Schedule Of Unrecognized Compensation Cost Nonvested Awards (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 3,839
Remaining weighted-average amortization period	2 years 2 months 12 days
Restricted Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	2,166
Remaining weighted-average amortization period	1 year 9 months 18 days
Restricted Stock Units And Phantom Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	4,081
Remaining weighted-average amortization period	2 years 9 months 18 days
Performance Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 1,565
Remaining weighted-average amortization period	2 years 2 months 12 days