Summary of Material Accounting Policies - Stockholders Equity - Additional Information (Details)	12 Months Ended
Dec. 31, 2023
Notes and other explanatory information [abstract]
Vesting period requirements for share-based performance shares	4 years

Vesting Requirements For Share-Based Payment Arrangement, Vesting Period

No definition available.

Name:	mor_VestingRequirementsForShareBasedPaymentArrangementVestingPeriod
Namespace Prefix:	mor_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration