17	$	2.22	$	2.14
Diluted:
Weighted average number of shares outstanding	27,107		27,177		27,053
Weighted average shares issuable on exercise of dilutive stock options	141		133		147
Weighted average shares issuable on exercise of convertible notes	773		558		577
Weighted average shares issuable on exercise of warrants	51		—		—
Total	28,072		27,868		27,777
Earnings per share from continuing operations	$	2.10	$	2.17	$	2.37
Loss per share from discontinued operations	—		—		(0.11		)
Loss per share from disposal of discontinued operations	—		—		(0.18		)
Diluted earnings per share	$	2.10	$	2.17	$	2.08