Income and Franchise Tax, Payment of Realized Cash Savings, Percent

No definition available.

Name:	pinc_IncomeandFranchiseTaxPaymentofRealizedCashSavingsPercent
Namespace Prefix:	pinc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Participation Agreements, Term

+ References

No definition available.

+ Details

Name:	pinc_ParticipationAgreementsTerm
Namespace Prefix:	pinc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Probation Period for Company-directed Underwritten Public Offering

+ References

No definition available.

+ Details

Name:	pinc_ProbationPeriodforCompanydirectedUnderwrittenPublicOffering
Namespace Prefix:	pinc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	pinc_ReorganizationLineItems
Namespace Prefix:	pinc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Revenue Sharing (Participation Agreements), Percent

+ References

No definition available.

+ Details

Name:	pinc_RevenueSharingParticipationAgreementsPercent
Namespace Prefix:	pinc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Tax Receivable Agreement, Term of Agreement

+ References

No definition available.

+ Details

Name:	pinc_TaxReceivableAgreementTermofAgreement
Namespace Prefix:	pinc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Face amount or stated value per share of common stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.29)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 30

-Article 5

+ Details

Name:	us-gaap_CommonStockParOrStatedValuePerShare
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 21

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13537-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13531-108611

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 18

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592

+ Details

Name:	us-gaap_ConcentrationRiskPercentage1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of units or percentage investment held by one or more members or limited partners of the LLC or LP.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 272

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

+ Details

Name:	us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of new stock issued during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

+ Details

Name:	us-gaap_StockIssuedDuringPeriodSharesNewIssues
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_ConcentrationRiskByBenchmarkAxis=pinc_AdministrativeFeeRevenueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=pinc_MemberOwnersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=pinc_TwoLargestGPOMemberOwnersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassBMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

INITIAL PUBLIC OFFERING AND REORGANIZATION - Reorganization (Details) (USD $)	0 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	0 Months Ended
	Oct. 01, 2013	Dec. 31, 2014	Jun. 30, 2013	Dec. 31, 2013	Oct. 31, 2014	Jun. 30, 2014
Reorganization [Line Items]
Common stock, par value (usd per share)	$ 0.01
Limited partnership, limited partners ownership percentage		74.00%	99.00%
Term of tax receivable agreement	15 years
GPO participation agreements, term	5 years
Member Owners
Reorganization [Line Items]
Probation period for company-directed underwritten public offering	60 days
Payment of realized income and franchise tax cash savings, percent	85.00%			85.00%
Revenue share of gross administrative fees collected, percent	30.00%
Two Largest GPO Member Owners
Reorganization [Line Items]
GPO participation agreements, term	7 years
Class B Common Stock
Reorganization [Line Items]
Common stock issued					4,685,267
Common stock, par value (usd per share)	$ 0.000001	0.000001				$ 0.000001
Class B Common Stock \| Member Owners
Reorganization [Line Items]
Common stock issued	112,607,832
Common stock, par value (usd per share)	$ 0.000001
Class A Common Stock
Reorganization [Line Items]
Common stock issued	32,374,751			32,374,751
Common stock, par value (usd per share)	$ 0.01	0.01				$ 0.01
Maximum \| Class A Common Stock \| Member Owners
Reorganization [Line Items]
Limited partnership, limited partners ownership percentage	3.50%
Administrative Fee Revenue \| Two Largest GPO Member Owners
Reorganization [Line Items]
Percent of revenue	16.00%