Fair Value of Financial Instruments and Concentrations of Credit Risk (Tables)

12 Months Ended

Dec. 31, 2016

Fair Value Disclosures [Abstract]

Schedule of accounts receivable

Accounts receivable at December 31, 2016 and 2015 include the following:

(In thousands)	2016			2015
Gross trade receivables	$	162,569		$	159,119
Allowance for doubtful accounts	(8,849		)	(7,189		)
Net trade receivables	153,720			151,930
Income tax receivables	39,944			32,600
Other receivables	20,643			21,834
Total receivables, net	$	214,307		$	206,364

Schedule of allowance for doubtful accounts

Changes in this allowance for 2016, 2015 and 2014 related to continuing operations, was as follows:

(In thousands)	2016			2015			2014
Balance at beginning of year	$	7,189		$	5,458		$	4,142
Provision for uncollectible accounts	2,416			1,886			1,246
Write-offs, net of recoveries	(756		)	(155		)	70
Balance at end of year	$	8,849		$	7,189		$	5,458