Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2016

Long-term Debt and Capital Lease Obligations [Abstract]

Schedule of Long-Term Debt

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

(in thousands, except interest rates)	June 30, 2016		December 31, 2015
Private placement with a fixed interest rate of 6.84%, due 2017	$50,000		$50,000
Credit agreement with borrowings outstanding at an end of period interest rate of 2.53% in 2016 and 2.27% in 2015 (including the effect of interest rate hedging transactions, as described below)	412,000		215,000
Various notes and mortgages relative to operations principally outside the United States, at an average end of period rate of 5.50% in 2016 and 2015, due in varying amounts through 2021	88		96
Obligation under capital lease, matures 2027	23,693		-
Long-term debt	485,781		265,096
Less: current portion	(566	)	(16	)
Long-term debt, net of current portion	$485,215		$265,080

Schedule of Future Minimum Annual Capital Lease Obilgations

The following schedule presents future minimum annual lease payments under the capitallease obligation and the present value of the minimum lease payments, as of June 30, 2016.

Years ending December 31,	(in thousands)
2016	$1,213
2017	2,425
2018	2,473
2019	2,473
2020	2,520
Thereafter	18,754
Total minimum lease payments	29,858
Less: Amount representing interest	6,165
Present value of minimum lease payments	$23,693