XML 59 R46.htm IDEA: XBRL DOCUMENT
v3.4.0.3

Intangible Assets, Net - Summary of Changes in Carrying Amount of Intangible Assets, Net (Detail) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2016 USD ($)
Finite-Lived Intangible Assets [Line Items] |
Balance as of December 31, 2015 | $ 282,169
Amortization | (8,464)
Currency impacts | 102
Balance as of March 31, 2016 | 273,807
Precision Bearing Components Group [Member] |
Finite-Lived Intangible Assets [Line Items] |
Balance as of December 31, 2015 | 1,952
Amortization | (53)
Currency impacts | 46
Balance as of March 31, 2016 | 1,945
Autocam Precision Components Group [Member] |
Finite-Lived Intangible Assets [Line Items] |
Balance as of December 31, 2015 | 46,417
Amortization | (940)
Currency impacts | 56
Balance as of March 31, 2016 | 45,533
Precision Engineered Products Group [Member] |
Finite-Lived Intangible Assets [Line Items] |
Balance as of December 31, 2015 | 233,800
Amortization | (7,471)
Balance as of March 31, 2016 | $ 226,329

X
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
Name: | us-gaap_AmortizationOfIntangibleAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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_FiniteLivedIntangibleAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of increase (decrease) to assets, excluding financial assets and goodwill, lacking physical substance with a finite life for foreign currency translation adjustments. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsTranslationAdjustments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=nnbr_PrecisionBearingComponentsSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=nnbr_AutocamPrecisionComponentsSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=nnbr_PrecisionEngineeredProductsSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |