XML 31 R20.htm IDEA: XBRL DOCUMENT
v3.23.1

COVID-19 pandemic | 3 Months Ended
--- | ---
Mar. 31, 2023
Risks and Uncertainties [Abstract] |
COVID-19 Pandemic | Note 14. COVID-19 pandemic The current COVID-19 pandemic, which is impacting worldwide economic activity, poses the risk that the Company or its employees, contractors, suppliers, and other partners may be prevented from conducting business activities for an indefinite period of time, including due to shutdowns that may be requested or mandated by governmental authorities. During the three months ended March 31, 2023 and 2022, the Company has not experienced significant impact from the pandemic. The extent to which the COVID-19 pandemic will impact the Company’s business will depend on future developments that are highly uncertain and cannot be predicted at this time.

X
- Definition COVID-19 pandemic. + References No definition available. + Details
Name: | eras_COVID19PandemicTextBlock
Namespace Prefix: | eras_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_RisksAndUncertaintiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration