Other Long-term Liabilities

12 Months Ended

Dec. 31, 2017

Other Liabilities Disclosure [Abstract]

Other Long-Term Liabilities

OTHER LONG-TERM LIABILITIES

Other long-term liabilities consist of the following:

	At December 31,
	2017		2016
In thousands
Supplemental employees' retirement plan ("SERP")	$	6,954	$	6,998
Deferred compensation	15,862		15,238
Long-term incentive plan	9,475		8,346
Noncurrent income taxes payable	3,363		2,903
Environmental remediation liability	2,602		3,763
Capital leases	4,985		2,588
Other	3,657		5,080
Total	$	46,898	$	44,916

The Company maintains a non-qualified deferred compensation plan for certain of its employees as well as a non-qualified deferred compensation plan for its Board of Directors. Generally, participants in these plans have the ability to defer a certain amount of their compensation, as defined in the agreement. The deferred compensation liability will be paid out either upon retirement or as requested based upon certain terms in the agreements and in accordance with Internal Revenue Code Section 409A.

Disclosures regarding the assumptions used in the determination of the SERP liabilities are included in Note 13, Pension Plans. Discussions of our environmental remediation liabilities are in Note 9, Environmental Costs, and Note 15, Commitments and Contingencies.