|
Commitments and Contingencies Leases (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
|
Sep. 30, 2012
|
Sep. 30, 2011
|
Sep. 30, 2012
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Sep. 30, 2011
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Dec. 31, 2011
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| Leased Assets [Line Items] | |||||
| Operating Leases, Rent Expense | $ 714 | $ 616 | $ 2,058 | $ 1,725 | |
| Deferred Rent Credit, Noncurrent | 284 | 284 | 346 | ||
|
Capital Lease Obligations [Member] | Minimum [Member]
|
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| Leased Assets [Line Items] | |||||
| Debt Instrument, Interest Rate, Stated Percentage | 1.80% | 1.80% | |||
|
Capital Lease Obligations [Member] | Maximum [Member]
|
|||||
| Leased Assets [Line Items] | |||||
| Debt Instrument, Interest Rate, Stated Percentage | 9.00% | 9.00% | |||
|
Capital Addition Purchase Commitments [Member] | Capital Lease Obligations [Member]
|
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| Leased Assets [Line Items] | |||||
| Debt Instrument, Face Amount | 3,100 | ||||
|
Maintenance and Support [Member]
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| Leased Assets [Line Items] | |||||
| Recorded Unconditional Purchase Obligation | $ 1,785 | $ 1,785 | $ 2,611 | ||