v3.24.0.1
Summary of significant accounting policies - Revenue Recognition (Details)
12 Months Ended
Dec. 31, 2023
Accounting Policies [Abstract]
Billing term
30 days
X
- Definition
Period over which entity receives payment upon billing.
+ References
No definition available.
+ Details
Name:
mrsn_RevenueCollectionPeriod
Namespace Prefix:
mrsn_
Data Type:
xbrli:durationItemType
Balance Type:
na
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
us-gaap_AccountingPoliciesAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration