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Derivative Financial Instruments (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Nov. 28, 2018
Mar. 31, 2019
Mar. 31, 2019
Derivative [Line Items]      
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred     $ (126)
Interest rate cap amortization to be recognized in earnings within twelve months     $ (745)
Description of Reclassification of Cash Flow Hedge Gain (Loss)     twelve months
Interest Rate Cap      
Derivative [Line Items]      
Derivative, Term of Contract 3 years    
Derivative, Cap Interest Rate 3.50%    
Cash paid for interest rate cap $ 2,235    
Unamortized Premium, Interest Rate Cap   $ 1,987 $ 1,987
Amortization   186 248
Foreign Exchange Forward      
Derivative [Line Items]      
Derivative, Notional Amount   19,485 19,485
Designated as Hedging Instrument | Interest Rate Cap      
Derivative [Line Items]      
Derivative, Notional Amount $ 600,000    
Prepaid Expenses and Other Current Assets | Interest Rate Cap      
Derivative [Line Items]      
Unamortized Premium, Interest Rate Cap   745 745
Other Noncurrent Assets [Member] | Interest Rate Cap      
Derivative [Line Items]      
Unamortized Premium, Interest Rate Cap   $ 1,242 $ 1,242