XML
43
R32.htm
IDEA: XBRL DOCUMENT
v3.8.0.1
Investments - Additional Information (Detail)
3 Months Ended
Mar. 31, 2018
Investments [Abstract]
Maximum maturity days for cash equivalents
90 days
X
- Definition
Cash equivalents original maturity maximum period.
+ References
No definition available.
+ Details
Name:
mcrb_CashEquivalentsOriginalMaturityMaximumPeriod
Namespace Prefix:
mcrb_
Data Type:
xbrli:durationItemType
Balance Type:
na
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
us-gaap_InvestmentsAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration