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Income Taxes - Summary of net change in the total valuation allowance (Detail) - Planet Labs Inc [Member] - USD ($) $ in Thousands | 12 Months Ended
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Jan. 31, 2021 | Jan. 31, 2020
Valuation allowance, beginning of year | $ 102,758 | $ 73,155
Change in valuation allowance | 23,512 | 29,603
Valuation allowance, end of year | $ 126,270 | $ 102,758

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
Name: | us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
Name: | dei_LegalEntityAxis=dmyq_PlanetLabsIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |