XML 49 R39.htm IDEA: XBRL DOCUMENT v3.22.1
Long-Term Debt (Tables)
3 Months Ended
Mar. 31, 2022
Debt Disclosure [Abstract]  
Outstanding Long-Term Debt Our outstanding long-term debt is shown below: 
March 31,December 31,
(in thousands)20222021
Uncollateralized senior notes:
5.93% note, due October 31, 2023 $6,000 $6,000 
5.68% note, due June 30, 2026 14,500 14,500 
6.43% note, due May 2, 2028 4,900 4,900 
3.73% note, due December 16, 2028 14,000 14,000 
3.88% note, due May 15, 2029 40,000 40,000 
3.25% note, due April 30, 203270,000 70,000 
3.48% note, due May 31, 203850,000 50,000 
3.58% note, due November 30, 203850,000 50,000 
3.98% note, due August 20, 2039100,000 100,000 
       2.98% note, due December 20, 203470,000 70,000 
3.00% note, due July 15, 203550,000 50,000 
2.96% note, due August 15, 2035 40,000 40,000 
2.49% notes Due January 25, 203750,000 50,000 
2.95% notes Due March 15, 204250,000 — 
Equipment security note
2.46% note, due September 24, 20319,165 9,378 
Less: debt issuance costs(970)(913)
Total long-term debt617,595 567,865 
Less: current maturities(19,717)(17,962)
Total long-term debt, net of current maturities$597,878 $549,903 
Schedule of Line of Credit Facilities [Line Items]  
Schedule of Line of Credit Facilities [Table Text Block]
(in thousands)Total Borrowing CapacityLess: Amount of Debt IssuedLess: Unfunded CommitmentsRemaining Borrowing Capacity
Shelf Agreement
Prudential Shelf Agreement (1)
$370,000 $(220,000)$— $150,000 
MetLife Shelf Agreement (1)
150,000 (50,000)— 100,000 
Total Shelf Agreements as of March 31, 2022
$520,000 $(270,000)$— $250,000