XML 63 R45.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Accounts Receivable and Net Revenue - Schedule of Net Revenue (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Receivables [Abstract] |  |  |  |  |  |  |  |  |  |  |
Gross revenue |  |  |  |  |  |  |  |  | $ 11,427,238 | $ 10,374,813 | $ 8,942,957
Contractual adjustments and uncollectibles |  |  |  |  |  |  |  |  | (8,285,317) | (7,464,030) | (6,389,195)
Hospital contract administrative fees |  |  |  |  |  |  |  |  | 316,391 | 272,376 | 226,234
Net revenue | $ 910,820 | $ 868,951 | $ 842,944 | $ 835,597 | $ 830,770 | $ 828,006 | $ 771,759 | $ 752,624 | $ 3,458,312 | $ 3,183,159 | $ 2,779,996

X
- Definition Contractual adjustments and uncollectibles. + References No definition available. + Details
Name: | md_ContractualAdjustmentsAndUncollectibles
Namespace Prefix: | md_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Health organization revenue gross. + References No definition available. + Details
Name: | md_HealthOrganizationRevenueGross
Namespace Prefix: | md_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Hospital contract administrative fees. + References No definition available. + Details
Name: | md_HospitalContractAdministrativeFees
Namespace Prefix: | md_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of revenues recognized by the entity from providing services to in-patients, outpatients, residents in facilities owned or operated by the entity, from insurance premiums, or from goods provided or services performed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_HealthCareOrganizationRevenue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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