XML 90 R61.htm IDEA: XBRL DOCUMENT
v3.19.1

Acquisitions - Summary of Identifiable Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Powertrain |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Asset Amount | $ 13,600 |
Estimated life | 11 years 6 months |
Powertrain | Backlog |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Asset Amount | $ 600 |
Estimated life | 3 months |
Powertrain | Customer relationships |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Asset Amount | $ 13,000 |
Estimated life | 12 years |
Bi-Phase |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Asset Amount | $ 860 |
Estimated life | 8 years 6 months |
Bi-Phase | Developed technology |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Asset Amount | $ 700 |
Estimated life | 7 years |
Bi-Phase | Customer relationships |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Asset Amount | $ 160 |
Estimated life | 15 years |
Buck's | Customer relationships |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Asset Amount | $ 1,380 |
Estimated life | 10 years |
3PI |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Asset Amount |  | $ 23,300
Estimated life | 12 years 5 months 8 days |
3PI | Backlog |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Asset Amount |  | $ 1,200
Estimated life |  | 15 months
3PI | Customer relationships |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Asset Amount |  | $ 20,400
Estimated life |  | 13 years
3PI | Tradenames and trademarks |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Asset Amount |  | $ 1,700
Estimated life |  | 13 years

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_AcquiredFiniteLivedIntangibleAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
Name: | us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
Name: | us-gaap_FinitelivedIntangibleAssetsAcquired1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

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

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