XML 54 R43.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Coronavirus Pandemic ("COVID")-19 and the CARES Act - Additional Information (Detail) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Line of credit remaining borrowing capacity | $ 450,000 |  |
Letters of Credit [Member] |  |  |
Letters of credit | $ 0 |  |
COVID-19 [Member] |  |  |
Proceeds From Contribution In Aid Of Reimbursement of Lost Revenue |  | $ 13,300 | $ 26,100

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
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | md_ExtraordinaryItemsAxis=md_CovidNinenteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |