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Subsequent Event (Details) - Subsequent Event - Mr. John Schaefer shares in Thousands, $ in Thousands | Mar. 18, 2018 USD ($) shares
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Subsequent Event [Line Items] |
Aggregate amount subject to tax withholdings and other deductions | $ | $ 1,459
Period for payment | 18 months
Number of unvested shares subject to accelerated vesting | shares | 242

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- Definition Amount of cash outflows to satisfy retirement obligations subject to tax withholdings and other deductions. + References No definition available. + Details
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Namespace Prefix: | spwh_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Period for payment of retirement obligations. + References No definition available. + Details
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Namespace Prefix: | spwh_
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Balance Type: | na
Period Type: | duration

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- Definition Number of shares for which recognition of compensation cost was accelerated. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Details
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- Details
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Namespace Prefix: |
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