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12. Commitments & Contingent Liabilities Period Expense (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Commitments and Contingencies Disclosure [Abstract]
Operating Leases, Rent Expense, Net	$ 46.9us-gaap_OperatingLeasesRentExpenseNet	$ 45.5us-gaap_OperatingLeasesRentExpenseNet	$ 41.4us-gaap_OperatingLeasesRentExpenseNet
Contribution expense	$ 13.7us-gaap_DeferredCompensationArrangementWithIndividualEmployerContribution	$ 13.5us-gaap_DeferredCompensationArrangementWithIndividualEmployerContribution	$ 12.1us-gaap_DeferredCompensationArrangementWithIndividualEmployerContribution

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- Details

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X

- Definition

The amount of payment into the fund established for purposes of making future disbursements to the individual in accordance with the terms and understanding of the deferred compensation arrangement.

+ References

No definition available.

+ Details

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- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

+ Details

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