Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 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:

	June 30, 2018				December 31, 2017
In thousands	Carrying Value		Fair Value		Carrying Value		Fair Value
Variable rate debt	$	217,860	$	217,860	$	171,200	$	171,200
Fixed-rate bonds		250,000		252,375		250,000		253,823
2.40% Term loan		6,661		6,813		7,710		7,889
2.05% Term loan		29,556		30,032		33,607		34,122
1.30% Term Loan		8,327		8,302		9,423		9,370
1.55% Term loan		10,356		10,323		11,390		11,320
Total	$	522,760	$	525,705	$	483,330	$	487,724