Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2017

Fair Value Disclosures [Abstract]

Carrying Value and Fair Value of Long-Term Debt

The following table sets forth carrying value and fair value of long-term debt:

	March 31, 2017				December 31, 2016
In thousands	Carrying Value		Fair Value		Carrying Value		Fair Value
Variable rate debt	$	100,000	$	100,000	$	61,595	$	61,595
Fixed-rate bonds		250,000		255,938		250,000		256,563
2.40% Term loan		8,018		8,207		8,282		8,877
2.05% Term loan		34,237		34,745		35,163		37,089
1.30% Term Loan		9,545		9,463		9,788		10,062
1.55% Term loan		10,480		10,402		10,333		10,082
Total	$	412,280	$	418,755	$	375,161	$	384,268