XML 78 R66.htm IDEA: XBRL DOCUMENT
v3.25.3

Shareholders' equity (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  | 9 Months Ended
--- | --- | --- | ---
Jun. 16, 2025 | Jun. 11, 2025 | Sep. 30, 2025 | Sep. 30, 2024
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Proceeds from the sale of common shares, net of transaction costs |  |  | $ 42,760 | $ 60,506
Issuance of warrants, underwritten offering, net of transaction costs |  | $ 50,800 | $ 50,760 | $ 36,925
2025 Private Placement |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Sale of stock, issued (in shares) |  | 13,031,161 |  |
Sale of stock, price (in dollars per share) |  | $ 3.43 |  |
Sale of stock, amount | $ 100,000 |  |  |
Sale of stock, transaction costs | 6,900 |  |  |
Proceeds from the sale of common shares, net of transaction costs | $ 93,100 |  |  |
Additional paid in capital |  | $ 42,400 |  |
2025 Private Placement | Common Stock |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Sale of stock, price (in dollars per share) |  | $ 3.53 |  |
2025 Private Placement | 2025 Pre-Funded Warrant |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Sale of stock, issued (in shares) |  | 15,734,267 |  |

X
- Definition Sale Of Stock, Transaction Costs + References No definition available. + Details
Name: | adc_SaleOfStockTransactionCosts
Namespace Prefix: | adc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(30)(a)(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_AdditionalPaidInCapitalCommonStock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of increase in additional paid in capital (APIC) resulting from the issuance of warrants. Includes allocation of proceeds of debt securities issued with detachable stock purchase warrants. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 25 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481284/470-20-25-2 + Details
Name: | us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 14 -Subparagraph (a) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-14 + Details
Name: | us-gaap_ProceedsFromIssuanceOfCommonStock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Cash received on stock transaction after deduction of issuance costs. + References No definition available. + Details
Name: | us-gaap_SaleOfStockConsiderationReceivedOnTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of shares issued or sold by the subsidiary or equity method investee per stock transaction. + References No definition available. + Details
Name: | us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. + References No definition available. + Details
Name: | us-gaap_SaleOfStockPricePerShare
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
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_SubsidiarySaleOfStockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=adc_A2025PrivatePlacementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=adc_A2025PreFundedWarrantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |