Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2018

Payables and Accruals [Abstract]

Schedule of Accrued Liabilities

Accrued liabilities consist of:

(in thousands)	2018	2017
Salaries and wages	$20,821	$17,916
Accrual for compensated absences	10,636	11,223
Employee benefits	12,316	13,553
Workers' compensation	1,794	2,397
Pension liability - current portion	2,124	2,094
Postretirement medical benefits - current portion	3,890	4,108
Returns and allowances	11,343	11,370
Contract liabilities	9,025	-
Billings in excess of revenue recognized	-	2,569
Contract loss reserve	20,708	11,902
Professional fees	2,575	2,310
Utilities	974	910
Dividends	5,808	5,474
Restructuring costs	5,534	2,714
Interest	901	817
Other	20,581	16,557
Total	$129,030	$105,914