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FAIR VALUE OF FINANCIAL INSTRUMENTS
 6 Months Ended
Jun. 30, 2026
Fair Value Disclosures [Abstract]  
FAIR VALUE OF FINANCIAL INSTRUMENTS FAIR VALUE OF FINANCIAL INSTRUMENTS
 
Debt

The estimated fair value amounts were determined by the Corporation using available market information that is primarily based on quoted market prices for the same or similar issuances as of June 30, 2026. Accordingly, all of the Corporation’s debt is valued as a Level 2 financial instrument. The fair values described below may not be indicative of net realizable value or reflective of future fair values. Furthermore, the use of different methodologies to determine the fair value of certain financial instruments could result in a different estimate of fair value at the reporting date.
June 30, 2026December 31, 2025
(In thousands)Carrying ValueEstimated Fair ValueCarrying ValueEstimated Fair Value
4.24% Senior notes due 2026
$200,000 $199,485 $200,000 $199,556 
4.05% Senior notes due 2028
67,500 66,326 67,500 66,769 
4.11% Senior notes due 2028
90,000 87,815 90,000 88,712 
3.10% Senior notes due 2030
150,000 137,373 150,000 138,721 
3.20% Senior notes due 2032
150,000 131,647 150,000 132,996 
4.49% Senior notes due 2032
200,000 188,320 200,000 191,143 
4.64% Senior notes due 2034
100,000 92,764 100,000 94,153 
Total debt$957,500 $903,730 $957,500 $912,050 
Debt issuance costs, net(1,025)(1,025)(1,125)(1,125)
Unamortized interest rate swap proceeds912 912 1,509 1,509 
Total debt, net$957,387 $903,617 $957,884 $912,434 

Revolving Credit Agreement

In May 2026, the Corporation terminated its existing credit agreement, which was set to expire in May 2027, and entered into a new credit agreement (“Credit Agreement”) with a syndicate of financial institutions. The Credit Agreement, which is set to expire in May 2031, increases the size of the Corporation’s revolving credit facility to $1 billion, and expands the accordion feature to $500 million. The proceeds available under the Credit Agreement are to be used for general corporate purposes, which may include the funding of possible future acquisitions or supporting internal growth initiatives. The new agreement provides for similar financial and debt covenants that are no more restrictive than those in the prior agreement.