Commitments and Contingencies (Future Minimum Lease Payments And Future Minimum Income Receivable Under Non-Cancelable Operating Leases) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
2015, Lease Payments	$ 33,344
2016, Lease Payments	28,876
2017, Lease Payments	24,709
2018, Lease Payments	21,170
2019, Lease Payments	18,284
Thereafter, Lease Payments	57,720
Total, Lease Payments	184,103
2015, Sublease Income	647
2016, Sublease Income	455
2017, Sublease Income	254
2018, Sublease Income	80
2019, Sublease Income	13
Thereafter, Sublease	3
Total, Sublease Income	$ 1,452