XML 49 R40.htm IDEA: XBRL DOCUMENT
v3.21.1

Shareholders’ Equity - Ordinary Shares (Details) | Jun. 26, 2018 USD ($) | Mar. 31, 2021 $ / shares shares | Mar. 31, 2021 £ / shares shares | Dec. 31, 2020 $ / shares shares | Dec. 31, 2020 £ / shares shares
--- | --- | --- | --- | --- | ---
Class of Stock |  |  |  |  |
Authorized grant, life | 5 years |  |  |  |
Ordinary shares |  |  |  |  |
Class of Stock |  |  |  |  |
Maximum nominal shares authorized for grant | $ | $ 8,400 |  |  |  |
Shares issued |  | 70,515,354 | 70,515,354 | 52,346,231 | 52,346,231
Stock par value (usd/gbp per share) | $ / shares |  | $ 0.000042 |  | $ 0.000042 |
Deferred Shares |  |  |  |  |
Class of Stock |  |  |  |  |
Shares issued |  | 34,425 | 34,425 | 34,425 | 34,425
Stock par value (usd/gbp per share) | £ / shares |  |  | £ 0.00001 |  | £ 0.00001
Deferred B Shares |  |  |  |  |
Class of Stock |  |  |  |  |
Shares issued |  | 88,893,548 | 88,893,548 | 88,893,548 | 88,893,548
Stock par value (usd/gbp per share) | £ / shares |  |  | £ 0.00099 |  | £ 0.00099
Deferred C Shares |  |  |  |  |
Class of Stock |  |  |  |  |
Shares issued |  | 1 | 1 | 1 | 1
Stock par value (usd/gbp per share) | £ / shares |  |  | £ 0.000008 |  | £ 0.000008

X
- Definition Authorized Grant, Life + References No definition available. + Details
Name: | autl_AuthorizedGrantLife
Namespace Prefix: | autl_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum Nominal Amount Of Shares Authorized For Grant + References No definition available. + Details
Name: | autl_MaximumNominalAmountOfSharesAuthorizedForGrant
Namespace Prefix: | autl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ClassOfStockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Face amount or stated value per share of common stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_CommonStockParOrStatedValuePerShare
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_CommonStockSharesIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=autl_OrdinarySharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=autl_DeferredClassASharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=autl_DeferredClassBSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=autl_DeferredClassCSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |