Commitments And Contingencies Commitments And Contingencies (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
Commitments and Contingencies Disclosure [Abstract] | |||
Operating Leases, Rent Expense | $ 21,614 | $ 19,760 | $ 17,210 |