Postretirement Benefits (Estimated Benefit Payments) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012
Postretirement Benefits [Abstract]
Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months	$ 0.2
Defined Benefit Plan, Expected Future Benefit Payments, Year Two	0.2
Defined Benefit Plan, Expected Future Benefit Payments, Year Three	0.2
Defined Benefit Plan, Expected Future Benefit Payments, Year Four	0.3
Defined Benefit Plan, Expected Future Benefit Payments, Year Five	0.3
Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter	$ 1.3

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Amount of benefits expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year from a defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (f)

-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

+ Details

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- Definition

Amount of benefits expected to be paid in the next fiscal year following the latest fiscal year from a defined benefit plan.

+ References

+ Details

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- Definition

Amount of benefits expected to be paid in the fifth fiscal year following the latest fiscal year from a defined benefit plan.

+ References

+ Details

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- Definition

Amount of benefits expected to be paid in the fourth fiscal year following the latest fiscal year from a defined benefit plan.

+ References

+ Details

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- Definition

Amount of benefits expected to be paid in the third fiscal year following the latest fiscal year from a defined benefit plan.

+ References

+ Details

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- Definition

Amount of benefits expected to be paid in the second fiscal year following the latest fiscal year from a defined benefit plan.

+ References

+ Details

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