XML 71 R59.htm IDEA: XBRL DOCUMENT v3.8.0.1

Revenue from Contracts with Customers - Summary of Revenue from Contracts with Customers (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue, Major Customer [Line Items]
Net sales	$ 169,148	$ 157,555
Intersegment Sales Eliminations [Member]
Revenue, Major Customer [Line Items]
Net sales	(528)
United States [Member]
Revenue, Major Customer [Line Items]
Net sales	119,808
United States [Member] | Intersegment Sales Eliminations [Member]
Revenue, Major Customer [Line Items]
Net sales	(528)
Chinese [Member]
Revenue, Major Customer [Line Items]
Net sales	13,192
Mexico [Member]
Revenue, Major Customer [Line Items]
Net sales	10,605
Brazilian [Member]
Revenue, Major Customer [Line Items]
Net sales	9,935
Poland [Member]
Revenue, Major Customer [Line Items]
Net sales	2,066
Czech Republic [Member]
Revenue, Major Customer [Line Items]
Net sales	1,810
Germany [Member]
Revenue, Major Customer [Line Items]
Net sales	1,542
Italy [Member]
Revenue, Major Customer [Line Items]
Net sales	1,675
Switzerland [Member]
Revenue, Major Customer [Line Items]
Net sales	1,406
Netherlands [Member]
Revenue, Major Customer [Line Items]
Net sales	974
Other Country [Member]
Revenue, Major Customer [Line Items]
Net sales	6,135
Mobile Solutions [Member]
Revenue, Major Customer [Line Items]
Net sales	89,794	86,446
Mobile Solutions [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	89,794
Mobile Solutions [Member] | United States [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	49,655
Mobile Solutions [Member] | Chinese [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	11,581
Mobile Solutions [Member] | Mexico [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	7,236
Mobile Solutions [Member] | Brazilian [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	9,885
Mobile Solutions [Member] | Poland [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	2,052
Mobile Solutions [Member] | Czech Republic [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	1,810
Mobile Solutions [Member] | Germany [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	1,534
Mobile Solutions [Member] | Italy [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	1,577
Mobile Solutions [Member] | Switzerland [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	1,406
Mobile Solutions [Member] | Other Country [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	3,058
Power Solutions [Member]
Revenue, Major Customer [Line Items]
Net sales	48,682	48,424
Power Solutions [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	48,682
Power Solutions [Member] | United States [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	40,128
Power Solutions [Member] | Chinese [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	1,485
Power Solutions [Member] | Mexico [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	3,197
Power Solutions [Member] | Brazilian [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	50
Power Solutions [Member] | Poland [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	14
Power Solutions [Member] | Germany [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	7
Power Solutions [Member] | Italy [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	98
Power Solutions [Member] | Netherlands [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	974
Power Solutions [Member] | Other Country [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	2,729
Life Sciences [Member]
Revenue, Major Customer [Line Items]
Net sales	31,200	$ 23,129
Life Sciences [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	31,200
Life Sciences [Member] | United States [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	30,553
Life Sciences [Member] | Chinese [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	126
Life Sciences [Member] | Mexico [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	172
Life Sciences [Member] | Germany [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	1
Life Sciences [Member] | Other Country [Member] | Operating Segments [Member]
Revenue, Major Customer [Line Items]
Net sales	$ 348

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_EntityWideRevenueMajorCustomerLineItems
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_ConsolidationItemsAxis=us-gaap_IntersegmentEliminationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	us-gaap_StatementGeographicalAxis=country_CN
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=country_BR
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementGeographicalAxis=country_PL
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementGeographicalAxis=country_CZ
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementGeographicalAxis=country_DE
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementGeographicalAxis=country_IT
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementGeographicalAxis=country_CH
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementGeographicalAxis=country_NL
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_StatementBusinessSegmentsAxis=nnbr_MobileSolutionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=nnbr_PowerSolutionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=nnbr_LifeSciencesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: