XML 58 R34.htm IDEA: XBRL DOCUMENT
v3.3.0.814

Acquisitions - Estimated Useful Lives of Identifiable Intangible Assets (Detail) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2015 USD ($)
Powertrain Integration, LLC [Member] |
Finite-Lived Intangible Assets [Line Items] |
Total identifiable intangible assets | $ 13,600
Powertrain Integration, LLC [Member] | Backlog [Member] |
Finite-Lived Intangible Assets [Line Items] |
Total identifiable intangible assets | $ 600
Finite lived intangible asset estimated life | 3 months
Powertrain Integration, LLC [Member] | Customer Relationships [Member] |
Finite-Lived Intangible Assets [Line Items] |
Total identifiable intangible assets | $ 13,000
Finite lived intangible asset estimated life | 12 years
Bi-Phase Technologies, LLC [Member] |
Finite-Lived Intangible Assets [Line Items] |
Total identifiable intangible assets | $ 860
Bi-Phase Technologies, LLC [Member] | Customer Relationships [Member] |
Finite-Lived Intangible Assets [Line Items] |
Total identifiable intangible assets | $ 160
Finite lived intangible asset estimated life | 15 years
Bi-Phase Technologies, LLC [Member] | Developed Technology [Member] |
Finite-Lived Intangible Assets [Line Items] |
Total identifiable intangible assets | $ 700
Finite lived intangible asset estimated life | 7 years
Buck's Acquisition Company, LLC [Member] | Customer Relationships [Member] |
Finite-Lived Intangible Assets [Line Items] |
Total identifiable intangible assets | $ 1,380
Finite lived intangible asset estimated life | 10 years

X
- Definition The amount of identifiable intangible assets recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
Name: | us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_FiniteLivedIntangibleAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=psix_PowertrainIntegrationLimitedLiabilityCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_OrderOrProductionBacklogMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=psix_BiphaseTechnologiesLimitedLiabilityCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_DevelopedTechnologyRightsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=psix_BucksEnginesLimitedPartnershipMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |