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Pension Plans and Other Postretirement Benefits - Domestic and Foreign Pension and Postretirement Defined Benefit Plans (Footnote) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
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Sep. 30, 2016 | Sep. 30, 2016
Retirement Benefits [Abstract] |  |
Net pension and postretirement benefits cost | $ 3.7 | $ 4.9

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- Definition Disposal Group, Including Discontinued Operation, Net Pension and Postretirement Benefits Cost (Credit) + References No definition available. + Details
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Namespace Prefix: | alb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration