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401(k) Plan and Profit Sharing Plan (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
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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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| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | |||
| Vesting period for profit sharing | 2Y | ||
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401(k) [Member]
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| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | |||
| Defined contribution plan expense | $ 4,900 | $ 4,600 | $ 4,300 |
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Profit Sharing Plan [Member]
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| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | |||
| Defined contribution plan expense | $ 217 | $ 360 | $ 270 |
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- Details
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- Definition
The amount of the cost recognized during the period for defined contribution plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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