Quarterly report pursuant to Section 13 or 15(d)

Financing Agreements - Narrative (Details)

v2.4.1.9
Financing Agreements - Narrative (Details)
In Millions, unless otherwise specified
0 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Dec. 15, 2014
Mar. 31, 2015
USD ($)
Dec. 15, 2014
Sep. 30, 2014
USD ($)
Mar. 31, 2015
$700 revolving credit facility, maturing December 19, 2019
USD ($)
Mar. 31, 2014
$700 revolving credit facility, maturing December 19, 2019
Mar. 31, 2015
$700 revolving credit facility, maturing December 19, 2019
USD ($)
Mar. 31, 2014
$700 revolving credit facility, maturing December 19, 2019
Sep. 30, 2014
$700 revolving credit facility, maturing December 19, 2019
USD ($)
Nov. 19, 2012
$700 revolving credit facility, maturing December 19, 2019
USD ($)
Mar. 31, 2015
Term loan
USD ($)
Dec. 19, 2014
Term loan
USD ($)
Sep. 30, 2014
Term loan
USD ($)
Mar. 31, 2015
Other financing agreements
USD ($)
Mar. 31, 2015
$100 unsecured Series A Notes, due December 15, 2024
USD ($)
Mar. 31, 2014
$100 unsecured Series A Notes, due December 15, 2024
Mar. 31, 2015
$100 unsecured Series A Notes, due December 15, 2024
USD ($)
Mar. 31, 2014
$100 unsecured Series A Notes, due December 15, 2024
Dec. 15, 2014
$100 unsecured Series A Notes, due December 15, 2024
USD ($)
Sep. 30, 2014
$100 unsecured Series A Notes, due December 15, 2024
USD ($)
Mar. 31, 2015
Syndicated credit facility
EUR (€)
Dec. 19, 2014
Second JPM Amendment
$700 revolving credit facility, maturing December 19, 2019
USD ($)
Dec. 19, 2014
Original and First Amendment of JPM Credit Facility
$700 revolving credit facility, maturing December 19, 2019
USD ($)
Debt instrument [Line Items]                                              
Total debt   $ 570.8us-gaap_LongTermDebt   $ 558.5us-gaap_LongTermDebt $ 146.3us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
  $ 146.3us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
  $ 229.6us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
  $ 175.5us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= hi_TermLoanMember
  $ 180.0us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= hi_TermLoanMember
  $ 100.0us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_UnsecuredDebtMember
  $ 100.0us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_UnsecuredDebtMember
  $ 100.0us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_UnsecuredDebtMember
$ 0us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_UnsecuredDebtMember
     
Stated interest rate                                     4.60%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_UnsecuredDebtMember
       
Redemption price, percentage 100.00%us-gaap_DebtInstrumentRedemptionPricePercentage                                            
Deferred financing costs                                     0.5us-gaap_DeferredFinanceCostsNoncurrentGross
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_UnsecuredDebtMember
    1.7us-gaap_DeferredFinanceCostsNoncurrentGross
/ us-gaap_DebtInstrumentAxis
= hi_SecondAmendmenttoJPMorganChaseBankCreditFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
 
Debt covenant, business acquisition value threshold   75.0hi_DebtInstrumentCovenantTermsLeverageHolidayBusinessAcquisitionValueThreshold                                          
Leverage holiday fee     0.75%hi_DebtInstrumentCovenantTermsLeverageExcessLeverageFee                                        
Line of credit facility, maximum borrowing capacity                   700.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
      210.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= hi_OtherFinancingAgreementsMember
            150.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= hi_SyndicatedCreditFacilityMember
   
Debt instrument, face amount                       0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= hi_TermLoanMember
    100us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_UnsecuredDebtMember
  100us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_UnsecuredDebtMember
           
Maximum ratio of Indebtedness to EBITDA allowed   3.5hi_DebtInstrumentCovenantTermsMaximumRatioofIndebtednesstoEarningsbeforeInterestTaxesDepreciationandAmortization                                          
Minimum ratio of EBITDA to interest expense allowed   3.5hi_DebtInstrumentCovenantTermsMinimumRatioofEarningsbeforeInterestTaxesDepreciationandAmortizationtoInterestExpense                                          
Deferred financing costs, existing                                             1.8us-gaap_DeferredFinanceCostsNoncurrentNet
/ us-gaap_DebtInstrumentAxis
= hi_OriginalandFirstAmendmenttoJPMorganChaseBankCreditFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Letters of credit outstanding, amount         15.9us-gaap_LettersOfCreditOutstandingAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
  15.9us-gaap_LettersOfCreditOutstandingAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
                               
Line of credit facility, remaining borrowing capacity         537.8us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
  537.8us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
                               
Line of credit facility, current borrowing capacity         402.9us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
  402.9us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
                               
Weighted average interest rates         1.30%us-gaap_DebtInstrumentInterestRateDuringPeriod
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
1.37%us-gaap_DebtInstrumentInterestRateDuringPeriod
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
1.29%us-gaap_DebtInstrumentInterestRateDuringPeriod
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
1.36%us-gaap_DebtInstrumentInterestRateDuringPeriod
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
            1.55%us-gaap_DebtInstrumentInterestRateDuringPeriod
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_UnsecuredDebtMember
1.66%us-gaap_DebtInstrumentInterestRateDuringPeriod
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_UnsecuredDebtMember
1.54%us-gaap_DebtInstrumentInterestRateDuringPeriod
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_UnsecuredDebtMember
1.67%us-gaap_DebtInstrumentInterestRateDuringPeriod
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_UnsecuredDebtMember
         
Weighted average facility fee         0.23%us-gaap_LineOfCreditFacilityCommitmentFeePercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
  0.24%us-gaap_LineOfCreditFacilityCommitmentFeePercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
                               
Line of credit facility, amount utilized for bank guarantees                           153.3hi_LineOfCreditFacilityAmountUtilizedForBankGuarantees
/ us-gaap_LongtermDebtTypeAxis
= hi_OtherFinancingAgreementsMember
                 
Restricted cash and cash equivalent   $ 0.7us-gaap_RestrictedCashAndCashEquivalents   $ 0.4us-gaap_RestrictedCashAndCashEquivalents