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Revenues (Schedule Of Disaggregated Revenue By Product Group) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 27, 2020	Jun. 29, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 247,059	$ 317,063
Brakes [Member]
Disaggregation of Revenue [Line Items]
Revenues	28,564	46,776
Exhaust [Member]
Disaggregation of Revenue [Line Items]
Revenues	4,432	6,953
Steering [Member]
Disaggregation of Revenue [Line Items]
Revenues	18,468	26,232
Tires [Member]
Disaggregation of Revenue [Line Items]
Revenues	137,270	154,065
Maintenance [Member]
Disaggregation of Revenue [Line Items]
Revenues	57,620	82,174
Other [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 705	$ 863

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

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- Details

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- Details

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- Details

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- Details

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- Details

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