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Long-Term Debt and Other Financing Arrangements - Facility Agreement (Details) - Facility Agreement - USD ($)
$ in Millions
9 Months Ended 12 Months Ended
Jul. 01, 2019
Sep. 30, 2019
Jun. 30, 2019
Debt Instrument [Line Items]      
Interest above LIBOR rate, percentage 4.25%   3.75%
Percentage of guarantee provided by French export credit agency to lending syndicate   95.00%  
Debt service reserve account   $ 59.1  
Balance in the equity proceeds accounts   $ 2.1  
Domestic Subsidiaries      
Debt Instrument [Line Items]      
Percentage of equity pledged as collateral   100.00%  
Foreign Subsidiaries      
Debt Instrument [Line Items]      
Percentage of equity pledged as collateral   65.00%  
Minimum      
Debt Instrument [Line Items]      
Interest rate increase, percentage   0.50%  
Maximum      
Debt Instrument [Line Items]      
Interest rate increase, percentage   5.75%