Interim Financial Statements	3 Months Ended
Mar. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Interim Financial Statements	Note 1. Interim Financial Statements We are a diversified industrial company and a leading global manufacturer of high precision bearing components, industrial plastic products and precision metal components to a variety of markets on a global basis. We have 40 manufacturing plants in North America, Western Europe, Eastern Europe, South America and Asia. Our business is aggregated into three reportable segments, the Precision Bearing Components Group, the Precision Engineered Products Group and the Autocam Precision Components Group. As used in this Quarterly Report on Form 10-Q, theterms “NN”, the “Company”, “we”, “our”, or “us” mean NN, Inc. and its subsidiaries. The accompanying Condensed Consolidated Financial Statements of NN, Inc. have not been audited, except that the Condensed Consolidated Balance Sheet at December 31, 2016 was derived from our audited consolidated financial statements included in our Annual Report on Form 10-Kfor the year ended December 31, 2016 (the “2016 Annual Report”), which was filed with the U.S. Securities and Exchange Commission (the “SEC”), on March 16, 2017. In our opinion, these Condensed Consolidated Financial Statements reflect all adjustments necessary to fairly state the results of operations for the three month periods ended March 31, 2017 and 2016, our financial position at March 31, 2017 and December 31, 2016, and the cash flows for the three month periods ended March 31, 2017 and 2016 on a basis consistent with our audited consolidated financial statements. These adjustments are of a normal recurring nature and are, in the opinion of management, necessary to present fairly our financial position and operating results for the interim periods. Certain information and footnote disclosures normally included in the consolidated financial statements prepared in accordance with generally accepted accounting principles have been condensed or omitted from the interim financial statements presented in this Quarterly Report on Form 10-Q. These unaudited, Condensed Consolidated Financial Statements should be read in conjunction with our audited consolidated financial statements and the notes thereto included in the 2016 Annual Report. The results for the three months ended March 31, 2017 are not necessarily indicative of results for the year ending December 31, 2017 or any other future periods. Newly Adopted Accounting Standards During March 2016, accounting standard update (“ASU”) 2016-09 – Improvements to Employee Share-Based Payment Accounting was issued regarding the guidance of how companies will account for certain aspects of share-based payments to employees. Entities will be required to recognize the income tax effects of awards in the income statement when the awards vest or are settled (i.e., additional paid-in capital or APIC pools will be eliminated). The guidance on employers’ accounting for an employee’s use of shares to satisfy the employer’s statutory income tax withholding obligation and for forfeitures is changing. The guidance is effective for public business entities for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. As of January 1, 2017, we adopted ASU 2016-09 and the results of the Standard are reflected in the three months ended March 31, 2017 balances. Upon adoption, historical tax benefits were reclassified from deferred taxes to retained earnings, prospective tax benefits will be recognized in income tax expense; tax payments in respect of shares withheld for taxes are now classified in the financing section of the statement of cash flows; and the dilutive earnings per share calculation excludes the tax benefits that generated more diluted shares. The effects of adoption were immaterial to the Financial Statements. Issuance of New Accounting Standards In May 2014, the FASB issued accounting guidance that provides a single, comprehensive revenue recognition model for all contracts with customers and supersedes most of the existing revenue recognition requirements. Under this guidance, an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In August 2015, the FASB issued accounting guidance that delayed the effective date of this standard by one year, making the guidance effective for fiscal years beginning after December 15, 2017. The new revenue guidance may impact the timing of recognition for certain Company’s customer incentives. Factors that will affect pre-and post-implementation include, but are not limited to, identifying all the contracts that exist and whether incidental obligations or marketing incentives included in those contracts are performance obligations. The revenue recognition standard may impact the timing of when revenue received under these performance obligations is recognized. We are still evaluating the impact the adoption of these ASC updates will have on our financial condition, results of operations and cash flows by performing scoping and contract analysis procedures. We intend to adopt these standards effective January 1, 2018 on a full retrospective transition method and also intend on applying all practical expedients related to completed contracts upon adoption. Our final evaluation of the impact of adopting these ASC updates is expected to be completed during 2017. On February 25, 2016, the FASB issued ASU 2016-02, Leases (“ASU 2016-02”). ASU 2016-02 creates Topic 842, Leases, in the FASB Accounting Standards Codification (“FASB ASC”) and supersedes FASB ASC 840, Leases. Entities that hold numerous equipment and real estate leases, in particular those with numerous operating leases, will be most affected by the new guidance. The leasing accounting standard is effective for public companies beginning January 1, 2019 with modified retrospective adoption required and early adoption permitted. The amendments in ASU 2016-02 are expected to impact balance sheets at many companies by adding lease-related assets and liabilities. This may affect compliance with contractual agreements and loan covenants. We have also carried out inquiries within segment locations compiling information on operating and capital leases. We are currently evaluating the impacts of the lease accounting standards regarding these and other leases identified on our financial position or results of operations and related disclosures. The FASB issued ASU 2016-15 - Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (a consensus of the Emerging Issues Task Force) (“ASU 2016-15”). This ASU provides clarification on how certain cash receipts and cash payments are presented and classified on the statement of cash flows. This ASU is effective for annual and interim periods beginning in 2018 and is required to be adopted using a retrospective approach if practicable, with early adoption permitted. The Company does not expect the adoption of this ASU to have a material impact on its Consolidated Statement of Cash Flows. During January 2017, the FASB issued ASU 2017-04 – Intangibles – Goodwill and Other (Topic 350) Simplifying the Test for Goodwill Impairment that eliminates the requirement to calculate the implied fair value of goodwill (i.e., Step 2 of today’s goodwill impairment test) to measure a goodwill impairment charge. Instead, entities will record an impairment charge based on the excess of a reporting unit’s carrying amount over its fair value (i.e., measure the charge based on today’s Step 1). The standard has tiered effective dates, starting in 2020 for calendar-year public business entities that meet the definition of an SEC filer. Early adoption is permitted for interim and annual goodwill impairment testing dates after January 1, 2017. We are currently evaluating the impact this new guidance is expected to have on our financial position or results of operations and related disclosures. Except for per share data or as otherwise indicated, all dollar amounts presented in the tables in these Notes to the Condensed Consolidated Financial Statements are in thousands.

Note 1. Interim Financial Statements

We are a diversified industrial company and a leading global manufacturer of high precision bearing components, industrial plastic products and precision metal components to a variety of markets on a global basis. We have 40 manufacturing plants in North America, Western Europe, Eastern Europe, South America and Asia. Our business is aggregated into three reportable segments, the Precision Bearing Components Group, the Precision Engineered Products Group and the Autocam Precision Components Group. As used in this Quarterly Report on Form 10-Q, theterms “NN”, the “Company”, “we”, “our”, or “us” mean NN, Inc. and its subsidiaries.

The accompanying Condensed Consolidated Financial Statements of NN, Inc. have not been audited, except that the Condensed Consolidated Balance Sheet at December 31, 2016 was derived from our audited consolidated financial statements included in our Annual Report on Form 10-Kfor the year ended December 31, 2016 (the “2016 Annual Report”), which was filed with the U.S. Securities and Exchange Commission (the “SEC”), on March 16, 2017. In our opinion, these Condensed Consolidated Financial Statements reflect all adjustments necessary to fairly state the results of operations for the three month periods ended March 31, 2017 and 2016, our financial position at March 31, 2017 and December 31, 2016, and the cash flows for the three month periods ended March 31, 2017 and 2016 on a basis consistent with our audited consolidated financial statements. These adjustments are of a normal recurring nature and are, in the opinion of management, necessary to present fairly our financial position and operating results for the interim periods.

Certain information and footnote disclosures normally included in the consolidated financial statements prepared in accordance with generally accepted accounting principles have been condensed or omitted from the interim financial statements presented in this Quarterly Report on Form 10-Q. These unaudited, Condensed Consolidated Financial Statements should be read in conjunction with our audited consolidated financial statements and the notes thereto included in the 2016 Annual Report. The results for the three months ended March 31, 2017 are not necessarily indicative of results for the year ending December 31, 2017 or any other future periods.

Newly Adopted Accounting Standards

During March 2016, accounting standard update (“ASU”) 2016-09 – Improvements to Employee Share-Based Payment Accounting was issued regarding the guidance of how companies will account for certain aspects of share-based payments to employees. Entities will be required to recognize the income tax effects of awards in the income statement when the awards vest or are settled (i.e., additional paid-in capital or APIC pools will be eliminated). The guidance on employers’ accounting for an employee’s use of shares to satisfy the employer’s statutory income tax withholding obligation and for forfeitures is changing. The guidance is effective for public business entities for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. As of January 1, 2017, we adopted ASU 2016-09 and the results of the Standard are reflected in the three months ended March 31, 2017 balances. Upon adoption, historical tax benefits were reclassified from deferred taxes to retained earnings, prospective tax benefits will be recognized in income tax expense; tax payments in respect of shares withheld for taxes are now classified in the financing section of the statement of cash flows; and the dilutive earnings per share calculation excludes the tax benefits that generated more diluted shares. The effects of adoption were immaterial to the Financial Statements.

Issuance of New Accounting Standards

In May 2014, the FASB issued accounting guidance that provides a single, comprehensive revenue recognition model for all contracts with customers and supersedes most of the existing revenue recognition requirements. Under this guidance, an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In August 2015, the FASB issued accounting guidance that delayed the effective date of this standard by one year, making the guidance effective for fiscal years beginning after December 15, 2017. The new revenue guidance may impact the timing of recognition for certain Company’s customer incentives. Factors that will affect pre-and post-implementation include, but are not limited to, identifying all the contracts that exist and whether incidental obligations or marketing incentives included in those contracts are performance obligations. The revenue recognition standard may impact the timing of when revenue received under these performance obligations is recognized. We are still evaluating the impact the adoption of these ASC updates will have on our financial condition, results of operations and cash flows by performing scoping and contract analysis procedures. We intend to adopt these standards effective January 1, 2018 on a full retrospective transition method and also intend on applying all practical expedients related to completed contracts upon adoption. Our final evaluation of the impact of adopting these ASC updates is expected to be completed during 2017.

On February 25, 2016, the FASB issued ASU 2016-02, Leases (“ASU 2016-02”). ASU 2016-02 creates Topic 842, Leases, in the FASB Accounting Standards Codification (“FASB ASC”) and supersedes FASB ASC 840, Leases. Entities that hold numerous equipment and real estate leases, in particular those with numerous operating leases, will be most affected by the new guidance. The leasing accounting standard is effective for public companies beginning January 1, 2019 with modified retrospective adoption required and early adoption permitted. The amendments in ASU 2016-02 are expected to impact balance sheets at many companies by adding lease-related assets and liabilities. This may affect compliance with contractual agreements and loan covenants. We have also carried out inquiries within segment locations compiling information on operating and capital leases. We are currently evaluating the impacts of the lease accounting standards regarding these and other leases identified on our financial position or results of operations and related disclosures.

The FASB issued ASU 2016-15 - Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (a consensus of the Emerging Issues Task Force) (“ASU 2016-15”). This ASU provides clarification on how certain cash receipts and cash payments are presented and classified on the statement of cash flows. This ASU is effective for annual and interim periods beginning in 2018 and is required to be adopted using a retrospective approach if practicable, with early adoption permitted. The Company does not expect the adoption of this ASU to have a material impact on its Consolidated Statement of Cash Flows.

During January 2017, the FASB issued ASU 2017-04 – Intangibles – Goodwill and Other (Topic 350) Simplifying the Test for Goodwill Impairment that eliminates the requirement to calculate the implied fair value of goodwill (i.e., Step 2 of today’s goodwill impairment test) to measure a goodwill impairment charge. Instead, entities will record an impairment charge based on the excess of a reporting unit’s carrying amount over its fair value (i.e., measure the charge based on today’s Step 1). The standard has tiered effective dates, starting in 2020 for calendar-year public business entities that meet the definition of an SEC filer. Early adoption is permitted for interim and annual goodwill impairment testing dates after January 1, 2017. We are currently evaluating the impact this new guidance is expected to have on our financial position or results of operations and related disclosures.

Except for per share data or as otherwise indicated, all dollar amounts presented in the tables in these Notes to the Condensed Consolidated Financial Statements are in thousands.