Additional Notes - Carrying Amount of Financial Instruments (Details) - EUR (€) € in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financial instruments [Line Items]
Financial Assets FVTPL	€ 239,406	€ 24,454
Financial Assets AC	477,795	985,107
Financial Liabilities FLAC	€ (1,824,607)	€ (2,053,071)

The amount of current financial assets measured at amortised cost. [Refer: Financial assets at amortised cost]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2023-01-01
-Paragraph 8
-Subparagraph f
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_8_f&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_CurrentFinancialAssetsAtAmortisedCost
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of current financial assets measured at fair value through profit or loss. [Refer: Financial assets at fair value through profit or loss]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2023-01-01
-Paragraph 8
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_8_a&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLoss
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of current financial liabilities measured at amortised cost. [Refer: Financial liabilities at amortised cost]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2023-01-01
-Paragraph 8
-Subparagraph g
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_8_g&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_CurrentFinancialLiabilitiesAtAmortisedCost
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Financial instruments [Line Items]

+ References

No definition available.

+ Details

Name:	mor_FinancialInstrumentsLineItems
Namespace Prefix:	mor_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration