Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Income Tax Disclosure [Line Items]
Unrepatriated foreign earnings	$ 3,700
Net increase from the reevaluation of uncertain tax positions arising in examinations	100
Net decrease from the reevaluation of uncertain tax positions arising in examinations	$ 200
Estimated effective tax rate on continuing operations	36.40%	37.50%
Income Tax Expense Benefit Estimated Tax Rate	36.40%	37.50%
Non-U.S. earnings that have been targeted for future repatriation	$ 62,800
Canada [Member]
Income Tax Disclosure [Line Items]
Deferred tax assets	3,400
Japan [Member]
Income Tax Disclosure [Line Items]
Deferred tax assets	$ 400
Earliest Tax Year [Member]
Income Tax Disclosure [Line Items]
Open tax years	2007
Latest Tax Year [Member]
Income Tax Disclosure [Line Items]
Open tax years	2016