|
Streamlining and Restructuring Charges (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
|
Mar. 31, 2013
|
Mar. 31, 2012
|
Dec. 31, 2012
|
|
| Restructuring Cost and Reserve [Line Items] | |||
| Number of positions eliminated | 84 | ||
| Number of positions eliminated (in hundredths) | 34.00% | ||
| Number of positions eliminated immediately | 52 | ||
| Restructuring charges | $ 17 | $ 3,777 | |
|
Employee Severance and Other Benefits [Member]
|
|||
| Restructuring Cost and Reserve [Line Items] | |||
| Restructuring charges | 2,100 | ||
|
Asset Impairment and Accelerated Depreciation [Member]
|
|||
| Restructuring Cost and Reserve [Line Items] | |||
| Restructuring charges | $ 1,700 | ||