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Property, Plant and Equipment - Summary of Property, Plant and Equipment (Footnote) (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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Property, Plant and Equipment [Abstract] |  |
Internal-use software development cost, accumulated amortization | $ 7.5 | $ 4.2

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- Definition Capitalized Internal Use Software Accumulated Amortization + References No definition available. + Details
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Namespace Prefix: | prg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration