Earnings per Share/Capital Stock: (Tables)

9 Months Ended

Sep. 30, 2019

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

Basic:	For The Three Months Ended September 30,				For the Nine Months Ended   September 30,
(in thousands, except per share amounts)	2019		2018		2019		2018
Net income	$	28,006	$	22,952	$	67,642	$	50,082
Less: (a) Distributed earnings to common shareholders	11,234		10,102		31,466		28,831
Distributed earnings to participating securities	50		54		137		151
Undistributed earnings	16,722		12,796		36,039		21,100
(b) Undistributed earnings allocated to common shareholders	16,647		12,727		35,882		20,991
Undistributed earnings allocated to participating securities	75		69		157		109
Total income available to common shareholders, basic (a)+(b)	$	27,881	$	22,829	$	67,348	$	49,822
Weighted average Common Shares outstanding, basic	36,835		36,737		36,804		36,728
Basic earnings per Common Share	$	0.76	$	0.62	$	1.83	$	1.36

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 Three Months Ended September 30,				For The Nine Months Ended September 30,
(in thousands, except per share amounts)	2019		2018		2019		2018
Common shareholders earnings, basic	$	27,881	$	22,829	$	67,348	$	49,822
Undistributed earnings for dilutive stock-based awards	75		69		157		109
Total common shareholders earnings, diluted	$	27,956	$	22,898	$	67,505	$	49,931
Weighted average common shares outstanding, basic	36,835		36,737		36,804		36,728
Stock-based compensation (1)	161		213		156		207
Weighted average common shares outstanding, diluted	36,996		36,950		36,960		36,935
Diluted earnings per Common Share	$	0.76	$	0.62	$	1.83	$	1.35

(1)      In applying the treasury stock method of reflecting the dilutive effect of outstanding stock-based compensation in the calculation of diluted EPS, 8,556 and 47,792 stock options at September 30, 2019 and 2018, respectively, were deemed to be outstanding in accordance with accounting guidance on earnings per share.  All of the 165,783 and 198,613 restricted stock units at September 30, 2019 and 2018, respectively, were included in the calculation of diluted EPS for the three and nine months ended September 30, 2019 and 2018.