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Convertible Senior Notes (Tables) | 9 Months Ended
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Sep. 30, 2019
Convertible Debt | The net carrying value of the liability component of the 2019 Notes is as follows (amounts in thousands, except percentages):
|  | September 30, |
|  | 2019 |
0.375% Convertible Senior Notes due July 15, 2024 |  | $ | 287,500 |
Less: u namortized debt discount |  |  | (50,247 | )
Less: u namortized debt issuance costs |  |  | (7,071 | )
Total debt |  |  | 230,182 |
Less: c urrent portion |  |  | — |
Net carrying amount |  | $ | 230,182 |
Convertible Notes Equity Component | The net carrying value of the equity component of the 2019 Notes is as follows (amounts in thousands, except percentages):
|  | September 30, |
|  | 2019 |
Proceeds allocated to the conversion feature |  | $ | 52,062 |
Less: transaction costs allocated to the conversion feature |  |  | (1,621 | )
Less: deferred taxes |  |  | ( 12,353 | )
Net carrying value |  | $ | 38,088 |

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- Definition Tabular disclosure of equity component of convertible notes. + References No definition available. + Details
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Namespace Prefix: | rgen_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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- Definition Tabular disclosure of borrowings which can be exchanged for a specified number of another security at the option of the issuer or the holder. Disclosures include, but are not limited to, principal amount, amortized premium or discount, and amount of liability and equity components. + References No definition available. + Details
Name: | us-gaap_ConvertibleDebtTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration