Schedule II - Valuation and Qualifying Accounts Schedule II Valuation and Qualifying Accounts (Notes)

12 Months Ended

Dec. 31, 2016

Valuation and Qualifying Accounts Disclosure [Line Items]

Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]

Schedule II -Valuation and Qualifying Accounts

The roll forward of valuation accounts were as follows:

	(Dollars in thousands)
Description	Balance at Beginning of Period		Charged to Costs and Expenses			Deductions				Balance at End of Period
Allowance for doubtful accounts:
Year ended December 31, 2016	$	543	$	361		$	(450	)	(1)	$	454
Year ended December 31, 2015	733		353			(543		)	(1)	543
Year ended December 31, 2014	828		715			(810		)	(1)	733
Valuation allowance for deferred tax assets:
Year ended December 31, 2016	$	36,516	$	(1,100	)	$	—			$	35,416
Year ended December 31, 2015	36,675		(159		)	—				36,516
Year ended December 31, 2014	35,834		841			—				36,675

(1) Uncollected receivables written off, net of recoveries and translation adjustments.