Employee Benefit Plans - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
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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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Defined Benefit Plan Disclosure [Line Items] | |||
Employee benefits expenses | $ 11.8 | $ 12.6 | $ 10.9 |
Maximum 401(k) plan contribution rates as a percentage of employees earnings | 100.00% | ||
Maximum employers 401(k) contribution to employee | 6.00% | ||
Postretirement Medical Plan
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Defined Benefit Plan Disclosure [Line Items] | |||
Net periodic benefit cost | 0.1 | 0.1 | 0.1 |
Retirement Plan
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Defined Benefit Plan Disclosure [Line Items] | |||
Lump-sum cash payments to terminate Non-Qualified plan | 10.4 | ||
Net periodic benefit cost | 0.1 | 0.8 | |
Compensation and benefits expenses related to settlement of all Non-Qualified Plan liabilities | $ 0.2 |
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- Definition
Employer 401(k) Matching Contribution to Employee, Maximum No definition available.
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- Definition
Maximum 401(k) Plan Contribution Rates as a Percentage of Employees Earnings No definition available.
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- Details
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- Definition
The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of net gain (loss) recognized in net periodic benefit cost as a result of an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include (a) making lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and (b) purchasing nonparticipating annuity contracts to cover vested benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount that relates to an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include (a) making lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and (b) purchasing nonparticipating annuity contracts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of pension and other (such as medical, dental and life insurance) postretirement benefit costs recognized during the period for (1) defined benefit plans (periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss) on assets, prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments) and for (2) defined contribution plans (to the extent that a plan's defined contributions to an individual's account are to be made for periods in which that individual renders services, the net cost for a period is the contribution called for in that period; if a plan calls for contributions for periods after an individual retires or terminates, the estimated cost is accrued during the employee's service period). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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