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Commitments and Contingencies - Luri Matter (Details Textual 3) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
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Mar. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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Dec. 31, 2008
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May 19, 2011
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Sep. 24, 2008
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Jul. 03, 2008
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Aug. 17, 2007
Employees
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| Commitments and Contingencies [Line Items] | ||||||||||
| Number of discharge or demote employees (in employees) | 3 | |||||||||
| Total damage | $ 46.6 | |||||||||
| Punitive damages | 7.0 | 43.1 | ||||||||
| Pre-judgment interest | 0.3 | |||||||||
| Attorney fees and litigation costs | $ 1.1 | |||||||||
| Rate of post-judgment interest | 3.00% | 3.00% | 4.00% | 4.00% | 5.00% | 8.00% | ||||
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Minimum [Member]
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| Commitments and Contingencies [Line Items] | ||||||||||
| Age of employees discharged or demoted (in years old) | 50 | |||||||||