Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2014

Financial Instruments [Abstract]

Schedule of Long-Term Debt

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

(in thousands, except interest rates)	March 31, 2014		December 31, 2013
Private placement with a fixed interest rate of 6.84%, due 2015 through 2017	$100,000		$100,000
Credit agreement with borrowings outstanding at an end of period interest rate of 2.53% in 2014 and 2013 (including the effect of interest rate hedging transactions, as described below), due in 2018	199,000		200,000
Various notes and mortgages relative to operations principally outside the United States, at an average end of period rate of 3.14% in 2014 and 3.10% in 2013, due in varying amounts through 2021	2,622		3,875
Long-term debt	301,622		303,875
Less: current portion	(2,514	)	(3,764	)
Long-term debt, net of current portion	$299,108		$300,111