Debt (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Debt

Debt comprised the following at December 31, 2016 and 2015:

(In thousands)	Maturity Dates	December 31, 2016		December 31, 2015 (1)
Unsecured private placement notes
3.95% (net of unamortized debt issuance cost of     $382 and $383 for 2016 and 2015, respectively)	2021-2027	$	99,618	$	99,617
3.86% (net of unamortized debt issuance cost of     $390 and $440 for 2016 and 2015, respectively)	2019-2025		99,610		99,560
4.86% (net of unamortized debt issuance cost of     $225 and $260 for 2016 and 2015, respectively)	2017-2023		64,775		64,740
5.88% (net of unamortized debt issuance cost of     $116 and $140 for 2016 and 2015, respectively)	2017-2022		34,170		39,860
5.69% (net of unamortized debt issuance cost of     $28 and $46 for 2016 and 2015, respectively)	2017-2018		11,400		17,096
Debt of foreign subsidiaries
Unsecured bank debt, foreign currency	2017		432		4,810
Unsecured bank term loan, foreign currency	2021		—		3,724
Secured bank debt, foreign currency	2017		7,008		1,947
Total debt		$	317,013	$	331,354
Less current maturities			28,154		18,806
Long-term debt		$	288,859	$	312,548

Schedule of Net Interest Expense

Net interest expense for the years ended December 31, 2016, 2015 and 2014, comprised the following:  

(In thousands)	2016			2015			2014
Interest expense	$	15,240		$	15,488		$	12,542
Interest income		(1,247	)		(217	)		(262	)
		13,993			15,271			12,280
Capitalized interest		(788	)		(738	)		(839	)
Interest expense, net	$	13,205		$	14,533		$	11,441