Income Taxes (Schedule of Components of Income Tax Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Taxes [Abstract]
Income tax based on income from continuing operations, at estimated tax rates of 43.5% and 36.5%, respectively	$ (1,080)	$ 6,368	$ 7,956	$ 12,999
Provision for change in estimated tax rates	736	278
Income tax before discrete items	$ (344)	6,646	$ 7,956	$ 12,999
Provision for/adjustment to beginning of year valuation allowance		437		437
Provision for/resolution of tax audits and contingencies, net	$ 85	99	$ 168	979
Adjustments to prior period tax liabilities	$ (105)	$ 30	(60)	$ 254
Enacted tax legislation			$ 91
Other discrete tax adjustments, net		$ 4		$ 4
Total income tax expense/(benefit)	$ (364)	$ 7,216	$ 8,155	$ 14,673
Estimated tax rate			43.50%	36.50%