Face (par) amount of debt instrument at time of issuance with accordion option maximum additional lender commitments.

No definition available.

Name:	adc_DebtInstrumentAccordionOptionAdditionalLenderCommitmentsMaximum
Namespace Prefix:	adc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Adjustment to variable rate.

+ References

No definition available.

+ Details

Name:	adc_DebtInstrumentVariableRateAdjustment
Namespace Prefix:	adc_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The loss amount to be reimbursed per a contract

+ References

No definition available.

+ Details

Name:	adc_ReimbursementAgreementAmount
Namespace Prefix:	adc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The value of the assets available to satisfy obligations under a credit facility.

+ References

No definition available.

+ Details

Name:	adc_ReimbursementAgreementDebtCovenantAssetsValue
Namespace Prefix:	adc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Variable Rate Adjustment to Secured Overnight Financing Rate.

+ References

No definition available.

+ Details

Name:	adc_VariableRateAdjustmentToSfor
Namespace Prefix:	adc_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 835
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-Name Accounting Standards Codification
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+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateEffectivePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=adc_SeniorUnsecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
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Debt - Senior Unsecured Revolving Credit Facility (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Nov. 30, 2022	Mar. 31, 2024	Dec. 31, 2023	Nov. 18, 2014
Unsecured Revolving Credit Facility		$ 330,000	$ 227,000
Maximum
Reimbursement Agreement, Amount				$ 14,000
Reimbursement Agreement, Debt Covenant, Assets Value				$ 14,000
Revolving Credit Facility [Member]
Unsecured Revolving Credit Facility		$ 330,000
Senior Unsecured Debt [Member] \| Revolving Credit Facility [Member]
All-in Interest Rate		6.19%
Unsecured Revolving Credit Facility		$ 330,000	$ 227,000
Debt Instrument, Accordion Option Additional Lender Commitments, Maximum		$ 1,750,000
Senior Unsecured Debt [Member] \| Revolving Credit Facility [Member] \| Term SOFR
Debt Instrument, Face Amount	$ 1,000,000
Variable rate	0.10%
Spread on variable rate		0.765%
SOFR adjustment		0.10%
All-in Interest Rate		5.32%
Senior Unsecured Debt [Member] \| Revolving Credit Facility [Member] \| Term SOFR \| Minimum
Spread on variable rate	0.725%
Senior Unsecured Debt [Member] \| Revolving Credit Facility [Member] \| Term SOFR \| Maximum
Spread on variable rate	1.40%