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Pension Plans (Details 6) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Plan net pension charge
Net pension charge	$ (0.3)	$ 0.5	$ 10.8
German Plan [Member]
Plan net pension charge
Service cost	0.1	0.2	0.1
Interest cost on PBO	0.3	0.3	0.3
Net pension charge	$ 0.4	$ 0.5	$ 0.4
German Plan assumptions (%):
Discount rate	3.25%	5.00%	5.00%
Inflation rate	2.00%	2.00%	2.00%
Rate of increase in compensation levels	2.75%	2.75%	2.75%

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- Definition

Defined benefit plan assumptions used calculating net periodic benefit cost inflation rate.

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The interest rate used to adjust for the time value of money.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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- Definition

Expected rate of compensation increases (for pay-related plans).

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- Definition

The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

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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.

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- Definition

The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

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