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Employee Benefits - Additional Information (Detail) (USD $)
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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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Dec. 31, 2009
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401(k) Plan [Member]
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| Employee Benefit Plans [Line Items] | ||||
| Percent of participant contributions | 75.00% | |||
| Percent of employer contribution | 8.00% | |||
| Contributions | $ 1,000,000 | $ 1,000,000 | $ 992,000 | |
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Deferred compensation plan [Member]
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| Employee Benefit Plans [Line Items] | ||||
| Liabilities for the deferred compensation plan and interest | 0 | $ 6,000 | ||
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- Details
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- Definition
The carrying amount of the liability as of the balance sheet date to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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
Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. No definition available.
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- Definition
Maximum percentage of employee gross pay, by the terms of the plan, that the employer may contribute to a defined contribution plan. No definition available.
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