Interim Financial Statements	6 Months Ended
Jun. 30, 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, Europe, South America and Asia. Our business is aggregated into three reportable segments- the Precision Bearing Components Group, the Precision Engineered Products Group (“PEP”) and the Autocam Precision Components Group. As used in this Quarterly Report on Form 10-Q, the terms “NN”, the “Company”, “we”, “our”, or “us” refer to 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-K for 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 and six month periods ended June 30, 2017 and 2016, our financial position at June 30, 2017 and December 31, 2016, and the cash flows for the six month periods ended June 30, 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 U.S. 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 six months ended June 30, 2017, are not necessarily indicative of results for the year ending December 31, 2017, or any other future periods. We have reclassified certain prior year amounts to conform to the current year’s presentation. Except for per share data or as otherwise indicated, all dollar amounts presented in the tables in these Notes to Condensed Consolidated Financial Statements are in thousands. Prior Periods’ Financial Statement Revision In connection with the preparation of our Condensed Consolidated Financial Statements as of and for the three and six months ended June 30, 2017, we identified misstatements in our previously issued financial statements related to the foreign currency translation of our investment in a China joint venture. We acquired a 49% investment in the joint venture as part of our acquisition of Autocam Corporation (“Autocam”) on August 29, 2014. The investment in the joint venture was remeasured to fair value at the time of the acquisition and has been accounted for under the equity method of accounting. Following the completion of the Autocam acquisition, the investment in the joint venture was accounted for in U.S. dollars whereas it should have been accounted for in the joint venture’s functional currency of the Chinese Renminbi in accordance with Accounting Standards Codification (“ASC”) Topic 830, Foreign Currency Matters. As a result, we did not correctly account for our investment in the joint venture and the related currency translation adjustment impacts. We previously corrected as out of period adjustments certain immaterial misstatements and reflected them in the prior period financial statements, where applicable. These immaterial previously recorded out of period adjustments were primarily due to misstatements related to the initial recording of deferred tax assets and liabilities and corresponding adjustments to goodwill as part of the purchase price allocations of the Autocam and PEP acquisitions in 2014 and 2015, the accounting for the goodwill balances from those acquisitions for multi-currency reporting through Other Comprehensive Income, and to record the mark to market adjustments on our interest rate hedge net of tax through Other Comprehensive Income. We assessed the materiality of the misstatements on prior periods’ financial statements in accordance with SEC Staff Accounting Bulletin (“SAB”) Topic 1.M, Materiality, codified in ASC Topic 250, Presentation of Financial Statements, (“ASC 250”) and concluded that the misstatements were not material to any prior annual or interim periods. In accordance with ASC 250 (SAB Topic 1.N, Considering the Effects of Prior Year Misstatements when Quantifying Misstatements in Current Year Financial Statements), we have corrected these misstatements for all prior periods presented by revising the Condensed Consolidated Financial Statements and other consolidated financial information included herein. We have revised, and will revise for annual and interim periods in future filings, for certain amounts in the consolidated financial statements in order to correct these misstatements. See Note 14 in these Notes to Condensed Consolidated Financial Statements for additional information. Newly Adopted Accounting Standards In March 2016, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) 2016-09, Improvements to Employee Share-Based Payment Accounting. The new standard changes how companies account for certain aspects of share-based payments to employees. Entities must recognize the income tax effects of awards in the statement of operations when the awards vest or are settled (i.e., additional paid-in capital pools were eliminated). The guidance changed regarding employers’ accounting for an employee’s use of shares to satisfy the employer’s statutory income tax withholding obligation and for forfeitures. The guidance was 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 effects of the standard are reflected in the three and six months ended June 30, 2017, balances. Upon adoption, $0.7 million in 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. The calculation of diluted earnings per share now excludes tax benefits that would have generated more dilutive shares. The effects of the adoption were not material to the financial statements. Issuance of New Accounting Standards Revenue Recognition. In May 2014, the FASB issued a new standard that provides a single, comprehensive revenue recognition model for all contracts with customers and supersedes most of the existing revenue recognition requirements. Under the new guidance, revenue is recognized when a customer obtains control of promised goods or services in an amount that reflects the consideration the entity expects to receive in exchange for those goods or services. In addition, the standard requires disclosure of the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. 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 some of those contracts are performance obligations. Additionally, we are evaluating the transfer of control of certain consignment contracts which may impact the timing of revenue recognition under the new standard. The standard will be effective for us beginning January 1, 2018, with early adoption permitted. We believe the most appropriate approach for us to adopt the standard effective January 1, 2018, would be to utilize the full retrospective transition method to restate each prior reporting period presented. We continue to evaluate the adoption method as we progress through each phase of implementation. While our ability to adopt the standard using the full retrospective method depends on system readiness and completing our analysis of information necessary to restate prior period consolidated financial statements, we remain on schedule. We have completed a diagnostic accounting assessment, including an analysis of a representative sample of contracts, to identify areas that will be most significantly impacted by implementation of the new standard. We have also completed an initial training phase to educate contract managers of the technical aspects of the new standard. We are in the process of concluding on and documenting our assessments related to the standard as well as potential system and procedural changes. We are evaluating the impact the new standard will have on our financial condition, results of operations and cash flows. Our final evaluation of the impact of adopting the new standard is expected to be completed during 2017. Leases. In February 2016, the FASB issued ASU 2016-02, Leases. ASU 2016-02 creates Topic 842, Leases, in the ASC and supersedes 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 lease 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 performed inquiries within segment locations and compiled information on operating and capital leases. We are currently evaluating the impacts of the lease accounting standard on our financial position, results of operations, and related disclosures. Statement of Cash Flows. In August 2016, the FASB issued ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments. This standard provides clarification on how certain cash receipts and cash payments are presented and classified on the statement of cash flows. The standard is effective for us beginning January 1, 2018, and is required to be adopted using a retrospective approach if practicable, with early adoption permitted. We are in the process of assessing the effects of the standard on prior periods. Goodwill. In 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 the current 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 the current Step 1 test). The standard is effective for us beginning with impairment tests performed on or after January 1, 2020, with early adoption permitted. We are currently evaluating the impact this new guidance is expected to have on our financial position or results of operations and related disclosures.

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, Europe, South America and Asia. Our business is aggregated into three reportable segments- the Precision Bearing Components Group, the Precision Engineered Products Group (“PEP”) and the Autocam Precision Components Group. As used in this Quarterly Report on Form 10-Q, the terms “NN”, the “Company”, “we”, “our”, or “us” refer to 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-K for 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 and six month periods ended June 30, 2017 and 2016, our financial position at June 30, 2017 and December 31, 2016, and the cash flows for the six month periods ended June 30, 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 U.S. 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 six months ended June 30, 2017, are not necessarily indicative of results for the year ending December 31, 2017, or any other future periods. We have reclassified certain prior year amounts to conform to the current year’s presentation.

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

Prior Periods’ Financial Statement Revision

In connection with the preparation of our Condensed Consolidated Financial Statements as of and for the three and six months ended June 30, 2017, we identified misstatements in our previously issued financial statements related to the foreign currency translation of our investment in a China joint venture. We acquired a 49% investment in the joint venture as part of our acquisition of Autocam Corporation (“Autocam”) on August 29, 2014. The investment in the joint venture was remeasured to fair value at the time of the acquisition and has been accounted for under the equity method of accounting. Following the completion of the Autocam acquisition, the investment in the joint venture was accounted for in U.S. dollars whereas it should have been accounted for in the joint venture’s functional currency of the Chinese Renminbi in accordance with Accounting Standards Codification (“ASC”) Topic 830, Foreign Currency Matters. As a result, we did not correctly account for our investment in the joint venture and the related currency translation adjustment impacts.

We previously corrected as out of period adjustments certain immaterial misstatements and reflected them in the prior period financial statements, where applicable. These immaterial previously recorded out of period adjustments were primarily due to misstatements related to the initial recording of deferred tax assets and liabilities and corresponding adjustments to goodwill as part of the purchase price allocations of the Autocam and PEP acquisitions in 2014 and 2015, the accounting for the goodwill balances from those acquisitions for multi-currency reporting through Other Comprehensive Income, and to record the mark to market adjustments on our interest rate hedge net of tax through Other Comprehensive Income.

We assessed the materiality of the misstatements on prior periods’ financial statements in accordance with SEC Staff Accounting Bulletin (“SAB”) Topic 1.M, Materiality, codified in ASC Topic 250, Presentation of Financial Statements, (“ASC 250”) and concluded that the misstatements were not material to any prior annual or interim periods. In accordance with ASC 250 (SAB Topic 1.N, Considering the Effects of Prior Year Misstatements when Quantifying Misstatements in Current Year Financial Statements), we have corrected these misstatements for all prior periods presented by revising the Condensed Consolidated Financial Statements and other consolidated financial information included herein. We have revised, and will revise for annual and interim periods in future filings, for certain amounts in the consolidated financial statements in order to correct these misstatements. See Note 14 in these Notes to Condensed Consolidated Financial Statements for additional information.

Newly Adopted Accounting Standards

In March 2016, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) 2016-09, Improvements to Employee Share-Based Payment Accounting. The new standard changes how companies account for certain aspects of share-based payments to employees. Entities must recognize the income tax effects of awards in the statement of operations when the awards vest or are settled (i.e., additional paid-in capital pools were eliminated). The guidance changed regarding employers’ accounting for an employee’s use of shares to satisfy the employer’s statutory income tax withholding obligation and for forfeitures. The guidance was 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 effects of the standard are reflected in the three and six months ended June 30, 2017, balances. Upon adoption, $0.7 million in 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. The calculation of diluted earnings per share now excludes tax benefits that would have generated more dilutive shares. The effects of the adoption were not material to the financial statements.

Issuance of New Accounting Standards

Revenue Recognition. In May 2014, the FASB issued a new standard that provides a single, comprehensive revenue recognition model for all contracts with customers and supersedes most of the existing revenue recognition requirements. Under the new guidance, revenue is recognized when a customer obtains control of promised goods or services in an amount that reflects the consideration the entity expects to receive in exchange for those goods or services. In addition, the standard requires disclosure of the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. 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 some of those contracts are performance obligations. Additionally, we are evaluating the transfer of control of certain consignment contracts which may impact the timing of revenue recognition under the new standard.

The standard will be effective for us beginning January 1, 2018, with early adoption permitted. We believe the most appropriate approach for us to adopt the standard effective January 1, 2018, would be to utilize the full retrospective transition method to restate each prior reporting period presented. We continue to evaluate the adoption method as we progress through each phase of implementation.

While our ability to adopt the standard using the full retrospective method depends on system readiness and completing our analysis of information necessary to restate prior period consolidated financial statements, we remain on schedule. We have completed a diagnostic accounting assessment, including an analysis of a representative sample of contracts, to identify areas that will be most significantly impacted by implementation of the new standard. We have also completed an initial training phase to educate contract managers of the technical aspects of the new standard. We are in the process of concluding on and documenting our assessments related to the standard as well as potential system and procedural changes. We are evaluating the impact the new standard will have on our financial condition, results of operations and cash flows. Our final evaluation of the impact of adopting the new standard is expected to be completed during 2017.

Leases. In February 2016, the FASB issued ASU 2016-02, Leases. ASU 2016-02 creates Topic 842, Leases, in the ASC and supersedes 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 lease 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 performed inquiries within segment locations and compiled information on operating and capital leases. We are currently evaluating the impacts of the lease accounting standard on our financial position, results of operations, and related disclosures.

Statement of Cash Flows. In August 2016, the FASB issued ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments. This standard provides clarification on how certain cash receipts and cash payments are presented and classified on the statement of cash flows. The standard is effective for us beginning January 1, 2018, and is required to be adopted using a retrospective approach if practicable, with early adoption permitted. We are in the process of assessing the effects of the standard on prior periods.

Goodwill. In 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 the current 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 the current Step 1 test). The standard is effective for us beginning with impairment tests performed on or after January 1, 2020, with early adoption permitted. We are currently evaluating the impact this new guidance is expected to have on our financial position or results of operations and related disclosures.