Other Long-Term Liabilities (Tables)

12 Months Ended

Dec. 31, 2016

Other Liabilities Disclosure [Abstract]

Schedule of other long-term liabilities

Other long-term liabilities consist of the following:

	At December 31,
	2016		2015
In thousands
Supplemental employees' retirement plan ("SERP")	$	6,998	$	9,654
Deferred compensation	15,238		16,244
Long-term incentive plan	8,346		7,973
Noncurrent income taxes payable	2,903		2,672
Environmental remediation liability	3,763		9,307
Other	7,668		5,577
Total	$	44,916	$	51,427