XML 77 R59.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Segment Information - Summary of Sales to External Customers and Long-Lived Tangible Assets by Geographical Region (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | $ 619,793 | $ 584,954 | $ 405,443
Property, plant and equipment, net | 259,280 | 230,093 |
United States [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | 437,838 | 407,917 | 275,152
Property, plant and equipment, net | 173,269 | 155,784 |
Europe [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | 40,334 | 36,481 | 32,736
Property, plant and equipment, net | 25,288 | 21,069 |
Asia [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | 62,657 | 64,177 | 46,092
Property, plant and equipment, net | 26,078 | 19,936 |
Canada [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | 2,176 | 1,921 | 861
Mexico [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | 40,937 | 45,863 | 27,023
Property, plant and equipment, net | 7,544 | 5,821 |
South America [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | 35,845 | 28,595 | 23,558
Property, plant and equipment, net | 27,101 | 27,483 |
Other Country [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | 6 |  | 21
All Foreign Countries [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | 181,955 | 177,037 | $ 130,291
Property, plant and equipment, net | $ 86,011 | $ 74,309 |

X
- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(14)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(8)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
Name: | us-gaap_PropertyPlantAndEquipmentNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(a)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_SalesRevenueGoodsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=us-gaap_EuropeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=us-gaap_AsiaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_MX
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=us-gaap_SouthAmericaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=nnbr_OtherCountryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=us-gaap_NonUsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |