Quarterly report pursuant to Section 13 or 15(d)

Other Income (Expense), Net (Details)

Other Income (Expense), Net (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Other Nonoperating Income (Expense) [Abstract]    
Equity in net income (loss) of affiliates $ 0.3us-gaap_IncomeLossFromEquityMethodInvestments $ (0.2)us-gaap_IncomeLossFromEquityMethodInvestments
Foreign currency exchange loss, net (0.8)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax (0.3)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax
Other, net 0.5hi_OtherNonoperatingIncomeExpenseNet 0.4hi_OtherNonoperatingIncomeExpenseNet
Other income and expense, net $ 0us-gaap_OtherNonoperatingIncomeExpense $ (0.1)us-gaap_OtherNonoperatingIncomeExpense