Transfer Of Financial Assets Accounted For As Sales, Billed And Unbilled Receivables Sold During Period

No definition available.

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- Definition

Transfer of Financial Assets Accounted for as Sales

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Transfers of Financial Assets Accounted For As Sale, Securitization Facility Availability

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Transfers of Financial Assets Accounted For As Sale, Securitization Facility Renewal Term

+ References

No definition available.

+ Details

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- Definition

Transfers of Financial Assets Accounted For As Sale, Securitization Facility Term

+ References

No definition available.

+ Details

Name:	prsp_TransfersofFinancialAssetsAccountedForAsSaleSecuritizationFacilityTerm
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- Definition

The cash inflow associated with the collection of receivables arising from the financing of goods and services.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

Name:	dei_LegalEntityAxis=prsp_EnterpriseServicesLLCMember
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Balance Type:
Period Type:

Sale of Receivables (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Sale of Receivables (Details) - USD ($) $ in Millions	Sep. 30, 2018	Sep. 30, 2018	May 31, 2018	Jan. 23, 2018	Jul. 14, 2017
Transfer of Financial Assets Accounted for as Sales [Line Items]
Receivable facility term		1 year
Receivable facility renewal term		6 months
Billed and unbilled sold receivables	$ 714	$ 1,400
Receivable transfers as sales outstanding	$ 165	165
Collection of receivables sold		$ 35
Enterprise Services LLC
Transfer of Financial Assets Accounted for as Sales [Line Items]
Total availability under the Receivables Facility			$ 450	$ 300	$ 200