Stock Compensation and Share Repurchase Plan (Summary Of Outstanding Stock Options Issued Under All Plans) (Details) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding (in shares)	472	807	981	1,850
Weighted Avg Remaining Contractual Life	3 years 10 months 28 days
Options Outstanding, Weighted Avg. Exercise Price (in usd per share)	$ 14.58	$ 16.80	$ 16.17	$ 15.37
Options Exercisable (in shares)	437	676	627
Options Exercisable, Weighted Avg. Exercise Price	$ 14.78	$ 17.71	$ 18.86
$9.23 to $11.89
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Range of Exercise Prices, minimum (in usd per share)	9.23
Options Outstanding, Range of Exercise Prices, maximum (in usd per share)	$ 11.89
Options Outstanding (in shares)	217
Weighted Avg Remaining Contractual Life	4 years 3 months 7 days
Options Outstanding, Weighted Avg. Exercise Price (in usd per share)	$ 11.18
Options Exercisable (in shares)	217
Options Exercisable, Weighted Avg. Exercise Price	$ 11.18
$11.98 to $15.50
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Range of Exercise Prices, minimum (in usd per share)	11.98
Options Outstanding, Range of Exercise Prices, maximum (in usd per share)	$ 15.50
Options Outstanding (in shares)	180
Weighted Avg Remaining Contractual Life	4 years 9 months 11 days
Options Outstanding, Weighted Avg. Exercise Price (in usd per share)	$ 13.54
Options Exercisable (in shares)	145
Options Exercisable, Weighted Avg. Exercise Price	$ 13.90
$26.12 to $28.43
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Range of Exercise Prices, minimum (in usd per share)	26.12
Options Outstanding, Range of Exercise Prices, maximum (in usd per share)	$ 28.43
Options Outstanding (in shares)	75
Weighted Avg Remaining Contractual Life	9 months 18 days
Options Outstanding, Weighted Avg. Exercise Price (in usd per share)	$ 26.89
Options Exercisable (in shares)	75
Options Exercisable, Weighted Avg. Exercise Price	$ 26.89