Name:	amsg_RelatedPartyTransactionBillingFeesExpenseFromTransactionsWithRelatedParty
Namespace Prefix:	amsg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Medical advisory service expenses recognized during the period resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party during the period.

No definition available.

Name:	amsg_RelatedPartyTransactionMedicalAdvisoryServicesExpenseFromTransactionsWithRelatedParty
Namespace Prefix:	amsg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Operating lease expense recognized during the period resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party during the period.

No definition available.

Name:	amsg_RelatedPartyTransactionOperatingLeaseExpenseFromTransactionsWithRelatedParty
Namespace Prefix:	amsg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Reimbursed expenses as a percentage of other operating expenses as reported in the consolidated statement of earnings recognized during the period resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party during the period.

No definition available.

Name:	amsg_RelatedPartyTransactionOtherOperatingExpensesFromTransactionsWithRelatedParty
Namespace Prefix:	amsg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Salaries and benefits expenses recognized during the period resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party during the period.

No definition available.