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Business concentrations - Summary Of The Vendors With Product Purchases For The Periods (Details) | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Catalent [Member] |  |
Disclosure Of Vendors With Product Purchases and Accounts Payable For The Periods [Line Items] |  |
Concentration Risk, Percentage | 29.00% | 24.00%
Vendor A [Member] |  |
Disclosure Of Vendors With Product Purchases and Accounts Payable For The Periods [Line Items] |  |
Concentration Risk, Percentage | 33.00% | 28.00%
Vendor B [Member] |  |
Disclosure Of Vendors With Product Purchases and Accounts Payable For The Periods [Line Items] |  |
Concentration Risk, Percentage | 32.00% | 32.00%
Vendor C [Member] |  |
Disclosure Of Vendors With Product Purchases and Accounts Payable For The Periods [Line Items] |  |
Concentration Risk, Percentage |  | 13.00%
Vendor D [Member] | Accounts Payable [Member] |  |
Disclosure Of Vendors With Product Purchases and Accounts Payable For The Periods [Line Items] |  |
Concentration Risk, Percentage | 19.00% |
Vendor E [Member] | Accounts Payable [Member] |  |
Disclosure Of Vendors With Product Purchases and Accounts Payable For The Periods [Line Items] |  |
Concentration Risk, Percentage |  | 17.00%
Vendor F [Member] | Accounts Payable [Member] |  |
Disclosure Of Vendors With Product Purchases and Accounts Payable For The Periods [Line Items] |  |
Concentration Risk, Percentage |  | 16.00%
Vendor G [Member] | Accounts Payable [Member] |  |
Disclosure Of Vendors With Product Purchases and Accounts Payable For The Periods [Line Items] |  |
Concentration Risk, Percentage |  | 10.00%

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- Definition Disclosure of vendors with product purchases for the periods. + References No definition available. + Details
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13531-108611 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13537-108611 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592 + Details
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