Capital Stock (Tables)

12 Months Ended

Dec. 31, 2021

Equity [Abstract]

Common Stock Activity

Common stock activity is summarized as follows:

	Shares		Dollars
(Dollars in thousands)	Issued	Treasury	Common Stock		Treasury Cost
Balance at January 1, 2019	62,081,391	(23,554,868)	$	211,806	$	(296,390)
Restricted stock awards	—	96,893	(1,253)		1,253
Restricted stock expense	—	—	7,397		—
Restricted stock forfeitures	—	—	(483)		—
Stock options exercised	—	193,681	5,107		2,364
Stock option expense	—	—	492		—
Stock option forfeitures	—	—	(5)		—
Performance stock issued	—	139,478	(1,778)		1,778
Performance stock expense	—	—	6,574		—
Performance stock forfeitures	—	—	(215)		—
Stock consideration in acquisition	—	—	921		—
Employee stock purchase plan	—	5,895	564		77
Treasury shares purchased	—	(87,811)	—		(9,301)
Share repurchase program	—	(33,465)	—		(3,347)
Balances December 31, 2019	62,081,391	(23,240,197)	$	229,127	$	(303,566)
Restricted stock awards	—	55,691	(773)		773
Restricted stock expense	—	—	7,065		—
Restricted stock forfeitures	—	—	(807)		—
Stock options exercised	—	274,672	8,590		3,856
Stock option expense	—	—	153		—
Stock option forfeitures	—	—	(40)		—
Performance stock issued	—	134,824	(1,826)		1,826
Performance stock expense	—	—	1,305		—
Performance stock forfeitures	—	—	(755)		—
Employee stock purchase plan	—	6,494	654		93
Treasury shares purchased	—	(69,973)	—		(9,025)
Share repurchase program	—	(175,000)	—		(20,113)
Balances December 31, 2020	62,081,391	(23,013,489)	$	242,693	$	(326,156)
Restricted stock awards	—	53,934	(762)		762
Restricted stock expense	—	—	6,562		—
Restricted stock forfeitures	—	—	(765)		—
Stock options exercised	—	122,119	4,003		1,767
Stock option expense	—	—	90		—
Stock option forfeitures	—	—	(9)		—
Performance stock issued	—	64,543	(939)		939
Performance stock expense	—	—	13,227		—
Employee stock purchase plan	—	5,730	772		83
Treasury shares purchased	—	(37,710)	—		(6,171)
Acquisition of noncontrolling interests in consolidated subsidiaries	—	—	(4,751)		—
Balances December 31, 2021	62,081,391	(22,804,873)	$	260,121	$	(328,776)