Income Taxes Income Tax (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Valuation Allowance [Line Items]
Provision for income taxes	$ 10,928	$ 8,586	$ 25,587	$ 10,188
Deferred tax asset valuation allowances			$ 0	$ 9,291
Effective Income Tax Rate Reconciliation, Percent	41.20%	38.70%	39.90%	20.40%