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Fair Value Measurements (Narrative) (Details) | 12 Months Ended
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Mar. 31, 2018
Fair Value Measurements (Textual) [Abstract] |
Typical period a loan is held for sale | 45 days

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- Definition Fair value measurements. + References No definition available. + Details
Name: | cvco_FairValueMeasurementsTextualAbstract
Namespace Prefix: | cvco_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Typical period loan is held for sale. + References No definition available. + Details
Name: | cvco_TypicalPeriodLoanIsHeldForSale
Namespace Prefix: | cvco_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration