Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 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:

	June 30, 2017				December 31, 2016
In thousands	Carrying Value		Fair Value		Carrying Value		Fair Value
Variable rate debt	$	130,000	$	130,000	$	61,595	$	61,595
Fixed-rate bonds		250,000		256,623		250,000		256,563
2.40% Term loan		8,151		8,349		8,282		8,877
2.05% Term loan		35,023		35,570		35,163		37,089
1.30% Term Loan		9,781		9,712		9,788		10,062
1.55% Term loan		11,187		11,103		10,333		10,082
Total	$	444,142	$	451,357	$	375,161	$	384,268