Income Taxes (Schedule of Components of Income Tax (Benefit)/Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income tax based on income from continuing operations, at estimated tax rates of 35%, 32%, and 34%, respectively	$ 27,629	$ 16,388	$ 25,703
Pension plan settlements			(3,194)
Income tax before discrete items	27,629	16,388	22,509
Discrete tax (benefit)/expense:
Worthless stock deduction		(28,553)
Repatriation of non-U.S. prior years' earnings			2,210
Provision for/resolution of tax audits and contingencies, net	(2,856)	6,500	744
Adjustments to prior period tax liabilities	769	(867)	397
Provision for/adjustment to beginning of year valuation allowances	(88)	75	(109)
Enacted tax legislation		670
Other discrete tax adjustments, net
Total income tax (benefit)/expense	$ 25,454	$ (5,787)	$ 25,751
Estimated tax rate	35.00%	32.00%	34.00%