Other Accrued Liabilities (Summary of Activity in Warranty Accrual) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Mar. 28, 2020	Mar. 30, 2019	Mar. 28, 2020	Mar. 30, 2019
Accounts Payable and Accrued Liabilities, Current [Abstract]
Warranty accrual at beginning of period	$ 29,369	$ 24,256	$ 28,061	$ 25,537
Warranty additions from acquisitions	202	0	744	0
Warranties issued during current period	3,194	4,055	7,037	6,025
Adjustments to pre-existing warranties	(1,003)	(307)	(1,184)	(398)
Reductions for settling warranties	(3,199)	(3,892)	(6,371)	(6,869)
Standard Product Warranty Accrual, Foreign Currency Translation Gain (Loss)	(177)	105	99	(78)
Warranty accrual at end of period	$ 28,386	$ 24,217	$ 28,386	$ 24,217

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Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (c)(1),(c)(5)
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Amount of increase in the standard product warranty accrual from a business acquisition. Excludes extended product warranties.

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-Publisher FASB
-Name Accounting Standards Codification
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Amount of foreign currency translation gain (loss) which decreases (increases) the standard product warranty accrual. Excludes extended product warranties.

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Amount of decrease in the standard product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard product warranty. Excludes extended product warranties.

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Amount of increase (decrease) in the standard product warranty accrual from changes in estimates attributable to preexisting product warranties. Excludes extended product warranties.

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Amount of increase in the standard product warranty accrual from warranties issued. Excludes extended product warranties.

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