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Revenue recognition (Tables) | 3 Months Ended
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Mar. 31, 2023
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | The Company's revenues disaggregated by the major sources were as follows:
| Three Months Ended March 31, 2023 |  | Three Months Ended March 31, 2022
| USG |  | Non-USG |  | Total |  | USG |  | Non-USG |  | Total
Product sales, net | $ | 26.1 |  |  | $ | 117.3 |  |  | $ | 143.4 |  |  | $ | 103.4 |  |  | $ | 133.7 |  |  | $ | 237.1 |
CDMO: |  |  |  |  |  |  |  |  |  |  |
Services | — |  |  | 13.4 |  |  | 13.4 |  |  | — |  |  | 51.8 |  |  | 51.8 |
Leases | — |  |  | 1.8 |  |  | 1.8 |  |  | — |  |  | 9.0 |  |  | 9.0 |
Total CDMO | $ | — |  |  | $ | 15.2 |  |  | $ | 15.2 |  |  | $ | — |  |  | $ | 60.8 |  |  | $ | 60.8 |
Contracts and grants | 4.9 |  |  | 1.6 |  |  | 6.5 |  |  | 9.1 |  |  | 0.5 |  |  | 9.6 |
Total revenues | $ | 31.0 |  |  | $ | 134.1 |  |  | $ | 165.1 |  |  | $ | 112.5 |  |  | $ | 195.0 |  |  | $ | 307.5 |
Rollforward of Contract Liabilities | The following table presents the roll forward of the contract liability balances:
|  | Contract Liabilities
Balance at December 31, 2022 |  | $ | 31.7 |
Deferral of revenue |  | 5.0 |
Revenue recognized |  | (18.7) |
Balance at March 31, 2023 |  | $ | 18.0 |
Schedule of Accounts Receivable, Net | Accounts receivable, including unbilled accounts receivable contract assets, consist of the following:
|  | March 31, 2023 |  | December 31, 2022
Accounts receivable: |  |  |  |
Billed |  | $ | 106.5 |  |  | $ | 102.7 |
Unbilled |  | 49.8 |  |  | 56.4 |
Allowance for expected credit losses |  | (0.4) |  |  | (0.7) |
Accounts receivable, net |  | $ | 155.9 |  |  | $ | 158.4 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130551-203045 + Details
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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://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045 + Details
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