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Retirement Benefits (Schedule of estimated remaining cash contributions) (Details) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2012
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Pension Costs [Member] | United States Pension Plans of US Entity, Defined Benefit [Member] |
Contributions | $ 300
Pension Costs [Member] | United Kingdom Plan, Defined Benefit [Member] |
Contributions | 864
Pension Costs [Member] | Japan Plan, Defined Benefit [Member] |
Contributions | 0
Pension Costs [Member] | Switzerland Plan, Defined Benefit [Member] |
Contributions | 191
Other Postretirement Benefit Costs [Member] | Other Postretirement Benefit Plans, Defined Benefit [Member] |
Contributions | $ 3,417

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- Definition The employer's best estimate, as soon as it can be reasonably determined, of contributions expected to be paid to the plan in the current remaining fiscal period. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions. + References No definition available. + Details
Name: | us-gaap_DefinedBenefitPlanEstimatedFutureEmployerContributionsInCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant