|
Commitments and Contingencies Purchase Obligations (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2012
|
|---|---|
| Contractual Obligation, Fiscal Year Maturity Schedule [Abstract] | |
| Contractual Obligation, Due in Next Twelve Months | $ 21,131 |
| Contractual Obligation, Due in Second Year | 6,049 |
| Contractual Obligation, Due in Third Year | 735 |
| Contractual Obligation, Due in Fourth Year | 360 |
| Contractual Obligation, Due in Fifth Year | 0 |
| Contractual Obligation, Due after Fifth Year | 0 |
| Contractual Obligation | $ 28,275 |