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FAIR VALUE - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended
Dec. 30, 2016
Dec. 29, 2016
Sep. 30, 2016
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Fair Value $ 60.0   $ 95.3
Amortized cost 60.0   95.3
Notes Receivable      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Long-term 70.6   59.2
2013 Term Loan Facility      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Fair value of current maturities of long-term debt 275.0   287.5
2013 Term Loan Facility      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Fair value of current maturities of long-term debt $ 62.5   50.0
Minimum      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Remaining maturity 1 month    
Maximum      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Remaining maturity 13 months    
CPTC loans      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Fair Value $ 60.0 $ 98.1 $ 95.3
Amortized cost 60.0    
Impairment charges 38.3    
Other loan related charges $ 0.2