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Commitments and Contingencies (Details) | Mar. 31, 2017 lawsuit
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Commitments and Contingencies |
Number of purported securities class action lawsuits | 3
Number of purported securities class action lawsuits naming additional company officers as defendants | 1

X
- Definition Number of lawsuits commenced + References No definition available. + Details
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Namespace Prefix: | fold_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of lawsuit that list one or more of the entity's officers as named defendant(s) + References No definition available. + Details
Name: | fold_NumberOfLawsuitsNamingAdditionalOfficer
Namespace Prefix: | fold_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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