DEBT (Tables)

12 Months Ended

Dec. 31, 2019

Debt Instrument [Line Items]

Schedule of debt

At December 31, 2019 and 2018, debt consisted of the following:

	December 31,
	2019		2018
Long-term debt
Senior Unsecured Notes due through 2045, interest at 2.8% to 4.0% (net of debt issuance costs of $1,282 and $1,392 at December 31, 2019 and 2018, respectively), swapped $50,000 to variable interest rates of 2.4% to 2.6%	$	701,681	$	691,877
Other borrowings due through 2023, interest up to 2.0%	10,733		10,783
	712,414		702,660
Less current portion	112		111
Long-term debt, less current portion	712,302		702,549
Short-term debt
Amounts due banks, weighted average interest at 4.9% in 2019	34,857		—
Current portion long-term debt	112		111
Total short-term debt	34,969		111
Total debt	$	747,271	$	702,660

Senior Notes [Member]

Debt Instrument [Line Items]

Schedule of debt

The maturity and interest rates of the 2015 Notes and 2016 Notes are as follows:

	Amount		Maturity Date	Interest Rate
2015 Notes
Series A	$	100,000	August 20, 2025	3.15	%
Series B	100,000		August 20, 2030	3.35	%
Series C	50,000		April 1, 2035	3.61	%
Series D	100,000		April 1, 2035	4.02	%
2016 Notes
Series A	$	100,000	October 20, 2028	2.75	%
Series B	100,000		October 20, 2033	3.03	%
Series C	100,000		October 20, 2037	3.27	%
Series D	50,000		October 20, 2041	3.52	%