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Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Tables) | 3 Months Ended
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Mar. 31, 2019
Accounting Policies [Abstract] |
Disaggregation of Revenue | The following table summarizes the Company's net product sales from Galafold® disaggregated by geographic area:
| Three Months Ended March 31,
(in thousands) | 2019 |  | 2018
U.S. | $ | 9,068 |  |  | $ | — |
Ex-U.S. | 24,978 |  |  | 16,696 |
Total net product sales | $ | 34,046 |  |  | $ | 16,696 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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