Long-term Debt (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Schedule of Long-term Debt

	2016		2015
	In thousands
5.95% notes, due 2017	$	249,823	$	249,586
3.50% notes, due 2021	497,128		496,566
0.625% notes, due 2023	889,760		—
6.00% notes, due 2033	292,251		291,948
6.45% notes, due 2037	346,112		345,925
Capital leases	17,795		21,146
Total long-term debt	2,292,869		1,405,171
Less current portion	253,689		3,351
Long-term debt, due beyond one year	$	2,039,180	$	1,401,820

Payments of Long-term Debt and Future Minimum Lease Payments

The scheduled payments of long-term debt and future minimum lease payments for capital leases at the end of 2016 are summarized as follows:

	Notes and Other		Capital Leases		Total
	In thousands
2017	$	250,000	$	4,504	$	254,504
2018	—		4,504		4,504
2019	—		4,504		4,504
2020	—		4,504		4,504
2021	500,000		1,877		501,877
Thereafter	1,546,495		—		1,546,495
	2,296,495		19,893		2,316,388
Less unamortized debt discount	7,630		—		7,630
Less unamortized debt issuance costs	13,791		—		13,791
Less amounts representing interest	—		2,098		2,098
Total long-term debt	2,275,074		17,795		2,292,869
Less current portion	250,000		3,689		253,689
Long-term debt, due beyond one year	$	2,025,074	$	14,106	$	2,039,180