Fair Value of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2018

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:

	September 30, 2018				December 31, 2017
In thousands	Carrying Value		Fair Value		Carrying Value		Fair Value
Variable rate debt	$	345,962	$	345,962	$	171,200	$	171,200
Fixed-rate bonds		250,000		250,633		250,000		253,823
2.40% Term loan		6,201		6,332		7,710		7,889
2.05% Term loan		27,802		28,206		33,607		34,122
1.30% Term Loan		7,855		7,825		9,423		9,370
1.55% Term loan		9,928		9,874		11,390		11,320
Total	$	647,748	$	648,832	$	483,330	$	487,724