Quarterly report pursuant to Section 13 or 15(d)

Credit facilities (Details)

v2.4.1.9
Credit facilities (Details) (USD $)
In Millions, unless otherwise specified
0 Months Ended 1 Months Ended
Apr. 01, 2015
Mar. 31, 2015
Mar. 09, 2015
Acentia LLC | Subsequent events      
Credit Facilities      
Leverage ratio, actual 1.0mms_DebtInstrumentCovenantConsolidatedLeverageRatioActual
/ us-gaap_BusinessAcquisitionAxis
= mms_AcentiaLlcMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
   
Credit Agreement Expiring January 2020      
Credit Facilities      
Maximum borrowing capacity     $ 400us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= mms_LineOfCreditExpiringJanuary2020Member
Amount borrowed   0us-gaap_LineOfCredit
/ us-gaap_DebtInstrumentAxis
= mms_LineOfCreditExpiringJanuary2020Member
 
Number of letters of credit issued   3mms_LettersOfCreditIssuedNumber
/ us-gaap_DebtInstrumentAxis
= mms_LineOfCreditExpiringJanuary2020Member
 
Credit Agreement Expiring January 2020 | Acentia LLC | Subsequent events      
Credit Facilities      
Amount borrowed 225.0us-gaap_LineOfCredit
/ us-gaap_BusinessAcquisitionAxis
= mms_AcentiaLlcMember
/ us-gaap_DebtInstrumentAxis
= mms_LineOfCreditExpiringJanuary2020Member
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
   
Credit Agreement Expiring January 2020 | Minimum      
Credit Facilities      
Leverage ratio to calculate annual commitment fee (as a percent)   0.15%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
/ us-gaap_DebtInstrumentAxis
= mms_LineOfCreditExpiringJanuary2020Member
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
 
Credit Agreement Expiring January 2020 | Minimum | Base Rate      
Credit Facilities      
Margin (as a percent)   0.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= mms_LineOfCreditExpiringJanuary2020Member
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember
 
Credit Agreement Expiring January 2020 | Minimum | Eurocurrency Rate      
Credit Facilities      
Margin (as a percent)   1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= mms_LineOfCreditExpiringJanuary2020Member
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_VariableRateAxis
= mms_EurocurrencyRateMember
 
Credit Agreement Expiring January 2020 | Minimum | Index Rate      
Credit Facilities      
Margin (as a percent)   1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= mms_LineOfCreditExpiringJanuary2020Member
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_VariableRateAxis
= mms_IndexRateMember
 
Credit Agreement Expiring January 2020 | Maximum      
Credit Facilities      
Leverage ratio   2.5mms_DebtInstrumentCovenantConsolidatedLeverageRatio
/ us-gaap_DebtInstrumentAxis
= mms_LineOfCreditExpiringJanuary2020Member
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
 
Leverage ratio to calculate annual commitment fee (as a percent)   0.30%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
/ us-gaap_DebtInstrumentAxis
= mms_LineOfCreditExpiringJanuary2020Member
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
 
Credit Agreement Expiring January 2020 | Maximum | Base Rate      
Credit Facilities      
Margin (as a percent)   0.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= mms_LineOfCreditExpiringJanuary2020Member
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember
 
Credit Agreement Expiring January 2020 | Maximum | Eurocurrency Rate      
Credit Facilities      
Margin (as a percent)   1.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= mms_LineOfCreditExpiringJanuary2020Member
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_VariableRateAxis
= mms_EurocurrencyRateMember
 
Credit Agreement Expiring January 2020 | Maximum | Index Rate      
Credit Facilities      
Margin (as a percent)   1.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= mms_LineOfCreditExpiringJanuary2020Member
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_VariableRateAxis
= mms_IndexRateMember
 
Swingline loans      
Credit Facilities      
Maximum borrowing capacity     5us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= mms_SwinglineLoansMember
Letters of credit      
Credit Facilities      
Maximum borrowing capacity     30us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= us-gaap_LetterOfCreditMember
Amount borrowed   4.7us-gaap_LettersOfCreditOutstandingAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_LetterOfCreditMember
 
Letters of credit | Acentia LLC | Subsequent events      
Credit Facilities      
Amount borrowed 0.6us-gaap_LettersOfCreditOutstandingAmount
/ us-gaap_BusinessAcquisitionAxis
= mms_AcentiaLlcMember
/ us-gaap_DebtInstrumentAxis
= us-gaap_LetterOfCreditMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
   
Letters of credit (Other than Revolving Credit Agreement)      
Credit Facilities      
Number of letters of credit issued   2mms_LettersOfCreditIssuedNumber
/ us-gaap_DebtInstrumentAxis
= mms_FinancialInstitutionLetterOfCreditMember
 
Amount borrowed   3.0us-gaap_LettersOfCreditOutstandingAmount
/ us-gaap_DebtInstrumentAxis
= mms_FinancialInstitutionLetterOfCreditMember