XML 101 R88.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Benefit Plans - Assets Measured at Fair Value on Recurring Basis (Detail) - Pension [Member] - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | --- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | $ 46,870 | $ 43,153 | $ 41,448 | $ 42,744
Group Annuity Contracts [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 120 | 127 |  |
Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 21,216 | 19,535 |  |
Pooled Separate Accounts [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments |  | 23,491 |  |
Level 1 [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 21,216 | 19,535 |  |
Level 1 [Member] | Group Annuity Contracts [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 0 | 0 |  |
Level 1 [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 21,216 | 19,535 |  |
Level 1 [Member] | Pooled Separate Accounts [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments |  | 0 |  |
Level 2 [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 25,654 | 23,618 |  |
Level 2 [Member] | Group Annuity Contracts [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 120 | 127 |  |
Level 2 [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 0 | 0 |  |
Level 2 [Member] | Pooled Separate Accounts [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments |  | 23,491 |  |
Level 3 [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 0 | 0 |  |
Level 3 [Member] | Group Annuity Contracts [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 0 | 0 |  |
Level 3 [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 0 | 0 |  |
Level 3 [Member] | Pooled Separate Accounts [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments |  | 0 |  |
Fixed Income [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 13,725 | 12,740 |  |
Fixed Income [Member] | Pooled Separate Accounts [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 25,534 |  |  |
Fixed Income [Member] | Level 1 [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 13,725 | 12,740 |  |
Fixed Income [Member] | Level 1 [Member] | Pooled Separate Accounts [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 0 |  |  |
Fixed Income [Member] | Level 2 [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 0 | 0 |  |
Fixed Income [Member] | Level 2 [Member] | Pooled Separate Accounts [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 25,534 |  |  |
Fixed Income [Member] | Level 3 [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 0 | 0 |  |
Fixed Income [Member] | Level 3 [Member] | Pooled Separate Accounts [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 0 |  |  |
International Equity [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 5,110 | 4,659 |  |
International Equity [Member] | Level 1 [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 5,110 | 4,659 |  |
International Equity [Member] | Level 2 [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 0 | 0 |  |
International Equity [Member] | Level 3 [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 0 | 0 |  |
Large U S Equity [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 1,431 | 1,296 |  |
Large U S Equity [Member] | Level 1 [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 1,431 | 1,296 |  |
Large U S Equity [Member] | Level 2 [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 0 | 0 |  |
Large U S Equity [Member] | Level 3 [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 0 | 0 |  |
Small Mid U S Equity [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 950 | 840 |  |
Small Mid U S Equity [Member] | Level 1 [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 950 | 840 |  |
Small Mid U S Equity [Member] | Level 2 [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | 0 | 0 |  |
Small Mid U S Equity [Member] | Level 3 [Member] | Mutual Funds [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total investments | $ 0 | $ 0 |  |

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

X
- Definition Fair value of assets that have been segregated and restricted to provide pension or postretirement benefits. Assets include, but are not limited to, stocks, bonds, other investments, earnings from investments, and contributions by the employer and employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
Name: | us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_PensionPlansDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=pfs_GroupAnnuityContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=pfs_MutualFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=pfs_PooledSeparateAccountsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=pfs_FixedIncomeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=pfs_InternationalEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=pfs_LargeUSEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=pfs_SmallMidUSEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |