Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2019

Debt Disclosure [Abstract]

Schedule of Long-Term Debt

Long-term debt, principally to banks and noteholders, consists of:

(in thousands, except interest rates)	June 30, 2019	December 31, 2018
Revolving credit agreement with borrowings outstanding at an end of period interest rate of 3.57% in 2019 and 3.69% in 2018 (including the effect of interest rate hedging transactions, as described below), due in 2022	$482,000	$499,000
Finance obligation	—	25,886
Other debt, at an average end of period rate of 5.50% in both 2019 and 2018, due in varying amounts through 2021	38	45
Long-term debt	482,038	524,931
Less: current portion	(19)	(1,224)
Long-term debt, net of current portion	$482,019	$523,707