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Debt (Tables)
12 Months Ended
Dec. 31, 2021
Debt Disclosure [Abstract]  
Long-term Debt
Long-term debt, net consisted of the following at December 31:
20212020
(In thousands)
U.S. dollar 3.73% senior notes due September 2024
$300,000 $300,000 
U.S. dollar 3.91% senior notes due June 2025
50,000 50,000 
U.S. dollar 3.96% senior notes due August 2025
100,000 100,000 
U.S. dollar 4.18% senior notes due December 2025
275,000 275,000 
U.S. dollar 3.83% senior notes due September 2026
100,000 100,000 
U.S. dollar 4.32% senior notes due December 2027
250,000 250,000 
U.S. dollar 4.37% senior notes due December 2028
50,000 50,000 
U.S. dollar 3.98% senior notes due September 2029
100,000 100,000 
U.S. dollar 4.45% senior notes due August 2035
50,000 50,000 
British pound 2.59% senior note due November 2028
203,046 204,880 
British pound 2.70% senior note due November 2031
101,510 102,433 
Euro 1.34% senior notes due October 2026
341,284 366,806 
Euro 1.71% senior notes due December 2027
85,323 91,706 
Euro 1.53% senior notes due October 2028
227,541 244,572 
Swiss franc 2.44% senior note due December 2021
 62,190 
Revolving credit facility borrowings314,480 72,145 
Other, principally foreign1,976 — 
Less: Debt issuance costs(5,919)(6,007)
Total debt, net2,544,241 2,413,725 
Less: Current portion, net(315,093)(132,284)
Total long-term debt, net$2,229,148 $2,281,441