| Standard Label: | Defined Benefit Plans Fair Value [Roll Forward] |
| Name: | nfp:DefinedBenefitPlansFairValueRollForward |
| Identifier: | nfp_DefinedBenefitPlansFairValueRollForward |
| Documentation: | |
| Category of Term: | Abstract |
| References: | (Coming Soon!) |
| Balance type: | none |
| Period type: | duration |
| Data type: | xbrli:stringItemType |
Last updated: 4/29/2021 2:16:32 PM