| Standard Label: | Funded (Unfunded) Status of Defined Benefit Plans |
| Name: | nfp:FundedUnfundedStatusDefinedBenefitPlans |
| Identifier: | nfp_FundedUnfundedStatusDefinedBenefitPlans |
| Documentation: | Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. |
| Category of Term: | Concept |
| DefinedBy: | https://asc.fasb.org/topic&trid=2209682 |
| References: | (Coming Soon!) |
| Balance type: | debit |
| Period type: | instant |
| Data type: | xbrli:monetaryItemType |
Last updated: 4/28/2020 2:45:19 PM