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Debt - Interest Rates (Details)			12 Months Ended
	Sep. 30, 2020	Sep. 29, 2020	Sep. 30, 2020
Acquisition Corp. | Senior Term Loan Facility Due In Two Thousand And Twenty
Debt Instrument [Line Items]
Term loan borrower alternate base rate election rate	1.00%		1.00%
Additional interest on overdue principal			2.00%
London Interbank Offered Rate (LIBOR) | Acquisition Corp. | Senior Term Loan Facility Due In Two Thousand And Twenty
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			2.125%
Fed Funds Effective Rate Overnight Index Swap Rate | Acquisition Corp. | Senior Term Loan Facility Due In Two Thousand And Twenty
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			0.50%
Base Rate | Acquisition Corp. | Senior Term Loan Facility Due In Two Thousand And Twenty
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			1.125%
Additional interest rate on other overdue amounts			2.00%
Revolving Credit Facility | Acquisition Corp.
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			0.75%
Additional interest on overdue principal			2.00%
Revolving Credit Facility | Acquisition Corp. | 2020 Revolving Loans
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			0.875%
Debt instrument, covenant, senior secured indebtedness to EBITDA ratio	3.05		3.05
Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Acquisition Corp.
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			1.75%
Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Acquisition Corp. | 2020 Revolving Loans
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			1.875%
Revolving Credit Facility | Fed Funds Effective Rate Overnight Index Swap Rate | Acquisition Corp.
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			0.50%
Revolving Credit Facility | Eurodollar Applicable Margin Rate | 2020 Revolving Loans
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.625%	1.875%
Revolving Credit Facility | ABR Applicable Margin Rate | 2020 Revolving Loans
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	0.625%	0.875%
Revolving Credit Facility | Base Rate | Acquisition Corp.
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			1.00%
Additional interest rate on other overdue amounts			2.00%

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- Definition

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+ References

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- Definition

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- Definition

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- Definition

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- Definition

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- Definition

Team loan borrower alternate base rate election rate.

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