Net Income Per Share (Reconciliation Between Basic And Diluted Weighted Average Shares Outstanding) (Details) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Basic weighted average shares outstanding	72,043	71,568	71,910	71,430
Diluted weighted average shares outstanding	72,802	72,643	72,343	72,613
Stock Options [Member]
Incremental Common Shares Attributable to Share-based Payment Arrangements	231	294	120	314
Restricted Shares/Units [Member]
Incremental Common Shares Attributable to Share-based Payment Arrangements	528	781	313	869