Accrued Expenses and Other Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Oct. 01, 2019	Sep. 30, 2019
Payables and Accruals [Abstract]
Salaries, wages and other benefits	$ 44,735		$ 35,206
Obligation under operating leases	12,993		0
Obligation under finance leases	11,456		17,859
Third party commissions	9,434		11,394
Insurance liabilities	7,570		4,895
Taxes, other than income	5,029		5,215
Provisions for litigation	2,718		1,533
Option and Purchase Right	506		0
Severance payments	1,044		655
Earn-outs related to acquisitions	91		611
Other	28,440		24,471
Accrued expenses and other liabilities	$ 124,016	$ 115,435	$ 101,839

Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of the obligations incurred through that date and payable for employees' services provided. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for sales commissions. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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The fair value of the open option contracts written for the investment.

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Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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