Earnings Per Share and Capital Stock (Tables)

12 Months Ended

Dec. 31, 2017

Earnings Per Share [Abstract]

Schedule of reconciliation of Registrant's net income and weighted average Common Shares outstanding for calculating basic net income per share

The following is a reconciliation of Registrant’s net income and weighted average Common Shares outstanding for calculating basic net income per share:

Basic:	For The Years Ended December 31,
(in thousands, except per share amounts)	2017		2016		2015
Net income	$	69,367	$	59,743	$	60,484
Less: (a) Distributed earnings to common shareholders	36,417		33,408		32,690
Distributed earnings to participating securities	197		187		207
Undistributed earnings	32,753		26,148		27,587
(b) Undistributed earnings allocated to common shareholders	32,577		26,003		27,414
Undistributed earnings allocated to participating securities	176		145		173
Total income available to common shareholders, basic (a)+(b)	$	68,994	$	59,411	$	60,104
Weighted average Common Shares outstanding, basic	36,638		36,552		37,389
Basic earnings per Common Share	$	1.88	$	1.63	$	1.61

Schedule of reconciliation of Registrant's net income and weighted average Common Shares outstanding for calculating diluted net income per share

The following is a reconciliation of Registrant’s net income and weighted average Common Shares outstanding for calculating diluted net income per share:

Diluted:	For The Years Ended December 31,
(in thousands, except per share amounts)	2017		2016		2015
Common shareholders earnings, basic	$	68,994	$	59,411	$	60,104
Undistributed earnings for dilutive stock options and restricted stock units	176		145		173
Total common shareholders earnings, diluted	$	69,170	$	59,556	$	60,277
Weighted average Common Shares outstanding, basic	36,638		36,552		37,389
Stock-based compensation (1)	206		198		225
Weighted average Common Shares outstanding, diluted	36,844		36,750		37,614
Diluted earnings per Common Share	$	1.88	$	1.62	$	1.60

(1) In applying the treasury stock method of reflecting the dilutive effect of outstanding stock-based compensation in the calculation of diluted EPS, 69,202 stock options and 205,166 restricted stock units, including performance awards, at December 31, 2017 were deemed to be outstanding in accordance with accounting guidance on earnings per share.