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Fair Value of Financial Instruments (Tables)
 12 Months Ended
Dec. 31, 2021
Fair Value Disclosures [Abstract]  
Carrying Value and Fair Value of Long-Term Debt The following table sets forth the carrying value and fair value of long-term debt as of December 31:
20212020
In thousandsCarrying
Value		Fair
Value		Carrying
Value		Fair
Value
Variable rate debt$10,000 $10,000 $36,813 $36,813 
4.750% Senior Notes, due Oct. 2029
500,000 516,875 — — 
Term loan, due Feb. 2024218,026 218,026 249,715 249,715 
2.40% Term Loan
809 813 2,629 2,651 
2.05% Term Loan
7,556 7,616 14,737 14,873 
1.30% Term Loan
2,427 2,433 4,382 4,384 
1.55% Term Loan
5,204 5,234 7,143 7,210 
1.10% Term Loan
9,267 9,252 — — 
0.57% DZ Bank
22,652 22,657 — — 
Total$775,941 $792,906 $315,419 $315,646