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Employee Benefits - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
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Oct. 31, 2018 | Oct. 31, 2017 | Oct. 29, 2016
Defined Benefit Plans And Other Postretirement Benefit Plans Disclosures [Abstract] |  |  |
Maximum defer net employment income percentage | 100.00% |  |
Discretionary contribution amount | $ 9.7 | $ 7.1 | $ 6.1

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- Definition Defined contribution plan maximum deferred compensation by employees percentage. + References No definition available. + Details
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Namespace Prefix: | revg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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