| Line |
Label |
Object Class |
Period Type |
Balance |
Report ElementName |
| 1 |
8266 - Disclosure - Defined Benefit Plans, Fair Value of Plan Assets Roll Forward (Level 4 Detail) |
Network |
* |
* |
http://www.xbrlsite.com/nfp/role/level4/DefinedBenefitPlansFairValueOfPlanAssetsRollForward |
| 2 |
Defined Benefit Plans Fair Value Roll Forward [Table] |
Table |
|
|
nfp:DefinedBenefitPlansFairValueRollForwardTable |
| 3 |
Benefit Plans [Axis] |
Axis |
|
|
nfp:BenefitPlansAxis |
| 4 |
All Benefit Plans [Member] |
Member |
|
|
nfp:AllBenefitPlansMember |
| 5 |
Defined Benefit Pension Plans [Member] |
Member |
|
|
nfp:DefinedBenefitPensionPlansMember |
| 6 |
Other Defined Benefit Postretirement Obligations [Member] |
Member |
|
|
nfp:OtherDefinedBenefitPostretirementObligationsMember |
| 7 |
Defined Benefit Plans Fair Value Roll Forward [Line Items] |
LineItems |
|
|
nfp:DefinedBenefitPlansFairValueRollForwardLineItems |
| 8 |
Defined Benefit Plans Fair Value [Roll Forward] |
Abstract |
|
|
nfp:DefinedBenefitPlansFairValueRollForward |
| 9 |
Defined Benefit Plans Fair Value, Beginning Balance |
Concept (Monetary) |
As Of |
Debit |
nfp:DefinedBenefitPlansFairValue |
| 10 |
Actuarial Return (Loss) on Plan Assets |
Concept (Monetary) |
For Period |
Debit |
nfp:ActuarialReturnLossOnPlanAssets |
| 11 |
Contributions to Plan by Employer |
Concept (Monetary) |
For Period |
Debit |
nfp:ContributionsToPlanByEmployer |
| 12 |
Contributions to Plan by Plan Participants |
Concept (Monetary) |
For Period |
Debit |
nfp:ContributionsToPlanByPlanParticipants |
| 13 |
Benefits Paid from Plan Assets |
Concept (Monetary) |
For Period |
Credit |
nfp:BenefitsPaidFromPlanAssets |
| 14 |
Administrative Expenses Paid |
Concept (Monetary) |
For Period |
Credit |
nfp:AdministrativeExpensesPaid |
| 15 |
Defined Benefit Plans Fair Value, Ending Balance |
Concept (Monetary) |
As Of |
Debit |
nfp:DefinedBenefitPlansFairValue |