Income Taxes (Components Of Income Tax Expense) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Taxes [Abstract]
Income tax expense	$ 8,015	$ 10,034	$ 13,788	$ 16,014
Effective tax rate	37.40%	40.50%	37.60%	40.10%