XML 66 R55.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Shared-Based Compensation - Schedule of Performance Based Awards Goals with Respect to TSR and ROIC (Detail) | 9 Months Ended
--- | ---
Sep. 30, 2022
Performance Shares TSR Awards [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Threshold performance, percentage | 25.00%
Target performance, percentage | 55.00%
Maximum performance, percentage | 75.00%
Performance Shares ROIC Award [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Threshold performance, percentage | 6.40%
Target performance, percentage | 8.60%
Maximum performance, percentage | 10.00%

X
- Definition Share based compensation arrangement by share based payment award based on threshold performance achievement percentage. + References No definition available. + Details
Name: | nnbr_ShareBasedCompensationArrangementByShareBasedPaymentAwardBasedOnThresholdPerformanceAchievementPercentage
Namespace Prefix: | nnbr_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share based compensation arrangement by share-based payment award based on maximum performance achievement percentage. + References No definition available. + Details
Name: | nnbr_ShareBasedCompensationArrangementBySharebasedPaymentAwardBasedOnMaximumPerformanceAchievementPercentage
Namespace Prefix: | nnbr_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share based compensation arrangement by share-based payment award based on target performance achievement percentage. + References No definition available. + Details
Name: | nnbr_ShareBasedCompensationArrangementBySharebasedPaymentAwardBasedOnTargetPerformanceAchievementPercentage
Namespace Prefix: | nnbr_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | us-gaap_AwardTypeAxis=nnbr_PerformanceSharesTsrAwardsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=nnbr_PerformanceSharesReturnOnInvestedCapitalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |