XML 34 R25.htm IDEA: XBRL DOCUMENT v3.22.1

Coronavirus Pandemic (COVID-19) - Additional Information (Detail) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
COVID-19 [Member]
Proceeds From Contribution In Aid Of Reimbursement of Lost Revenue	$ 10.4	$ 26.1

X

- Definition

Proceeds From Contribution In Aid Of Reimbursement of Lost Revenue.

+ References

No definition available.

+ Details

Name:	md_ProceedsFromContributionInAidOfReimbursementOfLostRevenue
Namespace Prefix:	md_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	md_ExtraordinaryItemsAxis=md_CovidNinenteenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: