Short and Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2019

Debt Disclosure [Abstract]

Schedule Of Outstanding Debt

	December 31,
(In thousands)	2019		2018
2010 Senior Notes payable through 2021, 4.00%, net of debt issuance costs	$	40,000	$	60,000
2016 Senior Notes payable through 2031, 3.40%, net of debt issuance costs	72,708		69,604
Senior revolving credit facility maturing in 2023, net of debt issuance costs	235,686		231,707
Total	348,394		361,311
Amounts due within one year	20,000		20,000
Long-term debt	$	328,394	$	341,311