NN (NNBR) 10-K16 Mar 152014 FY Annual reportFinancial data

Company Profile

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
Document and Entity Information (USD $)	Dec. 31, 2014	Mar. 10, 2015	Jun. 30, 2014
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	FALSE
Document Period End Date	31-Dec-14
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Trading Symbol	NNBR
Entity Registrant Name	NN INC
Entity Central Index Key	918541
Current Fiscal Year End Date	-19
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		18,983,549
Entity Public Float			$433,000,000

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash	$37,317	$3,039
Accounts receivable, net	97,510	58,929
Inventories	91,469	54,530
Income tax receivable	1,149	816
Current deferred tax assets	5,849	2,119
Other current assets	9,505	6,241
Total current assets	242,799	125,674
Property, plant and equipment, net	278,442	121,089
Goodwill, net	83,941	8,624
Intangible assets, net	52,827	900
Non-current deferred tax assets	2,265	2,713
Investment in joint venture	34,703
Other non-current assets	17,736	3,402
Total assets	712,713	262,402
Current liabilities:
Accounts payable	71,094	40,687
Accrued salaries, wages and benefits	21,148	11,761
Income taxes payable	3,274	1,340
Current maturities of long-term debt	22,160	10,477
Current portion of obligation under capital lease	5,418	493
Other current liabilities	14,504	4,626
Total current liabilities	137,598	69,384
Non-current deferred tax liabilities	49,461	3,844
Long-term debt, net of current portion	328,026	26,000
Accrued post-employment benefits	6,972	6,920
Obligation under capital lease, net of current portion	14,539	3,494
Other	2,418
Total liabilities	539,014	109,642
Commitments and Contingencies (Note 14)
Stockholders' equity:
Common stock - $0.01 par value, authorized 45,000 shares, issued and outstanding 18,983 in 2014 and 17,630 in 2013	190	176
Additional paid-in capital	99,095	63,126
Retained earnings	69,015	65,929
Accumulated other comprehensive income	5,367	23,529
Non-controlling interest	32
Total stockholders' equity	173,699	152,760
Total liabilities and stockholders' equity	$712,713	$262,402

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Statement of Financial Position [Abstract]
Common Stock, par value	$0.01	$0.01
Common Stock, shares authorized	45,000,000	45,000,000
Common Stock, shares issued	18,983,000	17,630,000
Common Stock, shares outstanding	18,983,000	17,630,000

Consolidated_Statements_of_Inc

Consolidated Statements of Income and Comprehensive Income (Loss) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Statement [Abstract]
Net sales	$488,601	$373,206	$370,084
Cost of products sold (exclusive of depreciation and amortization shown separately below)	384,889	295,136	294,859
Selling, general and administrative	43,756	33,281	31,561
Acquisition related costs excluded from selling, general and administrative	9,248
Depreciation and amortization	22,146	16,957	17,643
(Gain) loss on disposal of assets		5	-17
Restructuring and impairment charges	875		967
Income from operations	27,687	27,827	25,071
Interest expense	12,293	2,374	3,878
Other expense, net	2,222	275	852
Income before provision (benefit) for income taxes and share of net income from joint venture	13,172	25,178	20,341
Provision (benefit) for income taxes	5,786	8,000	-3,927
Share of net income (loss) from joint venture, net of tax	831
Net income	8,217	17,178	24,268
Other comprehensive income (loss):
Change in fair value of interest rate hedge	-431
Foreign currency translation gain (loss)	-17,731	3,899	2,806
Comprehensive income (loss)	($9,945)	$21,077	$27,074
Basic income per share:
Net income	$0.46	$1	$1.43
Weighted average shares outstanding	17,887	17,176	17,009
Diluted income per share:
Net income	$0.45	$1	$1.42
Weighted average shares outstanding	18,253	17,260	17,114
Cash dividends per common share	$0.28	$0.18	$0

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Stockholders' Equity (USD $)	Total	Common Stock [Member]	Additional Paid in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Non-controlling Interest [Member]
In Thousands	Total	Common Stock [Member]	Additional Paid in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Non-controlling Interest [Member]
Beginning Balance at Dec. 31, 2011	$99,676	$169	$55,071	$27,612	$16,824
Beginning Balance, Shares at Dec. 31, 2011		16,949
Net income	24,268			24,268
Stock option expense	1,093		1,093
Shares issued for option exercises	22		22
Shares issued for option exercises, Shares		17
Restricted stock compensation expense	695	1	694
Restricted Stock compensation expense, Shares		78
Foreign currency translation gain (loss)	2,806				2,806
Ending Balance at Dec. 31, 2012	128,560	170	56,880	51,880	19,630
Ending Balance, Shares at Dec. 31, 2012		17,044
Net income	17,178			17,178
Dividends declared	-3,129			-3,129
Stock option expense	1,437		1,437
Shares issued for option exercises	4,013	4	4,009
Shares issued for option exercises, Shares		496
Restricted stock compensation expense	802	2	800
Restricted Stock compensation expense, Shares		90
Foreign currency translation gain (loss)	3,899				3,899
Ending Balance at Dec. 31, 2013	152,760	176	63,126	65,929	23,529
Ending Balance, Shares at Dec. 31, 2013		17,630
Net income	8,217			8,217
Dividends declared	-5,131			-5,131
Stock option expense	1,274		1,274
Shares issued for option exercises	1,671	2	1,669
Shares issued for option exercises, Shares	158	152
Shares issued for acquisition	31,717	11	31,706
Shares issues for acquisition, Shares		1,087
Restricted stock compensation expense	1,321	1	1,320
Restricted Stock compensation expense, Shares		114
Non-controlling interest	32					32
Foreign currency translation gain (loss)	-17,731				-17,731
Change in fair value of interest rate hedge	-431				-431
Ending Balance at Dec. 31, 2014	$173,699	$190	$99,095	$69,015	$5,367	$32
Ending Balance, Shares at Dec. 31, 2014		18,983

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities:
Net income	$8,217	$17,178	$24,268
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	22,146	16,957	17,643
Amortization of debt issuance costs	844	547	824
Debt Issuance costs write-off	1,398
Joint venture net income in excess of cash received	-831
(Gain) loss on disposals of property, plant and equipment		5	-17
Allowance for doubtful accounts	208	177	98
Compensation expense from issuance of restricted stock and incentive stock options	2,595	2,239	1,788
Deferred income tax expense (benefit)	-1,333	3,331	-7,067
Capitalized interest and non-cash interest			-173
Non-cash restructuring and impairment charges	875		967
Changes in operating assets and liabilities:
Accounts receivable	-3,283	-6,284	15,330
Inventories	-9,836	-7,232	238
Other current assets	-1,624	1,577	-1,568
Other non-current assets	-4,828	-802	-21
Accounts payable	9,497	2,577	-11,630
Other liabilities	6,663	1,481	-3,322
Net cash provided by operating activities	30,708	31,751	37,358
Cash flows from investing activities:
Acquisition of property, plant and equipment	-27,602	-15,250	-17,089
Proceeds from disposals of property, plant and equipment	1,374		366
Cash paid to acquire businesses, net of cash received	-257,664
Dividend received from joint venture	2,284
Proceeds received from long-term note receivable			1,945
Net cash used by investing activities	-281,608	-15,250	-14,778
Cash flows from financing activities:
Debt issue costs paid	-9,380		-862
Dividends Paid	-5,131	-3,129
Proceeds from long-term debt, net	344,750
Repayment of long-term debt, net	-40,880	-33,715	-7,914
Proceeds (repayment) of short-term debt, net	359	676	-701
Proceeds from issuance of stock and exercise of stock options	1,671	4,013	22
Payment for acquisition of non-controlling interest	-2,528
Principal payments on capital lease	-1,888	-136	-119
Net cash provided by (used by) financing activities	286,973	-32,291	-9,574
Effect of exchange rate changes on cash flows	-1,795	-161	1,448
Net change in cash and cash equivalents	34,278	-15,951	14,454
Cash and cash equivalents at beginning of year	3,039	18,990	4,536
Cash and cash equivalents at end of year	37,317	3,039	18,990
Supplemental schedule of non-cash investing and financing activities:
Compensation expense for stock awards, ($1,321 in 2014 $802 in 2013 and $695 in 2012) and stock option expense ($1,274 in 2014, $1,437 in 2013 and $1,093 in 2012) included in stockholders' equity	2,595	2,239	1,788
Shares issued in acquisition of Autocam	31,717
Cash paid for interest and income taxes
Interest	8,307	1,777	3,130
Income taxes	$5,747	$3,986	$5,882

Consolidated_Statements_of_Cas1

Consolidated Statements of Cash Flows (Parenthetical) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Cash Flows [Abstract]
Compensation expense for stock awards	$1,321	$802	$695
Stock option expense	$1,274	$1,437	$1,093

Summary_of_Significant_Account

Summary of Significant Accounting Policies and Practices	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Summary of Significant Accounting Policies and Practices	1)	Summary of Significant Accounting Policies and Practices

		a)	Description of Business
	NN, Inc. (“NN”, “the Company”, “we”, “our” or “us”) is a manufacturer of precision balls, cylindrical and tapered rollers, bearing retainers, plastic injection molded products, precision bearing seals and precision metal components. Our balls, rollers, retainers, and bearing seals are used primarily in the domestic and international anti-friction bearing industry. Our plastic injection molded products are used in the bearing components, automotive components, electronic instrument cases and other molded components used in a variety of applications. The precision metal components products are close-tolerance, specialty metal alloy components for mechanical and electromechanical systems using turning, grinding and milling processes. We manufacture components for use on fuel delivery, electromechanical motor, steering and braking systems for the transportation industry, the HVAC industry, fluid power and diesel engine industries.

		b)	Cash
	The Company considers all highly liquid investments with an original maturity of three months or less as cash equivalents.

		c)	Inventories
	Inventories are stated at the lower of cost or market. Cost is determined using the average cost method. Our policy is to expense abnormal amounts of idle facility expense, freight, handling cost, and waste. In addition, we allocate fixed production overheads based on the normal production capacity of our facilities. Inventory valuations were developed using normalized production capacities for each of our manufacturing locations and the costs from excess capacity or under-utilization of fixed production overheads were expensed in the period incurred and are not included as a component of inventory valuation.
	Inventories also include tools, molds and dies in progress that we are producing and will ultimately sell to our customers. This activity is principally related to our Plastic and Rubber Components and Precision Metal Components Segments. These inventories are carried at the lower of cost or market.

		d)	Property, Plant and Equipment
	Property, plant and equipment are stated at cost less accumulated depreciation. Assets to be disposed of are stated at lower of depreciated cost or fair market value less estimated selling costs. Expenditures for maintenance and repairs are charged to expense as incurred. Major renewals and betterments are capitalized. When a property item is retired, its cost and related accumulated depreciation are removed from the property accounts and any gain or loss is recorded in the consolidated statements of income and comprehensive income. We review the carrying values of long-lived assets for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. Property, plant and equipment includes tools, molds and dies principally used in our Plastic and Rubber Components and Precision Metal Components Segments that are our property.
	Depreciation is provided on the straight-line method over the estimated useful lives of the depreciable assets for financial reporting purposes. For leasehold improvements and buildings under capital lease, we depreciate these over the shorter of useful lives or the lease term. In the event we abandon and cease to use certain property, plant, and equipment, depreciation estimates are revised and, in most cases, depreciation expense will be accelerated to reflect the shortened useful life of the asset.

		e)	Revenue Recognition
	We recognize revenues based on the stated shipping terms with customers when these terms are satisfied and the risks of ownership are transferred to the customers. We have an inventory management program for certain Metal Bearing Components Segment customers whereby revenue is recognized when products are used by customers from consigned stock, rather than at the time of shipment. Under both circumstances, revenue is recognized when persuasive evidence of an arrangement exists, delivery has occurred, the sellers’ price is fixed and determinable and collectability is reasonably assured.

		f)	Accounts Receivable
	Accounts receivable are recorded upon recognition of a sale of goods and ownership and risk of loss is assumed by the customer. Substantially all of our accounts receivable are due primarily from the core served markets. In establishing allowances for doubtful accounts, we perform credit evaluations of our customers, considering numerous inputs when available including the customers’ financial position, past payment history, relevant industry trends, cash flows, management capability, historical loss experience and economic conditions and prospects. Accounts receivable are written off or allowances established when considered to be uncollectible or at risk of being uncollectible, respectively.

		g)	Income Taxes
	Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carry forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. Valuation allowances are recorded to reduce deferred tax assets when it is more likely than not that a tax benefit will not be realized. Provision has not been made for income taxes on unremitted earnings of foreign subsidiaries as these earnings are deemed to be permanently reinvested. We recognize income tax positions that meet the more likely than not threshold and accrue interest and potential penalties related to unrecognized income tax positions which are recorded as a component of the provision (benefit) for income taxes.

		h)	Net Income Per Common Share
	Basic income per share reflects reported earnings divided by the weighted average number of common shares outstanding. Diluted income per share include the effect of dilutive stock options, unvested restricted stock (if any) and the respective tax benefits, unless inclusion would not be dilutive.

		i)	Share Based Compensation
	The cost of stock options and stock awards are expensed as compensation expense over the vesting periods based on the fair value at the grant date. (See Note 8 of the Notes to the Consolidated Financial Statements) We use the Black Scholes financial pricing model to determine the fair value of our stock options as our options are not traded in open markets.
	We account for stock awards by recognizing compensation expense ratably over the vesting period as specified in the award. Compensation expense to be recognized is based on the stock price at date of grant.

		j)	Principles of Consolidation
	Our consolidated financial statements include the accounts of NN, Inc. and its subsidiaries. All of our subsidiaries are 100% owned (except for RFK which we own 99.7%) and all are included in the consolidated financial statements for the years end December 31, 2014, 2013, and 2012. All significant inter-company profits, transactions, and balances have been eliminated in consolidation. With the acquisition of Autocam Corporation (see Note 2) we acquired a 49% interest in a Chinese joint venture. This joint venture is not consolidated within the financial statements of NN, Inc. and is accounted for under the equity method (see Note 16).

		k)	Foreign Currency Translation
	Assets and liabilities of our foreign subsidiaries are translated at current exchange rates, while revenue, costs and expenses are translated at average rates prevailing during each reporting period. Translation adjustments arising from the translation of foreign subsidiary financial statements are reported as a component of other comprehensive income and accumulated other comprehensive income within stockholders’ equity. In addition, transactions denominated in foreign currencies, including intercompany transactions, are initially recorded at the current exchange rate at the date of the transaction. The balances are adjusted to the current exchange rate as of each balance sheet date and as of the date when the transaction is consummated. Transaction gains or losses, excluding intercompany loan transactions, are expensed in either cost of products sold or selling, general and administrative lines in the Consolidated Statements of Income and Comprehensive Income (Loss) as incurred and were immaterial to the years ended December 31, 2014, 2013 and 2012. Transaction gains or losses on intercompany loan transactions are recognized in the other income, net line in the Consolidated Statements of Income and Comprehensive Income (Loss) as incurred.

		l)	Goodwill and Other Indefinite Lived Intangible Assets
	We recognize the excess of the purchase price of an acquired entity over the fair value of the net identifiable assets as goodwill. Goodwill is tested for impairment on an annual basis as of October 1 and between annual tests if a triggering event occurs. The impairment procedures are performed at the reporting unit level for the reporting units that have goodwill. In September 2011, the FASB issued a revised accounting standard, intended to reduce the cost and complexity of the annual goodwill impairment test by providing entities an option to perform a “qualitative” assessment to determine whether further impairment testing is necessary. Specifically, an entity has the option to first assess qualitative factors to determine whether it is necessary to perform the current two-step test. If an entity believes, as a result of its qualitative assessment, that it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, the quantitative impairment test is required. Otherwise, no further testing is required. For the years ended, December 31, 2014 and 2013, we determined it was more appropriate to perform a full step 1 goodwill test. The decision to perform a qualitative assessment or a complete step 1 analysis is an annual decision made by management. Based on the results of the step 1 analysis fair value of the reporting units exceeded the carrying value of the reporting units at December 31, 2014 and 2013.
	If the qualitative assessment indicates it is more likely than not that the fair value is less than the carrying value, U.S. GAAP prescribes a two-step process for testing for goodwill impairments. The first step is to determine if the carrying value of the reporting unit with goodwill is less than the related fair value of the reporting unit. The fair value of the reporting unit is determined through use of discounted cash flow methods and market based multiples of earning and sales methods obtained from a grouping of comparable publicly trading companies. We believe this methodology of valuation is consistent with how market participants would value reporting units. The discount rate and market based multiples used are specifically developed for the unit tested regarding the level of risk and end markets served. Even though we do use other observable inputs (Level 2 inputs) the calculation of fair value for goodwill would be most consistent with Level 3 inputs.
	If the carrying value of the reporting unit including goodwill is less than fair value of the reporting unit, the goodwill is not considered impaired. If the carrying value is greater than fair value then the potential for impairment of goodwill exists. The potential impairment is determined by allocating the fair value of the reporting unit among the assets and liabilities based on a purchase price allocation methodology as if the reporting unit was acquired in a business combination. The fair value of the goodwill is implied from this allocation and compared to the carrying value with an impairment loss recognized if the carrying value is greater than the implied fair value.
	We base our fair value estimates, in large part, on management business plans and projected financial information which are subject to a high degree of management judgment and complexity. Actual results may differ from projections and the differences may be material.
	Our indefinite lived intangible asset is accounted for similarly to goodwill. This asset is tested for impairment at least annually by comparing the fair value to the carrying value, using the relief from royalty rate method, and if the fair value is less than the carrying value, an impairment charge is recognized for the difference. We elected to use Step 1 testing even though a qualitative approach was available to us.

		m)	Impairment of Long-Lived Assets and Long-Lived Assets to Be Disposed Of
	Long-lived tangible and intangible assets subject to amortization are tested for recoverability when changes in circumstances indicate the carrying value of these assets may not be recoverable. A test for recoverability is also performed when management has committed to a plan to dispose of a reporting unit or asset group. Assets to be held and used are tested for recoverability when indications of impairment are evident. Recoverability of a long-lived tangible and intangible asset is evaluated by comparing its carrying value to the future estimated undiscounted cash flows expected to be generated by the asset or asset group. If the asset is not recoverable the asset is considered impaired and adjusted to fair value which is then depreciated/amortized over its remaining useful life. Assets to be disposed of are carried at the lesser of carrying value or fair value less costs of disposal.

		n)	Use of Estimates in the Preparation of Financial Statements
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

		o)	Fair Value Measurements
	Fair value principles prioritize valuation inputs across three broad levels. Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument. Level 3 inputs are unobservable inputs based on the assumptions used to measure assets and liabilities at fair value. An asset or liability’s classification within the various levels is determined based on the lowest level input that is significant to the fair value measurement.

		p)	Recently Issued Accounting Standards
	In May 2014, the FASB and International Accounting Standards Board jointly issued new principles-based accounting guidance for revenue recognition that will supersede virtually all existing revenue guidance. The core principle of this guidance is that 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 and services. To achieve the core principle, the guidance establishes the following five steps: 1) identify the contract(s) with a customer, 2) identify the performance obligation in the contract, 3) determine the transaction price, 4) allocate the transaction price to the performance obligations in the contract, and 5) recognize revenue when (or as) the entity satisfies a performance obligation. The guidance also details the accounting treatment for costs to obtain or fulfill a contract. Lastly, disclosure requirements have been enhanced to provide sufficient information to enable users of financial statements to understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. This guidance is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Early application is not 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.

		q)	Business Combinations
	We allocate the total purchase price of the acquired tangible and intangible assets acquired and liabilities assumed based on their estimated fair values as of the business combination date, with the excess purchase price recorded as goodwill. The purchase price allocation process required us to use significant estimates and assumptions, including fair value estimates, as of the business combination date. Although we believe the assumptions and estimates we have made are reasonable and appropriate, they are based in part on historical experience and information obtained from management of the acquired company, in part based on valuation models that incorporate projections of expected future cash flows and operating plans and are inherently uncertain. Valuations are performed by management or third party valuation specialists under management’s supervision. In determining the fair value of assets acquired and liabilities assumed in business combinations, as appropriate, we may use one of the following recognized valuation methods: the income approach (including discounted cash flows from relief from royalty and excess earnings model), the market approach and/or the replacement cost approach.

	Examples of significant estimates used to value certain intangible assets acquired include but are not limited to:

		•		sales volume, pricing and future cash flows of the business overall

	•		future expected cash flows from customer relationships, and other identifiable intangible assets, including future price levels, rates of increase in revenue and appropriate attrition rate

	•		the acquired company’s brand and competitive position, royalty rate quantum, as well as assumptions about the period of time the acquired brand will continue to benefit to the combined company’s product portfolio

	•		cost of capital, risk-adjusted discount rates and income tax rates
However, different assumptions regarding projected performance and other factors associated with the acquired assets may affect the amount recorded under each type of assets and liabilities, mainly between property plant and equipment, intangibles assets, goodwill and deferred income tax liabilities and subsequent assessment could result in future impairment charges. The purchase price allocation process also entails us to refine these estimates over a measurement period not to exceed one year to reflect new information obtained surrounding facts and circumstances existing at acquisition date.

Acquisitions

Acquisitions	12 Months Ended
Acquisitions	Dec. 31, 2014
Business Combinations [Abstract]
Acquisitions	2)	Acquisitions

	Autocam

	On August 29, 2014, we completed our merger with Autocam Corporation (“Autocam”), for $256,837 in cash and $31,717 in NN stock. Additionally, we assumed $29,848 in Autocam debt and capital lease obligations. Autocam is a global leader in the engineering, manufacture and assembly of highly complex, system critical components for fuel systems, engines and transmission, power steering and electric motors. With the completion of the transaction, NN becomes one of the top global manufacturers in the precision metal components space. Additionally, this acquisition will leverage NN’s and Autocam’s complementary core strengths and values and will position our Precision Metal Components business segment to outgrow its end markets by taking advantage of global market trends in fuel efficient technologies such as gasoline direct injection systems, high-pressure diesel injection systems and variable valve timing.

	The funding of the cash portion of the purchase price and acquisition costs was provided primarily from borrowings, including a $350,000 term loan entered into concurrent with the acquisition. (See Note 7 of the Notes to Consolidated Financial Statements).

	During the fourth quarter of 2014, we finalized our valuation related to the assets acquired and liabilities assumed of Autocam. The facts and circumstances existed at the date of acquisition (August 29, 2014) and, if known would have affected the measurement of the amounts recognized at the date. As a result, we adjusted the preliminary allocation of the purchase price initially recorded at the Autocam acquisition date to reflect these measurement period adjustments.



	The following table summarizes the purchase price allocation for the Autocam merger:



	Fair value of assets acquired and liabilities assumed on August 29, 2014		September 30,			2014				December 31,
			2014			adjustments				2014
						to fair value
	Current assets		$	88,529		$	(1,182	)		$	87,347
	Property, plant, and equipment			146,120			7,065				153,185
	Intangible assets subject to amortization			51,098			562				51,660
	Investment in joint venture			35,595			—				35,595
	Other non-current assets			2,170			3,898				6,068
	Goodwill			77,548			(3,556	)			73,992

	Total assets acquired		$	401,060		$	6,787				407,847

	Current liabilities		$	34,320		$	6,963			$	41,283
	Current maturities of long-term debt			6,547			—				6,547
	Non-current deferred tax liabilities			46,998			(486	)			46,512
	Obligations under capital lease			18,350			—				18,350
	Long-term debt, net of current portion			4,263			—				4,263
	Other non-current liabilities			2,028			310				2,338

	Total liabilities assumed		$	112,506		$	6,787			$	119,293

	Net asset acquired		$	288,554		$	—			$	288,554


	A combination of income, market, and cost approaches were used for the valuation where appropriate, depending on the asset or liability being valued. Valuation inputs in these models and analyses gave consideration to market participant assumptions. Acquired intangible assets are primarily customer relationships and trade names. We have finished our analysis of the Autocam opening balance sheet and consider the purchase price allocation final.

	In connection with the acquisition of Autocam, we recorded goodwill, which represents the excess of the purchase price over the estimated fair value of tangible and intangible assets acquired, net of liabilities assumed. The goodwill is attributed primarily to Autocam as a going concern and the fair value of expected cost synergies and revenues growth from combining the NN and Autocam businesses. The going concern element represents the ability to earn a higher return on the combined assembled collection of assets and businesses of Autocam than if those assets and businesses were to be acquired and managed separately. Other relevant elements of goodwill are the benefits of access to certain markets and the assembled work force. None of the goodwill is expected to be deducted for tax purposes.

	Property, plant and equipment acquired primarily included machinery and equipment for use in manufacturing operations. Additionally, a number of manufacturing sites and related facilities include leasehold improvements were acquired. Property, plant and equipment has been valued using the cost approach supported where available by observable market data which includes consideration of obsolescence. Intangible assets have been valued using the relief from royalty and multi-period excess earnings methods, both forms of the income approach supported by observable market data.

	Related to the acquisition of Autocam, during 2014 we recognized $6,912 in transaction costs. During 2014, we expensed $2,974 of deferred financing costs and make whole interest payments related to the acquisition. Transaction costs were expensed as incurred and are included in the “Acquisition related costs excluded from selling, general and administrative expenses” line item and deferred financing costs are included in the interest expense line items in the Consolidated Statements of Income and Comprehensive Income (Loss). As required by purchase accounting, the acquired inventories were recorded at their estimated fair value. These inventories were sold in the third quarter 2014 resulting in a one-time $1,158 increase in cost of sales. Beginning September 1, 2014, the consolidated results of operations of NN include the results of the acquired Autocam businesses. Since the date of the acquisition, sales revenue of $80,821 and net income of $3,686 (including the $1,158 for the one-time increase in cost of goods sold) has been included in NN’s financial statements.



	The unaudited pro forma financial results for the years ended December 31, 2014 and 2013 combine the consolidated results of NN and Autocam giving effect to the acquisition of Autocam as if it had been completed on January 1, 2013, the beginning of the comparable prior annual reporting period presented. The unaudited pro forma financial results presented below do not include any anticipated synergies or other expected benefits of the acquisition. This unaudited pro forma financial information is presented for informational purposes only and is not indicative of future operations or results had the acquisition been completed as of January 1, 2013.

	The unaudited pro forma financial results include certain adjustments for additional depreciation and amortization expense based upon the fair value step-up and estimated useful lives of Autocam depreciable fixed assets and definite-life amortizable assets acquired in the transaction. The provision for income taxes has also been adjusted for all periods, based upon the foregoing adjustments to historical results.



			Year ended December 31,
			2014			2013
	Pro forma sales		$	659,652		$	606,690
	Pro forma net income		$	19,573		$	3,307

	The pro forma net income for the year ended December 31, 2013 includes certain items, such as financing, integration, and transaction costs historically recorded by NN and Autocam directly attributable to the acquisition, which will not have an ongoing impact. These items include transaction, integration, and financing related costs incurred by NN and Autocam of $9,433 and $3,846, net of tax, respectively during 2014 and reported in the year ended December 31, 2013 pro forma net income above.

	Other Acquisitions

We made three other acquisitions during 2014 that aggregated to $20,995 in net assets acquired. Related to the acquisitions, we incurred transactions costs of $1,242 from third parties during 2014, which were expensed as incurred in acquisition related costs excluded from selling, general and administrative within the Consolidated Statements of Income and Comprehensive Income (Loss).

We have finalized the purchase price allocation for these three acquisitions during our year end closing process.

The following table summarizes the fair values of assets acquired and liabilities assumed at the date of acquisition with any adjustments to fair value since September 30, 2014.



Assets acquired and liabilities assumed		September 30,			2014				December 31,
		2014			adjustments				2014
					to fair value
Current assets		$	5,688		$	(123	)		$	5,565
Property, plant, and equipment			15,367			(31	)			15,336
Intangible assets subject to amortization			2,705			—				2,705
Goodwill			2,038			456				2,494

Total assets acquired		$	25,798		$	302			$	26,100

Current liabilities		$	4,803		$	302			$	5,105

Total liabilities assumed		$	4,803		$	302			$	5,105

Net asset acquired		$	20,995		$	—			$	20,995


The intangible assets subject to amortization are for customer contracts and trade names totaling $2,705 and have weighted average useful lives of approximately 11 years. Goodwill of $2,494 arising from the acquisitions is attributable primarily to the assembled workforce of RFK and strategic market opportunities that are expected to arise from the acquisition of RFK and Chelsea.



In the following paragraphs we provide a brief description of the businesses acquired, reasons for the acquisition and relevant financial information about each business.

Chelsea Grinding (Chelsea)

On July 15, 2014, we purchased Chelsea Grinding for $3,100 in cash. Chelsea is a hydraulic component manufacturer. We acquired Chelsea to achieve access to the adjacent hydraulic component market. Chelsea, which has been completely integrated into our Erwin Plant of the Metal Bearing Components Segment, has contributed revenues of approximately $1,100 from the date of acquisition to December 31, 2014.

RFK Valjcici d. d. Konjic (“RFK”)

On June 20, 2014, we acquired 79.2% of the outstanding shares of RFK Valjcici d. d. Konjic (“RFK”) for $9,756 in cash. RFK is a manufacturer of tapered rollers with operations in Konjic, Bosnia & Herzegovina. Its products, while complementary to NN’s existing roller bearing components, will broaden our product offering and allow penetration into adjacent markets. NN acquired up to 99.7% of the outstanding shares of RFK during the third quarter of 2014 for an additional $2,527 in cash. RFK has contributed revenues and net income of approximately $5,100 and $165, respectively, from the date of acquisition to December 31, 2014. RFK currently exports all of its products, predominately to customers serving the European truck, industrial vehicle and railway markets. NN will continue operations at the existing facilities in Bosnia & Herzegovina and will roll up the operations under our Metal Bearing Components Segment. In addition, we have reported non-controlling interest of $32 for RFK representing the fair value of the 0.30% of the shares outstanding we do not own as of December 31, 2014.

VS Asset Purchase

On January 30, 2014, we purchased the majority of the operating assets of V-S Industries, V-S Precision, LLC and V-S Precision SA de DV (collectively referred to as “VS”) from the secured creditors of V-S Industries for $5,580 in cash and assumed certain liabilities totaling $2,968. This was accounted for as business combination. VS has contributed revenues and net loss of approximately $14,742 and $(1,011), including integration costs of $503 net of tax, respectively, from the date of acquisition to December 31, 2014.

VS is a precision metal components manufacturer that supplies customers in a variety of industries including electric motors, HVAC, power tools, automotive and medical. The acquisition of VS will provide us with a complementary, and broader product offering and will allow penetration into adjacent markets. VS has two locations in Wheeling, Illinois and Juarez, Mexico and will roll up under the Precision Metal Components Segment.

The cash paid to acquire all four businesses totaled $277,832 ($256,837 for Autocam and $20,995 for the others) less cash acquired of $17,640 for a net amount of $260,192. A portion of this amount ($2,528) was reported in cash flows from financing activities as that amount related to acquiring a non-controlling interest in RFK.

Impairment_Charges

Impairment Charges	12 Months Ended
	Dec. 31, 2014
Restructuring and Related Activities [Abstract]
Impairment Charges	3)	Impairment Charges
	Impairments of Goodwill and Other Long-Lived Tangible and Intangible Assets
	For the year ended December 31, 2014, an indefinite lived intangible asset within the Autocam Precision Components Segment was impaired as management is in the process of phasing out the use of the trade name as a result of the Autocam acquisition. As such, an impairment charge of $875 was included in the restructuring and impairment charges line of the Consolidated Statements of Income and Comprehensive Income (Loss).
	For the year ended December 31, 2012, we recorded $967 of non-cash charges related to the further impairment of our former production facility in Kilkenny, Ireland. Based on updated market based information related to commercial property valuation in Ireland, management determined the market value of the building was less than book value and the book value was adjusted accordingly. This impairment charge was reported in the Restructuring and impairment charges line in the Consolidated Statements of Income and Comprehensive Income (Loss).

Accounts_Receivable_and_Sales_

Accounts Receivable and Sales Concentrations	12 Months Ended
Accounts Receivable and Sales Concentrations	Dec. 31, 2014
Receivables [Abstract]
Accounts Receivable and Sales Concentrations	4)	Accounts Receivable and Sales Concentrations


			December 31,
			2014		2013
	Trade		$	98,030	$	59,374
	Less - allowance for doubtful accounts			520		445

	Accounts receivable, net		$	97,510	$	58,929

	Activity in the allowance for doubtful accounts is as follows:


	Description		Balance at		Additions		Write-			Currency			Balance at
			Beginning				offs			Impacts			End of Year
			of Year

	December 31, 2014
	Allowance for doubtful accounts		$	445	$	208	$	(123	)	$	(10	)	$	520


	December 31, 2013
	Allowance for doubtful accounts		$	311	$	177	$	(47	)	$	4		$	445


	December 31, 2012
	Allowance for doubtful accounts		$	438	$	98	$	(224	)	$	(1	)	$	311

	For the years ended December 31, 2014, 2013 and 2012, sales to SKF amounted to $127,946, $132,654, and $124,349 respectively, or 26%, 36%, and 34% of consolidated revenues, respectively. None of our other customers accounted for more than 10% of our net sales in 2014, 2013 or 2012. SKF and NTN/SNR were the only customers with accounts receivable concentration in excess of 10% in 2014 and 2013. The outstanding balance as of December 31, 2014 and 2013 for SKF was $17,510 and $17,005, respectively. The outstanding balance as of December 31, 2013 for NTN/SNR was $6,893. All revenues and receivables related to SKF are in the Metal Bearing Components and Plastic and Rubber Components Segments. All revenues and receivables related to SNR are in the Metal Bearing Components Segment.

Inventories

Inventories	12 Months Ended
Inventories	Dec. 31, 2014
Inventory Disclosure [Abstract]
Inventories	5)	Inventories


			December 31,
			2014		2013
	Raw materials		$	35,191	$	15,448
	Work in process			21,883		9,672
	Finished goods			34,395		29,410

	Inventories		$	91,469	$	54,530

	Inventory on consignment at customers’ sites at December 31, 2014 and 2013 was approximately $5,857 and $4,735, respectively.
	The inventory valuations above were developed using normalized production capacities for each of our manufacturing locations. Any costs from abnormal excess capacity or under-utilization of fixed production overheads are expensed in the period incurred and are not included as a component of inventory valuation.

Property_Plant_and_Equipment

Property, Plant and Equipment	12 Months Ended
Property, Plant and Equipment	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	6)	Property, Plant and Equipment


				December 31,
			Estimated	2014		2013
			Useful Life	2014		2013
	Land owned			$	7,548	$	6,139
	Land under capital lease				2,097		1,437
	Buildings and improvements owned		15-40 years		52,641		45,964
	Buildings under capital lease		20 years		6,225		3,172
	Machinery and equipment		3-12 years		408,299		261,842
	Construction in process				21,027		20,745


					497,837		339,299
	Less - accumulated depreciation				219,395		218,210


	Property, plant and equipment, net			$	278,442	$	121,089

	During the year ended December 31, 2014 we acquired $168,521 in property, plant and equipment with the four acquisitions completed during 2014. (See Note 2 of the Notes to Consolidated Financial Statements).
	For the years ended December 31, 2014, 2013, and 2012, depreciation expense was $ 20,817, $16,957 and $17, 643, respectively.

Debt

Debt	12 Months Ended
Debt	Dec. 31, 2014
Debt Disclosure [Abstract]
Debt	7)	Debt
	Long-term debt and short-term debt at December 31, 2014 and December 31, 2013 consisted of the following:


			December 31,		December 31,
			2014		2013

	Borrowings under our $350,000 Term Loan B bearing interest the greater of 1% or 3 month LIBOR (0.2318% at September 30, 2014) plus an applicable margin of 5.00% at September 30, 2014, expiring August 29, 2021, net of discount of $4,995.		$	340,005	$	—

	Borrowings under our $100,000 ABL Revolver bearing interest at a floating rate equal to LIBOR (0.1565% at September 30, 2014) plus an applicable margin of 1.75% at September 30, 2014, expiring August 29, 2019.			—		—

	Borrowings under our $100,000 revolving credit facility bearing interest at a floating rate equal to LIBOR (0.1565% at September 30, 2014) plus an applicable margin of 1.25% at September 30, 2014, expiring October 26, 2017.			—		10,763

	Borrowings under our $40,000 aggregate principal amount of fixed rate notes bore interest at a fixed rate of 4.89% and matured on April 26, 2014. Annual principal payments of $5,714 began on April 26, 2008 and extend through the date of maturity.			—		5,714

	Borrowings under our $20,000 aggregate principal amount of fixed rate notes bearing interest at a fixed rate of 4.64% maturing on December 20, 2018. Annual principal payments of $4,000 will begin on December 22, 2014 and extend through the date of maturity.			—		20,000

	French Safeguard Obligations (Autocam)			2,560		—

	Brazilian lines of credit and equipment notes (Autocam)			5,304		—

	Chinese line of credit (Autocam)			2,317		—


	Total debt			350,186		36,477

	Less current maturities of long-term debt			22,160		10,477


	Long-term debt, excluding current maturities of long-term debt		$	328,026	$	26,000

	On August 29, 2014, concurrent with the Autocam acquisition, we entered into two new credit facilities consisting of a $350 million term loan facility and a $100 million asset backed revolver (“ABL”). Under the term loan, we received funds of $344,750 net of a discount of $5,250 which is being amortized into interest expense over the life of the term loan. These new facilities were utilized to fund the Autocam acquisition and to provide for short-term cash flow needs. Additionally, these new facilities replaced the $100 million revolving credit facility and the $20 million fixed rate agreement both of which were paid off with proceeds from the term loan. $1,368 in net capitalized loan origination costs related to the $100 million facility was written off as of August 29, 2014. $30 in net capitalized loan origination costs related to the $20 million fixed rate agreements was also written off as of August 29, 2014.
	The $350,000 term loan revolving credit facility may be expanded upon our request with approval of the lenders by up to $50,000 under the same terms and conditions. The term loan has a seven year maturity with a 5% per annum repayment. The term loan agreement is a covenant lite agreement with no financial covenants. The loan agreement does contain customary restrictions on, among other things, additional indebtedness, liens on our assets, sales or transfers of assets, investments, issuance of equity securities, and merger, acquisition and other fundamental changes in our business including a “material adverse change” clause, which if triggered would give the lenders the right to accelerate the maturity of the debt. Costs associated with entering into the revolving credit facility were capitalized and will be amortized into interest expense over the life of the facility. As of December 31, 2014, $7,945 of net capitalized loan origination costs related to the term loan credit facility were recorded on the consolidated balance sheet within other non-current assets.
	The $100,000 ABL may be expanded upon our request with approval of the lenders by up to $50,000 under the same terms and conditions. The ABL has a five year maturity and has one springing financial covenant in the event our availability on the ABL is less than $8,000. The ABL contains customary restrictions on, among other things, additional indebtedness, liens on our assets, sales or transfers of assets, investments, issuance of equity securities, and mergers, acquisitions and other fundamental changes in our business including a “material adverse change” clause, which if triggered would give the lenders the right to accelerate the maturity of the debt. The facility has a swing line feature to meet short term cash flow needs. Any borrowings under this swing line are considered short term. We incurred costs as a result of issuing the ABL which have been recorded on the consolidated balance sheet within other non-current assets and are being amortized over the term of the notes. The unamortized balance at December 31, 2014 was $968.
	We believe the book values of the above credit facilities approximate their fair values given the interest rates are variable and we entered into these facilities very close to the year ended December 31 2014, at the then market rates for a company with our credit profile.
	As part of the merger with Autocam, NN assumed certain foreign credit facilities. These facilities relate to local borrowings in France, Brazil and China. These facilities are with financial institutions in the countries in which foreign plants operate and are meant to fund working capital and equipment purchases in those countries. Below is a description of the credit facilities.
	In 2008, Autocam filed “Procedure de Sauvegarde” (“Safeguard”) on behalf of each of their French subsidiaries, Autocam France, SARL and Bouverat Industries, SAS (“Bouverat”). They reached agreement with their creditors with claims subject to Safeguard protection in 2009. Provisions of the agreements allowed, at each creditor’s option, for the payment of a portion of the obligation in January 2010, or the entire obligation over a ten-year period. The liabilities carry a zero percent interest rate and are being paid annually until 2019. Amounts due as of December 31, 2014, to those creditors opting to be paid over a ten-year period totaled $2,560 and are included in Current Maturities of Long-Term debt ($330) and long-term debt excluding current maturities of long-term debt ($2,230).
	The Brazilian lines of credit include facilities with certain Brazilian banks used to fund working capital needs, while the equipment notes represent borrowings from certain Brazilian banks to fund equipment purchases for Autocam’s Brazilian plants. The lines of credit have interest rates of 10.5% to 21.8%.
	The Chinese line of credit is a working capital line of credit with a Chinese bank bearing an interest rate of 4.95%.
	The aggregate maturities of long-term debt including current portion for each of the five years subsequent to December 31, 2014 are as follows:


	Year ending December 31,
	2015		$	22,160
	2016			18,150
	2017			17,020
	2018			16,186
	2019			14,711
	Thereafter			261,959

	Total		$	350,186


	On June 1, 2004, our wholly owned subsidiary, NN Asia, entered into a twenty year lease agreement with Kunshan Tian Li Steel Structure Co. LTD for the lease of land and building (approximately 110,000 square feet) in the Kunshan Economic and Technology Development Zone, Jiangsu, The People’s Republic of China. The fair value of the land and building were estimated to be approximately $545 and $2,016 (at current exchange rates), respectively and undiscounted annual lease payments are approximately $299 (approximately $5,988 aggregate non-discounted lease payments over the twenty year term). The lease is cancelable after the fifth, ninth, and fourteenth years without payment or penalty by us. In addition, after the end of year five and each succeeding year we can buy the land for a preset price per square meter value and the building for actual cost less depreciation.
	On October 1, 2011, our wholly owned subsidiary, NN Asia, entered into a twenty year lease agreement with Kunshan Tian Li Steel Structure Co. LTD for the lease of land and building adjacent to the current leased facility (approximately 75,000 square feet) in the Kunshan Economic and Technology Development Zone, Jiangsu, The People’s Republic of China. This lease was entered into to expand the production capacity of our current leased facility. The fair value of the land and building were estimated to be approximately $892 and $1,156 (at current exchange rates), respectively and undiscounted annual lease payments are approximately $193 (approximately $3,850 aggregate non-discounted lease payments over the twenty year term). The lease is cancelable after the fifth, ninth, and fourteenth years without payment or penalty by us. In addition, after the end of year five and each succeeding year we can buy the land for a preset price per square meter value and the building for actual cost less depreciation.
	Below are the minimum future lease payments under both capital leases together with the present value of the net minimum lease payments as of December 31, 2014:


	Year ending December 31,
	2015		$	481
	2016			481
	2017			481
	2018			481
	2019			481
Thereafter			3,913

Total minimum lease payments			6,318
Less interest included in payments above			(2,575	)

Present value of minimum lease payments		$	3,743

With the Autocam acquisition, we assumed capital leases on certain buildings and equipment. The cost of the assets subject to capital lease obligations as reflected in Property, Plant and Equipment, net in our Consolidated Balance Sheet was $24,997 as of December 31, 2014. The accumulated depreciation of such assets as reflected in Property, Plant and Equipment, net in our Consolidated Balance Sheet was $618 as of December 31, 2014.
Below are the minimum future lease payments under the assumed capital leases together with the present value of the net minimum lease payments as of December 31, 2014:


Year ending December 31,
2015		$	5,743
2016			4,593
2017			3,587
2018			2,572
2019			816
Thereafter			—

Total minimum lease payments			17,311
Less interest included in payments above			(1,097	)

Present value of minimum lease payments		$	16,214

Employee_Benefit_Plans

Employee Benefit Plans	12 Months Ended
Employee Benefit Plans	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Employee Benefit Plans	8)	Employee Benefit Plans
	We have defined contribution 401(k) profit sharing plans covering substantially all U.S. employees. All employees are eligible for the plans on the first day of the month following their employment date. A participant may elect to contribute between 1% and 60% of their compensation to the plans, subject to Internal Revenue Service (“IRS”) dollar limitations. Participants age 50 and older may defer an additional amount up to the applicable IRS Catch Up Provision Limit. We provide a matching contribution which is determined on an individual, participating company basis. All participant contributions are immediately vested at 100%. Contributions for all U.S. employees were $764, $349 and $335 in 2014, 2013, and 2012, respectively.
	Post-Employment Benefit Liabilities
	We provide certain post-employment benefits to employees at our Pinerolo and Veenendaal plants that are either required by law or are local labor practice. There is a plan at our Pinerolo Plant and at our Veenendaal Plant which are described below.
	In accordance with Italian law, the Company has an unfunded severance plan under which all Italian employees are entitled to receive severance indemnities (Trattamento di Fine Rapporto or “TFR”) upon termination of their employment.
	Effective January 1, 2007, the amount payable based on salary paid is remitted to a pension fund managed by a third party. The severance indemnities paid to the pension fund accrue approximately at the rate of 1/13.5 of the gross salaries paid during the year. The amounts accrued become payable upon termination of the individual employee, for any reason, e.g., retirement, dismissal or reduction in work force. Employees are fully vested in TFR benefits after their first year of service.
	We have a plan that covers our Veenendaal Plant employees that provides an award for employees who achieve 25 or 40 years of service and an award for employees upon retirement. The plan is unfunded and the benefits are based on years of service and rate of compensation at the time the award is paid.
	The amounts shown in the table below represent the actual liabilities at December 31, 2014 and 2013 reported under accrued post-employment benefits in the Consolidated Balance Sheets for both plans combined.


			2014			2013
	Beginning balance		$	6,920		$	6,930
	Amounts accrued			1,111			1,019
	Payments to employees/government managed plan			(1,186	)		(1,331	)
	Foreign currency impacts			(821	)		302

	Ending balance		$	6,024		$	6,920

	Defined Benefit Plan
	Effective with the Autocam acquisition on August 29, 2014, we sponsor a defined benefit pension plan for substantially all employees of the Bouverat, France Plant (the “Pension Plan”). These benefits are calculated based on each employee’s years of credited service and most recent monthly compensation and service category. Employees become vested in accordance with governmental regulations in place at the time of retirement.
	For the purpose of calculating the actuarial present value of the benefit obligation under the Pension Plan, the discount rates assumed were 1.9% for 2014. The compensation growth rate was assumed was 2.9% for 2014. The measurement date was December 31 of 2014.

	Set forth below is projected benefit obligation information for the Pension Plan and the plan activity since we acquired Autocam on August 29, 2014:


			2014

	Accumulated benefit obligation at measurement date		$	1,011
	Effect of salary increases			526

	Projected benefit obligation at measurement date		$	1,537


	Projected benefit obligation at date of acquisition		$	1,549
	Service and interest costs			35
	Actuarial gains (losses)			94
	Benefits paid
	Effect of foreign currency translation gains and other			(141	)

	Projected benefit obligation at measurement date		$	1,537

	Set forth below is net periodic benefit cost information for the Pension Plan for the four month period since the acquisition of Autocam:


			2014

	Service and interest costs		$	35
	Expected return on plan assets			(4	)
	Amortization of prior service costs			6

	Net periodic benefit cost		$	37

	We expect benefit payments under the Pension Plan to be $0 for 2015 and 2016, $16 for 2017, $8 in 2018 and $379 from 2020-2024.
	Set forth below is plan asset information for the Pension Plan:


			2014

	Plan assets at fair value at measurement date		$	589
	Projected benefit obligations at measurement date			(1,537	)

	Funded status		($	948	)


Plan assets at fair value at date of acquisition		$	655
Actual return on plan assets			3
Benefits paid			(12	)
Effect of foreign currency translation gains			(57	)

Plan assets at fair value at measurement date		$	589

The assumed rate of return on assets of the Pension Plan was 2.0% for all periods presented. We have a targeted goal of allocating plan assets one-third to equity and two-thirds to fixed income securities. Actual allocations of Pension Plan assets between equity and fixed income securities were 19% and 81%, respectively, as of December 31, 2014. Our expected funding obligations under the Pension Plan in 2015 is $132.

Stock_Based_Compensation

Stock Based Compensation	12 Months Ended
Stock Based Compensation	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock Based Compensation	9)	Stock Based Compensation
	We recognize compensation expense of all employee and non-employee director share-based compensation awards in the financial statements based upon the fair value of the awards over the requisite service or vesting period, less anticipated forfeitures. We account for stock awards by recognizing the fair value of the awarded stock at the grant date as compensation expense over the vesting period, less anticipated forfeitures.
	In the years ended December 31, 2014, 2013, and 2012, approximately $2,595, $2,239, and $1,788, respectively of compensation expense was recognized in selling, general and administrative expense for all share-based awards. The compensation expense recognized in the years ended December 31, 2014, 2013 and 2012 related to stock options was $1,274, $1,437, and $1,093, respectively. The compensation expense related to stock awards in the years ended December 31, 2014, 2013 and 2012 was $ 1,321, $802, and $695, respectively.
	As of December 31, 2014, we have approximately 1,131 maximum shares that can be issued as options, stock appreciation rights, and/or other stock based awards.
	Stock Option Awards
	Option awards are typically granted to non-employee directors and key employees on an annual basis. A single option grant is typically awarded to eligible employees and non-employee directors each year if and when granted by the Compensation Committee of the Board of Directors and occasionally individual grants are awarded to eligible employees. All employee and non-employee directors are awarded options at an exercise price equal to the closing price of our stock on the date of grant. The term life of options is ten years with vesting periods of generally three years for key employees and one year for non-employee directors. The fair value of our options cannot be determined by market value as they are not traded in an open market. Accordingly, the Black Scholes financial pricing model is utilized to determine fair value based on certain assumptions discussed below.
	During 2014, 2013 and 2012, we granted 109, 354, and 285 options, respectively, to certain key employees and non-employee directors. The weighted average grant date fair value of the options granted during the years ended December 31, 2014, 2013 and 2012 was $9.48, $5.17, and $4.27, respectively. Upon exercise of stock options, new shares of our stock are issued. The weighted average assumptions relevant to determining the fair value at the dates of grant are below:


			2014			2013			2012
	Term			6 years			6 years			6 years
	Risk free interest rate			1.75	%		0.87	%		1.16	%
	Dividend yield			1.43	%		0	%		0	%
	Expected volatility			56.75	%		57	%		50.51	%
	Expected forfeiture rate			3	%		3	%		3	%
	The expected volatility rate is derived from our actual common stock historical volatility over the same time period as the expected term. The volatility rate is derived by mathematical formula utilizing daily closing price data.
	The expected dividend yield is derived by a mathematical formula which uses the expected annual dividends over the expected term divided by the fair market value of our common stock at the grant date.
	The average risk-free interest rate is derived from United States Department of Treasury published interest rates of daily yield curves for the same time period as the expected term.
	The forfeiture rate is determined from examining the historical pre-vesting forfeiture patterns of past option issuances to key employees. While the forfeiture rate is not an input of the Black Scholes model for determining the fair value of the options, it is an important determinant of stock option compensation expense to be recorded.
	The term is derived from using the “Simplified Method” of determining stock option terms as described under the Securities and Exchange Commission’s Staff Accounting Bulletin 107.

	The following table provides a reconciliation of option activity for the year ended December 31, 2014:


	Options		Shares			Weighted-			Weighted-			Aggregate
			(000’s)			Average			Average			Intrinsic
						Exercise			Remaining			Value
						Price			Contractual			$0
									Term
	Outstanding at January 1, 2014			1,233		$	10.65
	Granted			108		$	19.93
	Exercised			(158	)	$	10.9
	Forfeited or expired			(8	)	$	12.62

	Outstanding at December 31, 2014			1,175		$	11.4			6.1		$	10,752	(1)

	Exercisable at December 31, 2014			815		$	11			5.2		$	7,786	(1)


	(1)	The intrinsic value is the amount by which the market price of our stock was greater than the exercise price of any individual option grant at December 31, 2014.
	As of December 31, 2014, there was approximately $778 and $1,511 of unrecognized compensation costs for stock options and restricted stock, respectively, to be recognized over approximately two years.
	Cash proceeds from the exercise of options in the years ended December 31, 2014, 2013, and 2012 totaled approximately $1,671, $4,013, and $22, respectively. For the years ended December 31, 2014, 2013 and 2012, proceeds from stock options were presented exclusive of tax benefits in the Financing Activities section of the Consolidated Statements of Cash Flows. The total intrinsic value of options exercised during the years ended December 31, 2014, 2013 and 2012 was $1,956, $1,416, and $107, respectively.
	Stock Awards
	During the year ended December 31, 2014, 2013 and 2012, we issued 114, 90 and 78 shares, respectively, of our common stock as awards to key employees and non-executive directors. The fair value of the shares issued was determined by using the grant date price of our common stock with a weighted average grant date value of $20.15. The recognized compensation expense for stock awards in the years ended December 31, 2014, 2013, and 2012 was approximately $1,321, $802, and $695, respectively. The shares issued in 2014, 2014 and 2012 vest over three years.

Goodwill_Net

Goodwill, Net	12 Months Ended
Goodwill, Net	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, Net	10)	Goodwill, Net
	We completed our annual goodwill impairment review during the fourth quarters of 2014 and 2013. For the years ended December 31, 2014, 2013 and 2012, we concluded that there were no indicators of impairment at the reporting units with goodwill.
	The changes in the carrying amount of goodwill for the years ended December 31, 2014, 2013 and 2012 are as follows:


	(In thousands)		Metal Bearing			Autocam Precision		Total
			Components Segment			Components
						Segment
	Balance as of January 1, 2013		$	8,254			—	$	8,254
	Currency impacts			370			—	$	370

	Balance as of December 31, 2013		$	8,624			—	$	8,624
	Currency impacts			(1,169	)		—		(1,169	)
	Goodwill acquired in acquisition			2,494			73,992		76,486

	Balance as of December 31, 2014		$	9,949		$	73,992	$	83,941

	The cumulative accumulated impairment charges included in the reported goodwill balances at December 31, 2014, 2013 and 2012 were $40,045 all of which were recorded during the years ended December 31, 2008 and 2007.

	The goodwill acquired in acquisition during 2014 within the Metal Bearing Components segment was acquired with the acquisitions of RFK and Chelsea (see Note 2 of the Notes to Consolidated Financial Statements).
	The goodwill acquired in acquisition during 2014 within the Autocam Precision Components segment was acquired during 2014 with the acquisition of Autocam (see Note 2 of the Notes to Consolidated Financial Statements). The goodwill balance related to the Autocam acquisition is derived from the value of the Autocam reporting unit. This fair value was based in large part on management business plans and projected financial information which are subject to a high degree of management judgment and complexity. Actual results may differ from these projections and the differences may be material leading to a potential impairment of this goodwill if this reporting units future results are not as forecasted.

Intangible_Assets_Net

Intangible Assets, Net	12 Months Ended
	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets, Net	11)	Intangible Assets, Net
	The Autocam Precision Components Segment has an intangible asset not subject to amortization of $900 related to the value of the trade names of Whirlaway. This indefinite lived intangible asset was impaired during the year ended December 31, 2014 as management is in the process of phasing out the use of the trade name as a result of the Autocam acquisition. As such, an impairment charge of $875 was included in the restructuring and impairment charges line of the Consolidated Statements of Income and Comprehensive Income (Loss).
	With the Autocam acquisition the Autocam Precision Components Segment acquired a customer contract intangible asset of $46,200, a trade name intangible asset of $4,100, a developed technology intangible asset of $940, and net favorable leasehold intangible of $420. The intangible assets have preliminary estimated useful lives of 15 years, 15 years and five years, respectively and are subject to amortization of approximately $3,617 a year. (See Note 2 of the Notes to Consolidated Financial Statements).
	The Metal Bearing Components Segment acquired two customer contract intangible assets related to the acquisition of RKF and Chelsea and a trade name intangible asset related to the acquisition of RFK with an aggregate estimated fair value of $2,705. These intangible assets have weighted average useful lives of 10 years and are subject to amortization of $270 per year. (See Note 2 of the Notes to Consolidated Financial Statements).

Segment_Information

Segment Information	12 Months Ended
Segment Information	Dec. 31, 2014
Segment Reporting [Abstract]
Segment Information	12)	Segment Information
	We determined our reportable segments under the provisions of U.S. GAAP related to disclosures about segments of an enterprise. Our three reportable segments are based on differences in product lines.
	All of the facilities in the Metal Bearing Components Segment are engaged in the production of precision steel balls, steel rollers, and metal retainers and automotive specialty products used primarily in the bearing industry. The Plastic and Rubber Components Segment facilities are engaged in the production of plastic retainers for bearing components, automotive components, electronic instrument cases and other molded components used in a variety of industrial and consumer applications and precision rubber bearing seals for the bearing, automotive, industrial, agricultural, and aerospace markets. The Autocam Precision Components Segment is engaged in the design and manufacture of close-tolerance, specialty metal alloy components for mechanical and electromechanical systems using turning, grinding and milling processes. Currently, we manufacture components for use on fuel delivery, electromechanical motor, steering and braking systems for the transportation industry and highly engineered shafts, mechanical components, complex precision assembled and tested parts and fluid system components for the HVAC and fluid power industries. This segment was renamed with the acquisition of Autocam.

	The accounting policies of the segments are the same as those described in the summary of significant accounting policies. In order to enhance the analysis of segment operating performance, during the third quarter of 2014, we amended the metric we use to evaluate segment performance from net income (loss) to income from operations. Additionally, Autocam was added to the Precision Metal Components segment during the third quarter of 2014. The 2014, 2013 and 2012 segment information below has been amended for this change in segment reporting. We account for inter-segment sales and transfers at current market prices. We did not have any individually material inter-segment transactions during 2014, 2013, or 2012.


			Metal Bearing		Autocam		Plastic and		Corporate and			Total
			Components		Precision		Rubber		Consolidations
			Segment		Components		Components
					Segment		Segment

	December 31, 2014
	Net sales		$	278,026	$	177,224	$	33,351	$	—		$	488,601
	Depreciation and amortization			12,000		9,070		1,160		(84	)		22,146
	Income from operations			31,872		15,732		1,231		(21,148	)		27,687
	Interest expense									12,293			12,293
	Income tax (benefit) expense									5,786			5,786
	Net income (loss)									8,217			8,217
	Assets			214,291		444,548		17,196		36,678			712,713
	Expenditures for long-lived assets			10,941		10,947		673		5,041			27,602

	December 31, 2013
	Net sales		$	259,459	$	78,756	$	34,991	$	—		$	373,206
	Depreciation and amortization			11,334		4,313		1,347		(37	)		16,957
	Income from operations			27,380		9,112		592		(9,257	)		27,827
	Interest Expense									2,374			2,374
	Income tax (benefit) expense									8,000			8,000
	Net income (loss)									17,178			17,178
	Assets			197,980		39,432		16,638		8,352			262,402
	Expenditures for long-lived assets			9,250		4,640		1,015		345			15,250

	December 31, 2012
	Net sales		$	252,241	$	76,746	$	41,097	$	—		$	370,084
	Depreciation and amortization			12,060		4,243		1,366		(26	)		17,643
	Income from operations			24,900		6,955		1,807		(8,591	)		25,071
	Interest Expense									3,878			3,878
	Income tax (benefit) expense									(3,927	)		(3,927	)
	Net income (loss)									24,268			24,268
	Assets			198,770		40,727		19,232		6,614			265,343
	Expenditures for long-lived assets			14,875		1,511		703		—			17,089

	The vast majority of the costs related to the merger with Autocam and the other three acquisitions discussed under Note 2 are reported under Corporate and Consolidations. These costs impacted income from operations at Corporate by $9,837. Beginning September 1, 2014, the Autocam Precision Components Segment include the results of the acquired Autocam businesses. Since the date of the acquisition, sales revenue of $80,821 and net income of $3,686 (including the $1,158 for the one-time increase in cost of goods sold) has been included in this segment.


			December 31, 2014				December 31, 2013					December 31, 2012
			Net Sales		Property,		Net Sales		Property,			Net Sales			Property,
					Plant and				Plant and						Plant and
					Equipment,				Equipment,						Equipment,
					Net				Net						Net

	United States		$	204,360	$	129,232	$	140,875	$	42,573		$	144,375		$	42,884

	Europe			167,665		82,783		149,649		57,505			140,208			54,768
	Asia			58,470		32,848		38,233		21,011			39,576			22,035
	Canada			8,657		—		9,415		—			7,464			—
	Mexico			25,900		2,637		21,963		—			24,030			—
	S. America			23,549		30,942		13,071		—			14,431			—

	All foreign countries			284,241		149,210		232,331		78,516			225,709			76,803

	Total		$	488,601	$	278,442	$	373,206	$	121,089		$	370,084		$	119,687

	Due to the large number of countries in which we sell our products, sales to external customers and long-lived assets utilized by us are reported in the above geographical regions.

Income_Taxes

Income Taxes	12 Months Ended
Income Taxes	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income Taxes	13)	Income Taxes

	Income (loss) before provision (benefit) for income taxes for the years ended December 31, 2014, 2013 and 2012 was as follows:



			Year ended December 31,
			2014				2013				2012

	Income (loss) before provision (benefit) for income taxes:
	United States		$	(9,341	)		$	8,259			$	7,385
	Foreign			22,513				16,919				12,956

	Total		$	13,172			$	25,178			$	20,341


	The loss of $9,341 from operations in the United States during 2014, was primarily driven from acquisition related charges of $14,831 (included in selling general and administrative, cost of products sold, and interest expense) of which approximately $6,000 were non-deductible as were as these cost were directly facilitative to the acquisitions.



	Total income tax expense (benefit) for the years ended December 31, 2014, 2013, and 2012 was as follows:



			Year ended December 31,
			2014				2013				2012
	Current:
	U.S. Federal		$	—			$	—			$	(115	)
	State			37				179				345
	Foreign			7,082				4,490				2,910

	Total current expense		$	7,119				4,669				3,140


	Deferred:
	U.S. Federal		$	1,625			$	3,594			$	2,789
	State			(382	)			145				12
	U.S. deferred tax valuation allowance			(1,434	)			(818	)			(9,814	)
	Foreign			(1,142	)			410				(54	)

	Total deferred expense (benefit)			(1,333	)			3,331				(7,067	)


	Total expense (benefit)		$	5,786			$	8,000			$	(3,927	)


	A reconciliation of income taxes based on the U.S. federal statutory rate of 34% for each of the years ended December 31, 2014, 2013 and 2012 is summarized as follows:



			Year ended December 31,
			2014				2013				2012

	Income taxes at the federal statutory rate		$	4,478			$	8,561			$	6,916
	Impact of incentive stock options			(145	)			261				371
	Decrease in U.S. valuation allowance			(1,434	)			(818	)			(12,740	)
	Foreign tax credit expiration			2,736				818				—
	Capital gain on return of basis			—				—				3,079
	State taxes, net of federal taxes			(362	)			198				334
	Non-U.S. earnings taxed at different rates			(1,714	)			(834	)			(1,606	)
	Non-deductible mergers and acquisition costs			1,971				—				—
	R&D Tax credit			(529	)			—				—
	Joint Venture dividend			737				—				—
	Change in uncertain tax positions			—				32				(115	)
Other permanent differences, net			48				(218	)			(166	)

		$	5,786			$	8,000			$	(3,927	)


The 2014 effective tax rate of 44% reflects the impact of two items related to the merger and acquisition activity in 2014 including (1) $1,971 for non-deductible third party merger and acquisition as these cost were directly facilitative to the acquisitions; and (2) $1,302 for the expiration of foreign tax credits that could not be utilized during 2014 because of the merger related acquisition costs as discussed below. In addition, the rate reflects an offset to the items above for the impact of foreign earnings taxed at lower rates of $1,714.

The 2013 effective tax rate of 32% reflects the impact of foreign earnings being taxed at lower rates of $834.

The 2012 effective tax rate of (19)% reflects the reversal of the valuation reserve on U.S. deferred tax assets of $12,740 and the impact of foreign earnings taxed at lower rates of $1,606.



The tax effects of the temporary differences as of December 31, 2014, 2013 and 2012 are as follows:



		December 31,
		2014				2013				2012
Deferred income tax liabilities:
Tax in excess of book depreciation		$	35,411			$	6,673			$	6,670
Goodwill			1,949				2,213				1,987
Intangible assets			15,944				—				—
Other deferred tax liabilities			1,924				63				112

Gross deferred income tax liabilities			55,228				8,949				8,769

Deferred income tax assets:
Goodwill			2,411				3,215				4,141
Inventories			2,035				836				768
Pension/Personnel accruals			3,029				856				921
Net operating loss carry forwards			1,196				1,351				3,682
Foreign tax credits			290				3,026				3,844
Guarantee claim deduction			1,141				1,141				1,141
Credit carry forwards			1,853				—				—
Accruals and reserves			—				114				293
Other deferred tax assets			1,926				832				550

Gross deferred income tax assets			13,881				11,371				15,340
Valuation allowance on deferred tax assets			—				(1,434	)			(2,252	)


Net deferred income tax assets			13,881				9,937				13,088


Net deferred income tax assets (liabilities)		$	(41,347	)		$	988			$	4,319


With the Autocam acquisition we assumed $43,803 in net deferred tax liabilities primarily related to book and tax basis differences in fixed assets and intangibles (excluding goodwill).

As realization of certain deferred tax assets is not assured, management believes it is more likely than not that those net deferred tax assets will be realized. However, the amount of the deferred tax assets considered realizable could be reduced based on changing conditions. Below is a summary of the activity in the total valuation allowances during the years ended December 31, 2014, 2013 and 2012:



		Balance at				Additions				Recoveries				Balance at End
		Beginning of												of Year
		Year

2014		$	1,434			$	—			$	(1,434	)		$	—
2013		$	2,252			$	—			$	(818	)		$	1,434
2012		$	12,066			$	—			$	(9,814	)		$	2,252

During 2014, the valuation allowance of $1,434 on our previously recognized foreign tax credits was reduced by the full $1,434 for credits which expired as of December 31, 2014. In addition to the foreign tax credits with the full valuation allowance, $1,302 in foreign tax credits expired unused as of December 31, 2014. These foreign tax credits were not utilized during 2014, as management expected, due to the large amount of non-deductible mergers and acquisition costs incurred related to the four acquisitions completed in 2014. The remaining foreign tax credits, net operating loss and credit carry forwards are expected to be utilized before expiration. We record a valuation allowance when it is “more likely than not” that some portion or all of the deferred income tax assets will not be realized. In reaching this determination, we consider the future reversals of taxable temporary differences, future taxable income, exclusive of taxable temporary differences and carry forwards, taxable income in prior carryback years and tax planning strategies.

During fiscal year 2012 the Company after considering all relevant factors and objectively verifiable evidence concluded that it is more likely than not that the majority of our deferred tax assets will be realized in future years and reversed $8,512 of the valuation allowance. This was primarily based on the pretax profit of our U.S. based companies increasing to approximately $7,400 as a result of operational improvements in our Precision Metal Components Segment. This brought the combined 2012 and 2011 pre-tax incomes to approximately $9,000. Additionally, during the fourth quarter of 2012 we utilized approximately $9,000 of net operating losses to offset tax expense related to certain previously earned income of our foreign holding company, as discussed below. This positive evidence coupled with estimates within our U.S. based businesses of fully utilizing our net operating losses in 2013 and 2014 provided enough positive evidence, in the opinion of management, to overcome the negative evidence of the cumulative pre-tax losses in 2009 and 2010.

Unremitted earnings of subsidiaries outside the United States are considered to be reinvested indefinitely at December 31, 2014. It is not practicable to determine the deferred tax liability for temporary differences related to those unremitted earnings. There has been no change in our long term international expansion plans as of December 31, 2014 our intent and ability is to indefinitely reinvest our foreign earnings. We base this assertion on two factors; (1) our intention to invest in foreign countries that are strategically important to our Metal Bearing Components Segment business and our Autocam Precision Components business. With the acquisitions completed in 2014, we have significantly expanded our international base of operations adding subsidiaries in Mexico, Bosnia and Herzegovina, Brazil, Poland, France and China which will require more foreign investment; (2) we have sufficient access to funds in the U.S. through projected free cash flows and the availability of our US credit facilities to fund currently anticipated domestic operational and investment needs.

On December 27, 2012, our foreign holding company declared a distribution of approximately $48,000 to its U.S. parent company NN, Inc. The vast majority of this distribution was a proportional return of investment basis in our Western European subsidiaries. Approximately $9,000 of the distribution pertained to earnings and profits earned by this holding company in previous years. The approximately $9,000 of earning and profits was included in our computation of year ended 2012 taxes and the tax rate resulting in an impact of $3,079. There were two main factors influencing our decision to consider this return of basis. First, there was a desire to reduce the amount of basis in our European subsidiaries recorded on the U.S. parent company’s financial statements considering the downsizing of our European production capacity over the last few years. The second factor was proposed federal tax legislation which, if enacted, could significantly increase the tax cost of returning this basis after 2012.

A reconciliation of the beginning and ending amounts of unrecognized tax benefits, excluding interest and penalties for the years ended December 31, 2014, 2013 and 2012 is as follows:



		2014				2013				2012

Beginning balance		$	873			$	873			$	988
Additions for tax positions of prior years			3,589				—				428
Reductions for tax positions of prior years			(628	)			—				(543	)

Ending balance		$	3,834			$	873			$	873


As of December 31, 2014, the $3,834 of unrecognized tax benefits would, if recognized, impact our effective tax rate. The addition for tax positions of prior years was added as part of the purchase price allocation of Autocam and was included in the fair value of assets acquired and liabilities assumed. (See Note 2 of Notes to Consolidated Financial Statements.)



Interest and penalties related to federal, state, and foreign income tax matters are recorded as a component of the provision for income taxes in our statements of income. During 2014, we accrued $31 in foreign interest and $17 in US interest. During 2013, we accrued $32 in foreign interest and penalties. During 2012, we had an increase in foreign interest and penalties of $443 and a decrease in federal and state interest and penalties of $245 as older uncertain items were eliminated due to the tax years being closed or risk being mitigated. As of December 31, 2014, the total amount accrued for interest and penalties was $1,003.

We or our subsidiaries file income tax returns in the U.S. federal jurisdiction, and in various states and foreign jurisdictions. With few exceptions, we are no longer subject to federal, state and local income tax examinations by tax authorities for years before 2011. We are no longer subject to non-U.S. income tax examinations within various European Union countries for years before 2009. We do not foresee any significant changes to our unrecognized tax benefits within the next twelve months.

Reconciliation_of_Net_Income_P

Reconciliation of Net Income Per Share	12 Months Ended
Reconciliation of Net Income Per Share	Dec. 31, 2014
Earnings Per Share [Abstract]
Reconciliation of Net Income Per Share	14)	Reconciliation of Net Income Per Share


			Year ended December 31,
			2014		2013		2012

	Net income		$	8,217	$	17,178	$	24,268

	Weighted average shares outstanding			17,887		17,176		17,009
	Effective of dilutive stock options			366		84		105


	Diluted shares outstanding			18,253		17,260		17,114


	Basic net income per share		$	0.46	$	1	$	1.43


	Diluted net income per share		$	0.45	$	1	$	1.42

	Excluded from the dilutive shares outstanding for the years ended December 31, 2014, 2013, and 2012 were 98, 1,148, and 1,187 of anti-dilutive options, respectively, which had per share exercise prices ranging from of $19.63 to $22.69 for the year ended December 31, 2014, $8.54 to $14.13 for the year ended December 31, 2013 and $8.54 to $14.13 for the year ended December 31, 2012.

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	15)	Commitments and Contingencies
	We have operating lease commitments for machinery, office equipment, vehicles, manufacturing and office space which expire on varying dates. Rent expense for 2014, 2013 and 2012 was $4,455, $2,325, and $2,375, respectively. The following is a schedule by year of future minimum lease payments as of December 31, 2014 under operating leases that have initial or remaining non-cancelable lease terms in excess of one year.


	Year ending December 31,

	2015		$	5,434
	2016			5,112
	2017			3,430
	2018			2,214
	2019			1,831
	Thereafter			5,454


	Total minimum lease payments		$	23,475

	Brazil ICMS Tax Matter
	Prior to our acquisition of Autocam on August 29, 2014, Autocam’s Brazilian subsidiary received notification from the tax authorities regarding ICMS (State Value Added Tax or VAT) tax credits claimed on intermediary materials (tooling and perishable items) used in the manufacturing process. The state tax authority notification disallowed state ICMS credits claimed on intermediary materials based on the argument that these items are not intrinsically related to the manufacturing processes. Autocam Brazil filed an administrative defense with the São Paulo state tax authority arguing, among other matters, that it should qualify for ICMS tax credit, contending that the intermediary materials are directly related to the manufacturing process.
	The Company believes it has substantial legal and factual defenses and plans to defend its interests vigorously. While we believe a loss is not probable we estimate the range of possible loss related to this assessment is from $0 to $6,000. No amount has been accrued at December 31, 2014 for this matter.
	NN, Inc. is entitled to indemnification from the former shareholders of Autocam, subject to the limitations and procedures set forth in the agreement and plan of merger. Management believes the indemnification would include amounts owed for the tax, interest and penalties related to the Brazil ICMS matter.
	All other legal matters
	All other legal proceedings are of an ordinary and routine nature and are incidental to our operations. Management believes that such proceedings should not, individually or in the aggregate, have a material adverse effect on our business, financial condition, results of operations, or cash flows. In making that determination, we analyze the facts and circumstances of each case at least quarterly in consultation with our attorneys and determine a range of reasonably possible outcomes. The procedures performed include reviewing attorney and plaintiff correspondence, reviewing any filings made and discussing the facts of the case with local management and legal counsel. We have recognized loss contingencies of approximately $0 and $200 at December 31, 2014 and December 31, 2013, respectively, which we believe are adequate to cover all probable liabilities to be incurred by all of the cases in the aggregate.
	Due to the impacts of the global economic recession and the resulting reduction in revenue and operating losses, our wholly owned German subsidiary Kugelfertigung Eltmann GbmH (“Eltmann” or “Eltmann Plant”) sustained a significant weakening of its financial condition and as a result, became technically insolvent at which point it was required to file for bankruptcy under German bankruptcy law. The filing was made in the bankruptcy court in Germany on January 20, 2011. As of this date, NN lost the ability to control or manage Eltmann as a result of the bankruptcy court trustee taking over effective control and day to day management of this subsidiary. As a result of loss of control of this subsidiary, NN deconsolidated the assets and liabilities of Eltmann from our Consolidated Financial Statements effective January 20, 2011. Although the bankruptcy trustee released us from all claims related to the Eltmann bankruptcy, effective October 15, 2013, until such court proceedings are finalized, we will not be able to determine definitively if any related liabilities and contingent obligations will remain our responsibility. The ultimate impact on NN of Eltmann filing for bankruptcy will depend on the findings of the bankruptcy court. However, until such court proceedings are finalized, we will not be able to determine what liabilities and contingent obligations, if any, might remain as the responsibility of NN. Under advice from legal counsel, NN does not expect any further significant impacts on our consolidated financial statements as a result of the liquidation of this subsidiary.

Investment_in_NonConsolidated_

Investment in Non-Consolidated Joint Venture	12 Months Ended
Investment in Non-Consolidated Joint Venture	Dec. 31, 2014
Equity Method Investments and Joint Ventures [Abstract]
Investment in Non-Consolidated Joint Venture	16)	Investment in Non-Consolidated Joint Venture

	As part of the Autocam acquisition, we acquired a 49% investment in a joint venture with an unrelated entity called Wuxi Weifu Autocam Precision Machinery Company, Ltd. (“JV”), a Chinese company located in the city of Wuxi, China. As part of the purchase price allocation, the joint venture investment has been stated at a fair value of $35,595 determined by a market based multiple of earnings before interest, taxes, depreciation and amortization and a discounted cash flows analysis. The JV is jointly controlled and managed and is being accounted for under the equity method.

	Below are the components of our JV investment balance at December 31, 2014 since the date of acquisition August 29, 2014:



	Beginning Balance		$	35,595
	Dividends received			(2,538	)
	Our share of cumulative earnings			1,646

	Ending Balance		$	34,703


	Set forth below is summarized balance sheet information for the JV:



			December 31,
			2014
	Current assets		$	24,140
	Non-current assets			21,519

	Total assets		$	45,659


	Current liabilities		$	14,162

	Total liabilities		$	14,162


	No dividends were declared by JV during the four months ended December 31, 2014. Our 49% ownership interest in this amount will be received by us in 2015, net of a 10% withholding tax levied by the Chinese government. We had sales to JV of $36 during the four months ended December 31, 2014. Amounts due to us from JV were $154 as of December 31, 2014. The JV had net sales in 2014 of $50,466 and net income of $9,004.

Quarterly_Results_of_Operation

Quarterly Results of Operations (Unaudited)	12 Months Ended
Quarterly Results of Operations (Unaudited)	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Quarterly Results of Operations (Unaudited)	17)	Quarterly Results of Operations (Unaudited)
	The following summarizes the unaudited quarterly results of operations for the years ended December 31, 2014 and 2013.


			Year ended December 31, 2014
			March 31		June 30		Sept. 30			Dec. 31
	Net sales		$	102,528	$	106,680	$	125,632		$	153,761
	Income from operations			8,338		8,237		2,552			8,560
	Net income			5,238		5,200		(3,840	)		1,619
	Basic net income per share			0.3		0.29		(0.21	)		0.09
	Diluted net income per share			0.29		0.29		(0.21	)		0.08

	Weighted average shares outstanding:
	Basic number of shares			17,656		17,779		17,979			18,970
	Effect of dilutive stock options			306		393		—			347


	Diluted number of shares			17,962		18,172		17,979			19,317



			Year ended December 31, 2013
			March 31		June 30		Sept. 30			Dec. 31

	Net sales		$	93,797	$	96,305	$	93,023		$	90,081
	Income from operations			5,639		7,920		7,794			6,474
	Net income			2,871		4,770		5,052			4,485
	Basic net income per share			0.17		0.28		0.29			0.25
	Diluted net income per share			0.17		0.28		0.29			0.25

	Weighted average shares outstanding:
	Basic number of shares			17,055		17,136		17,302			17,527
	Effect of dilutive stock options			107		36		148			290


	Diluted number of shares			17,162		17,172		17,450			17,817

	The third and fourth quarters of 2014 were impacted by merger and acquisition related costs of $8,407 and $1,473, respectively, pre-tax and $7,319 and $3,199, respectively, after-tax related to the four acquisitions closed during 2014. Additionally, the third quarter was negatively impacted by $2,974 in pre-tax costs and $1,903 in after-tax costs incurred related to writing-off debt issuance costs and make whole interest payments to our former lenders related to the new debt entered into for the Autocam acquisition.
	The first quarter of 2013 was unfavorably impacted by $350 of after tax foreign exchange losses on intercompany loans and by $399 in after tax restructuring and non-operating items.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income	12 Months Ended
	Dec. 31, 2014
Text Block [Abstract]
Accumulated Other Comprehensive Income	18)	Accumulated Other Comprehensive Income
	The majority of our Accumulated Other Comprehensive Income balance relates to foreign currency translation of our foreign subsidiary balances. During the year ended December 31, 2014, we had other comprehensive loss of $17,731 due to foreign currency translations and a $431 loss due to change in fair value of interest rate hedge. During the year ended December 31, 2013, we had other comprehensive income $3,899 due to foreign currency translations. During the year ended December 31, 2012, we had other comprehensive income $2,806 due to foreign currency translations. Income taxes on the foreign currency translation adjustments in other comprehensive income were not recognized because the earnings are intended to be indefinitely reinvested in those operations.

Interest_Rate_Hedging

Interest Rate Hedging	12 Months Ended
Interest Rate Hedging	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Interest Rate Hedging	19)	Interest Rate Hedging
	Our policy is to manage interest expense using a mix of fixed and variable rate debt. To manage this mix effectively, we may enter into interest rate swaps in which the we agree to exchange the difference between fixed and variable interest amounts calculated by reference to an agreed upon notional principal amount.
	Effective December 16, 2014, we entered into a $150,000 swap that will go into effect on December 29, 2015 (one year delayed start), at which time our rate will be locked at 7.216% until December 31, 2018. Prior to December 16, 2014, we did not have any existing interest rate hedges. The hedge instrument will be 100% effective and as such the mark to market gains or losses on this hedges will be included in accumulated other comprehensive income (loss) to the extent effective, and reclassified into interest expense over the term of the related debt instruments.

	The table below summarizing the fair value measurement of this swap as of December 31, 2014 valued on a recurring basis on a gross basis:


	(Dollars in thousands)					Fair Value Measurements at December 31, 2014
	Description		December 31,			Quoted Prices in		Significant Other				Significant
			2014			Active Markets		Observable				Unobservable
						for Identical		Inputs (Level 2)				Inputs (Level 3)
						Assets (Level 1)
	Derivative Assets		$	867		$	—	$	867			$	—
	Derivative Liabilities			(1,298	)		—		(1,298	)			(—	)

			$	(431	)	$	—	$	(431	)		$	—

	The interest rate swap derivatives are classified as Level 2. Level 2 fair value is based on estimates using standard pricing models. These standard pricing models use inputs which are derived from or corroborated by observable market data such as interest rate yield curves, index forward curves, discount curves, and volatility surfaces. Counterparties to these derivative contracts are highly rated financial institutions which we believe carry only a minimal risk of nonperformance.
	We have elected to present the derivative contracts on a gross basis in the Consolidated Statements of Financial Position. Had we chosen to present the derivatives contracts on a net basis, we would have a derivative in a net liability position of $431 as of December 31, 2014. The Company does not have any cash collateral due under such agreements.
	Derivatives’ Hedging Relationships


	(Dollars in millions)		Amount of after tax of gain/					Location of gain/(loss)		Pre-tax amount of gain/(loss)
			(loss) recognized in Other					reclassified from		reclassified from Accumulated
			Comprehensive Income on					Accumulated Other		Other Comprehensive Income
			Derivatives (effective portion)					Comprehensive		into Income (effective portion)
								Income into Income
	Derivatives’ Cash Flow Hedging Relationships		December 31,			December 31,		(effective portion)		December 31,				December 31,
	Derivatives’ Cash Flow Hedging Relationships		2014			2013				2014				2013

	Forward starting interest rate swap contracts		$	(431	)	$	—	Interest Expense		$	—			$	—

			$	(431	)	$	—			$	—			$	—

Summary_of_Significant_Account1

Summary of Significant Accounting Policies and Practices (Policies)	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Description of Business		a)	Description of Business
	NN, Inc. (“NN”, “the Company”, “we”, “our” or “us”) is a manufacturer of precision balls, cylindrical and tapered rollers, bearing retainers, plastic injection molded products, precision bearing seals and precision metal components. Our balls, rollers, retainers, and bearing seals are used primarily in the domestic and international anti-friction bearing industry. Our plastic injection molded products are used in the bearing components, automotive components, electronic instrument cases and other molded components used in a variety of applications. The precision metal components products are close-tolerance, specialty metal alloy components for mechanical and electromechanical systems using turning, grinding and milling processes. We manufacture components for use on fuel delivery, electromechanical motor, steering and braking systems for the transportation industry, the HVAC industry, fluid power and diesel engine industries.
Cash		b)	Cash
	The Company considers all highly liquid investments with an original maturity of three months or less as cash equivalents.
Inventories		c)	Inventories
	Inventories are stated at the lower of cost or market. Cost is determined using the average cost method. Our policy is to expense abnormal amounts of idle facility expense, freight, handling cost, and waste. In addition, we allocate fixed production overheads based on the normal production capacity of our facilities. Inventory valuations were developed using normalized production capacities for each of our manufacturing locations and the costs from excess capacity or under-utilization of fixed production overheads were expensed in the period incurred and are not included as a component of inventory valuation.
	Inventories also include tools, molds and dies in progress that we are producing and will ultimately sell to our customers. This activity is principally related to our Plastic and Rubber Components and Precision Metal Components Segments. These inventories are carried at the lower of cost or market.
Property, Plant and Equipment		d)	Property, Plant and Equipment
	Property, plant and equipment are stated at cost less accumulated depreciation. Assets to be disposed of are stated at lower of depreciated cost or fair market value less estimated selling costs. Expenditures for maintenance and repairs are charged to expense as incurred. Major renewals and betterments are capitalized. When a property item is retired, its cost and related accumulated depreciation are removed from the property accounts and any gain or loss is recorded in the consolidated statements of income and comprehensive income. We review the carrying values of long-lived assets for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. Property, plant and equipment includes tools, molds and dies principally used in our Plastic and Rubber Components and Precision Metal Components Segments that are our property.
	Depreciation is provided on the straight-line method over the estimated useful lives of the depreciable assets for financial reporting purposes. For leasehold improvements and buildings under capital lease, we depreciate these over the shorter of useful lives or the lease term. In the event we abandon and cease to use certain property, plant, and equipment, depreciation estimates are revised and, in most cases, depreciation expense will be accelerated to reflect the shortened useful life of the asset.
Revenue Recognition		e)	Revenue Recognition
	We recognize revenues based on the stated shipping terms with customers when these terms are satisfied and the risks of ownership are transferred to the customers. We have an inventory management program for certain Metal Bearing Components Segment customers whereby revenue is recognized when products are used by customers from consigned stock, rather than at the time of shipment. Under both circumstances, revenue is recognized when persuasive evidence of an arrangement exists, delivery has occurred, the sellers’ price is fixed and determinable and collectability is reasonably assured.
Accounts Receivable		f)	Accounts Receivable
	Accounts receivable are recorded upon recognition of a sale of goods and ownership and risk of loss is assumed by the customer. Substantially all of our accounts receivable are due primarily from the core served markets. In establishing allowances for doubtful accounts, we perform credit evaluations of our customers, considering numerous inputs when available including the customers’ financial position, past payment history, relevant industry trends, cash flows, management capability, historical loss experience and economic conditions and prospects. Accounts receivable are written off or allowances established when considered to be uncollectible or at risk of being uncollectible, respectively.
Income Taxes		g)	Income Taxes
	Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carry forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. Valuation allowances are recorded to reduce deferred tax assets when it is more likely than not that a tax benefit will not be realized. Provision has not been made for income taxes on unremitted earnings of foreign subsidiaries as these earnings are deemed to be permanently reinvested. We recognize income tax positions that meet the more likely than not threshold and accrue interest and potential penalties related to unrecognized income tax positions which are recorded as a component of the provision (benefit) for income taxes.
Net Income Per Common Share		h)	Net Income Per Common Share
	Basic income per share reflects reported earnings divided by the weighted average number of common shares outstanding. Diluted income per share include the effect of dilutive stock options, unvested restricted stock (if any) and the respective tax benefits, unless inclusion would not be dilutive.
Share Based Compensation		i)	Share Based Compensation
	The cost of stock options and stock awards are expensed as compensation expense over the vesting periods based on the fair value at the grant date. (See Note 8 of the Notes to the Consolidated Financial Statements) We use the Black Scholes financial pricing model to determine the fair value of our stock options as our options are not traded in open markets.
	We account for stock awards by recognizing compensation expense ratably over the vesting period as specified in the award. Compensation expense to be recognized is based on the stock price at date of grant.
Principles of Consolidation		j)	Principles of Consolidation
	Our consolidated financial statements include the accounts of NN, Inc. and its subsidiaries. All of our subsidiaries are 100% owned (except for RFK which we own 99.7%) and all are included in the consolidated financial statements for the years end December 31, 2014, 2013, and 2012. All significant inter-company profits, transactions, and balances have been eliminated in consolidation. With the acquisition of Autocam Corporation (see Note 2) we acquired a 49% interest in a Chinese joint venture. This joint venture is not consolidated within the financial statements of NN, Inc. and is accounted for under the equity method (see Note 16).
Foreign Currency Translation		k)	Foreign Currency Translation
	Assets and liabilities of our foreign subsidiaries are translated at current exchange rates, while revenue, costs and expenses are translated at average rates prevailing during each reporting period. Translation adjustments arising from the translation of foreign subsidiary financial statements are reported as a component of other comprehensive income and accumulated other comprehensive income within stockholders’ equity. In addition, transactions denominated in foreign currencies, including intercompany transactions, are initially recorded at the current exchange rate at the date of the transaction. The balances are adjusted to the current exchange rate as of each balance sheet date and as of the date when the transaction is consummated. Transaction gains or losses, excluding intercompany loan transactions, are expensed in either cost of products sold or selling, general and administrative lines in the Consolidated Statements of Income and Comprehensive Income (Loss) as incurred and were immaterial to the years ended December 31, 2014, 2013 and 2012. Transaction gains or losses on intercompany loan transactions are recognized in the other income, net line in the Consolidated Statements of Income and Comprehensive Income (Loss) as incurred.
Goodwill and Other Indefinite Lived Intangible Assets		l)	Goodwill and Other Indefinite Lived Intangible Assets
	We recognize the excess of the purchase price of an acquired entity over the fair value of the net identifiable assets as goodwill. Goodwill is tested for impairment on an annual basis as of October 1 and between annual tests if a triggering event occurs. The impairment procedures are performed at the reporting unit level for the reporting units that have goodwill. In September 2011, the FASB issued a revised accounting standard, intended to reduce the cost and complexity of the annual goodwill impairment test by providing entities an option to perform a “qualitative” assessment to determine whether further impairment testing is necessary. Specifically, an entity has the option to first assess qualitative factors to determine whether it is necessary to perform the current two-step test. If an entity believes, as a result of its qualitative assessment, that it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, the quantitative impairment test is required. Otherwise, no further testing is required. For the years ended, December 31, 2014 and 2013, we determined it was more appropriate to perform a full step 1 goodwill test. The decision to perform a qualitative assessment or a complete step 1 analysis is an annual decision made by management. Based on the results of the step 1 analysis fair value of the reporting units exceeded the carrying value of the reporting units at December 31, 2014 and 2013.
	If the qualitative assessment indicates it is more likely than not that the fair value is less than the carrying value, U.S. GAAP prescribes a two-step process for testing for goodwill impairments. The first step is to determine if the carrying value of the reporting unit with goodwill is less than the related fair value of the reporting unit. The fair value of the reporting unit is determined through use of discounted cash flow methods and market based multiples of earning and sales methods obtained from a grouping of comparable publicly trading companies. We believe this methodology of valuation is consistent with how market participants would value reporting units. The discount rate and market based multiples used are specifically developed for the unit tested regarding the level of risk and end markets served. Even though we do use other observable inputs (Level 2 inputs) the calculation of fair value for goodwill would be most consistent with Level 3 inputs.
	If the carrying value of the reporting unit including goodwill is less than fair value of the reporting unit, the goodwill is not considered impaired. If the carrying value is greater than fair value then the potential for impairment of goodwill exists. The potential impairment is determined by allocating the fair value of the reporting unit among the assets and liabilities based on a purchase price allocation methodology as if the reporting unit was acquired in a business combination. The fair value of the goodwill is implied from this allocation and compared to the carrying value with an impairment loss recognized if the carrying value is greater than the implied fair value.
	We base our fair value estimates, in large part, on management business plans and projected financial information which are subject to a high degree of management judgment and complexity. Actual results may differ from projections and the differences may be material.
	Our indefinite lived intangible asset is accounted for similarly to goodwill. This asset is tested for impairment at least annually by comparing the fair value to the carrying value, using the relief from royalty rate method, and if the fair value is less than the carrying value, an impairment charge is recognized for the difference. We elected to use Step 1 testing even though a qualitative approach was available to us.
Impairment of Long-Lived Assets and Long-Lived Assets to Be Disposed Of		m)	Impairment of Long-Lived Assets and Long-Lived Assets to Be Disposed Of
	Long-lived tangible and intangible assets subject to amortization are tested for recoverability when changes in circumstances indicate the carrying value of these assets may not be recoverable. A test for recoverability is also performed when management has committed to a plan to dispose of a reporting unit or asset group. Assets to be held and used are tested for recoverability when indications of impairment are evident. Recoverability of a long-lived tangible and intangible asset is evaluated by comparing its carrying value to the future estimated undiscounted cash flows expected to be generated by the asset or asset group. If the asset is not recoverable the asset is considered impaired and adjusted to fair value which is then depreciated/amortized over its remaining useful life. Assets to be disposed of are carried at the lesser of carrying value or fair value less costs of disposal.
Use of Estimates in the Preparation of Financial Statements		n)	Use of Estimates in the Preparation of Financial Statements
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Fair Value Measurements		o)	Fair Value Measurements
	Fair value principles prioritize valuation inputs across three broad levels. Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument. Level 3 inputs are unobservable inputs based on the assumptions used to measure assets and liabilities at fair value. An asset or liability’s classification within the various levels is determined based on the lowest level input that is significant to the fair value measurement.
Recently Issued Accounting Standards		p)	Recently Issued Accounting Standards
	In May 2014, the FASB and International Accounting Standards Board jointly issued new principles-based accounting guidance for revenue recognition that will supersede virtually all existing revenue guidance. The core principle of this guidance is that 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 and services. To achieve the core principle, the guidance establishes the following five steps: 1) identify the contract(s) with a customer, 2) identify the performance obligation in the contract, 3) determine the transaction price, 4) allocate the transaction price to the performance obligations in the contract, and 5) recognize revenue when (or as) the entity satisfies a performance obligation. The guidance also details the accounting treatment for costs to obtain or fulfill a contract. Lastly, disclosure requirements have been enhanced to provide sufficient information to enable users of financial statements to understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. This guidance is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Early application is not 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.
Business Combinations		q)	Business Combinations
	We allocate the total purchase price of the acquired tangible and intangible assets acquired and liabilities assumed based on their estimated fair values as of the business combination date, with the excess purchase price recorded as goodwill. The purchase price allocation process required us to use significant estimates and assumptions, including fair value estimates, as of the business combination date. Although we believe the assumptions and estimates we have made are reasonable and appropriate, they are based in part on historical experience and information obtained from management of the acquired company, in part based on valuation models that incorporate projections of expected future cash flows and operating plans and are inherently uncertain. Valuations are performed by management or third party valuation specialists under management’s supervision. In determining the fair value of assets acquired and liabilities assumed in business combinations, as appropriate, we may use one of the following recognized valuation methods: the income approach (including discounted cash flows from relief from royalty and excess earnings model), the market approach and/or the replacement cost approach.

	Examples of significant estimates used to value certain intangible assets acquired include but are not limited to:

		•		sales volume, pricing and future cash flows of the business overall

		•		future expected cash flows from customer relationships, and other identifiable intangible assets, including future price levels, rates of increase in revenue and appropriate attrition rate

		•		the acquired company’s brand and competitive position, royalty rate quantum, as well as assumptions about the period of time the acquired brand will continue to benefit to the combined company’s product portfolio

		•		cost of capital, risk-adjusted discount rates and income tax rates
	However, different assumptions regarding projected performance and other factors associated with the acquired assets may affect the amount recorded under each type of assets and liabilities, mainly between property plant and equipment, intangibles assets, goodwill and deferred income tax liabilities and subsequent assessment could result in future impairment charges. The purchase price allocation process also entails us to refine these estimates over a measurement period not to exceed one year to reflect new information obtained surrounding facts and circumstances existing at acquisition date.

Acquisitions_Tables

Acquisitions (Tables)	12 Months Ended
Acquisitions (Tables)	Dec. 31, 2014
Autocam [Member]
Summary of Estimated Fair Values of Assets Acquired and Liabilities Assumed	The following table summarizes the purchase price allocation for the Autocam merger:


	Fair value of assets acquired and liabilities assumed on August 29, 2014	September 30,		2014			December 31,
		2014		adjustments			2014
				to fair value
	Current assets	$	88,529	$	(1,182	)	$	87,347
	Property, plant, and equipment		146,120		7,065			153,185
	Intangible assets subject to amortization		51,098		562			51,660
	Investment in joint venture		35,595		—			35,595
	Other non-current assets		2,170		3,898			6,068
	Goodwill		77,548		(3,556	)		73,992

	Total assets acquired	$	401,060	$	6,787			407,847

	Current liabilities	$	34,320	$	6,963		$	41,283
	Current maturities of long-term debt		6,547		—			6,547
	Non-current deferred tax liabilities		46,998		(486	)		46,512
	Obligations under capital lease		18,350		—			18,350
	Long-term debt, net of current portion		4,263		—			4,263
	Other non-current liabilities		2,028		310			2,338

	Total liabilities assumed	$	112,506	$	6,787		$	119,293

	Net asset acquired	$	288,554	$	—		$	288,554

Summary of Unaudited Proforma Information	The provision for income taxes has also been adjusted for all periods, based upon the foregoing adjustments to historical results.


		Year ended December 31,
		2014		2013
	Pro forma sales	$	659,652	$	606,690
	Pro forma net income	$	19,573	$	3,307
Other Acquisitions [Member]
Summary of Estimated Fair Values of Assets Acquired and Liabilities Assumed	The following table summarizes the fair values of assets acquired and liabilities assumed at the date of acquisition with any adjustments to fair value since September 30, 2014.


	Assets acquired and liabilities assumed	September		2014			December
		30, 2014		adjustments			31, 2014
				to fair value
	Current assets	$	5,688	$	(123	)	$	5,565
	Property, plant, and equipment		15,367		(31	)		15,336
	Intangible assets subject to amortization		2,705		—			2,705
	Goodwill		2,038		456			2,494

	Total assets acquired	$	25,798	$	302		$	26,100
	Current liabilities	$	4,803	$	302		$	5,105

	Total liabilities assumed	$	4,803	$	302		$	5,105

	Net asset acquired	$	20,995	$	—		$	20,995

Accounts_Receivable_and_Sales_1

Accounts Receivable and Sales Concentrations (Tables)	12 Months Ended
Accounts Receivable and Sales Concentrations (Tables)	Dec. 31, 2014
Receivables [Abstract]
Summary of Accounts Receivables
		December 31,
		2014		2013
	Trade	$	98,030	$	59,374
	Less - allowance for doubtful accounts		520		445

	Accounts receivable, net	$	97,510	$	58,929

Summary of Activity in the Allowance for Doubtful Accounts	Activity in the allowance for doubtful accounts is as follows:


	Description	Balance at		Additions		Write-			Currency			Balance at
		Beginning				offs			Impacts			End of Year
		of Year

	December 31, 2014
	Allowance for doubtful accounts	$	445	$	208	$	(123	)	$	(10	)	$	520


	December 31, 2013
	Allowance for doubtful accounts	$	311	$	177	$	(47	)	$	4		$	445


	December 31, 2012
	Allowance for doubtful accounts	$	438	$	98	$	(224	)	$	(1	)	$	311

Inventories_Tables

Inventories (Tables)	12 Months Ended
Inventories (Tables)	Dec. 31, 2014
Inventory Disclosure [Abstract]
Summary of Inventories
		December 31,
		2014		2013
	Raw materials	$	35,191	$	15,448
	Work in process		21,883		9,672
	Finished goods		34,395		29,410

	Inventories	$	91,469	$	54,530

Property_Plant_and_Equipment_T

Property, Plant and Equipment (Tables)	12 Months Ended
Property, Plant and Equipment (Tables)	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Summary of Property, Plant and Equipment
			December 31,
		Estimated	2014		2013
		Useful Life	2014		2013
	Land owned		$	7,548	$	6,139
	Land under capital lease			2,097		1,437
	Buildings and improvements owned	15-40 years		52,641		45,964
	Buildings under capital lease	20 years		6,225		3,172
	Machinery and equipment	3-12 years		408,299		261,842
	Construction in process			21,027		20,745


				497,837		339,299
	Less - accumulated depreciation			219,395		218,210


	Property, plant and equipment, net		$	278,442	$	121,089

Debt_Tables

Debt (Tables)	12 Months Ended
Debt (Tables)	Dec. 31, 2014
Summary of Long-Term Debt and Short-Term Debt	Long-term debt and short-term debt at December 31, 2014 and December 31, 2013 consisted of the following:


		December 31,			December 31,
		2014			2013
	Borrowings under our $350,000 Term Loan B bearing interest the greater of 1% or 3 month LIBOR (0.2318% at September 30, 2014) plus an applicable margin of 5.00% at September 30, 2014, expiring August 29, 2021, net of discount of $4,995.	$	340,005		$	—
	Borrowings under our $100,000 ABL Revolver bearing interest at a floating rate equal to LIBOR (0.1565% at September 30, 2014) plus an applicable margin of 1.75% at September 30, 2014, expiring August 29, 2019.		—			—
	Borrowings under our $100,000 revolving credit facility bearing interest at a floating rate equal to LIBOR (0.1565% at September 30, 2014) plus an applicable margin of 1.25% at September 30, 2014, expiring October 26, 2017.		—			10,763
	Borrowings under our $40,000 aggregate principal amount of fixed rate notes bore interest at a fixed rate of 4.89% and matured on April 26, 2014. Annual principal payments of $5,714 began on April 26, 2008 and extend through the date of maturity.		—			5,714
	Borrowings under our $20,000 aggregate principal amount of fixed rate notes bearing interest at a fixed rate of 4.64% maturing on December 20, 2018. Annual principal payments of $4,000 will begin on December 22, 2014 and extend through the date of maturity.		—			20,000
	French Safeguard Obligations (Autocam)		2,560			—
	Brazilian lines of credit and equipment notes (Autocam)		5,304			—
	Chinese line of credit (Autocam)		2,317			—

	Total debt		350,186			36,477
	Less current maturities of long-term debt		22,160			10,477

	Long-term debt, excluding current maturities of long-term debt	$	328,026		$	26,000

Aggregate Maturities of Long-Term Debt Including Current Portion	The aggregate maturities of long-term debt including current portion for each of the five years subsequent to December 31, 2014 are as follows:


	Year ending December 31,
	2015	$	22,160
	2016		18,150
	2017		17,020
	2018		16,186
	2019		14,711
	Thereafter		261,959

	Total	$	350,186

Minimum Future Lease Payments Under Both Capital Leases and Assumed Capital Leases Together with Present Value of Net Minimum Lease Payments	Below are the minimum future lease payments under both capital leases together with the present value of the net minimum lease payments as of December 31, 2014:


	Year ending December 31,
	2015	$	481
	2016		481
	2017		481
	2018		481
	2019		481
	Thereafter		3,913

	Total minimum lease payments		6,318
	Less interest included in payments above		(2,575	)

	Present value of minimum lease payments	$	3,743

Autocam [Member]
Minimum Future Lease Payments Under Both Capital Leases and Assumed Capital Leases Together with Present Value of Net Minimum Lease Payments	Below are the minimum future lease payments under the assumed capital leases together with the present value of the net minimum lease payments as of December 31, 2014:


	Year ending December 31,
	2015	$	5,743
	2016		4,593
	2017		3,587
	2018		2,572
	2019		816
	Thereafter		—

	Total minimum lease payments		17,311
	Less interest included in payments above		(1,097	)

	Present value of minimum lease payments	$	16,214

Employee_Benefit_Plans_Tables

Employee Benefit Plans (Tables)	12 Months Ended
Employee Benefit Plans (Tables)	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Schedule of Changes to Post-Employment Benefits	The amounts shown in the table below represent the actual liabilities at December 31, 2014 and 2013 reported under accrued post-employment benefits in the Consolidated Balance Sheets for both plans combined.


		2014			2013
	Beginning balance	$	6,920		$	6,930
	Amounts accrued		1,111			1,019
	Payments to employees/government managed plan		(1,186	)		(1,331	)
	Foreign currency impacts		(821	)		302

	Ending balance	$	6,024		$	6,920

Summary of Projected Benefit Obligation Information for Pension Plan	Set forth below is projected benefit obligation information for the Pension Plan and the plan activity since we acquired Autocam on August 29, 2014:


		2014

	Accumulated benefit obligation at measurement date	$	1,011
	Effect of salary increases		526

	Projected benefit obligation at measurement date	$	1,537


	Projected benefit obligation at date of acquisition	$	1,549
	Service and interest costs		35
	Actuarial gains (losses)		94
	Benefits paid
	Effect of foreign currency translation gains and other		(141	)

	Projected benefit obligation at measurement date	$	1,537

Summary of Net Periodic Benefit Cost Information for Pension Plan	Set forth below is net periodic benefit cost information for the Pension Plan for the four month period since the acquisition of Autocam:


		2014

	Service and interest costs	$	35
	Expected return on plan assets		(4	)
	Amortization of prior service costs		6

	Net periodic benefit cost	$	37

Summary of Net Plan Asset Information for Pension Plan	Set forth below is plan asset information for the Pension Plan:


		2014

	Plan assets at fair value at measurement date	$	589
	Projected benefit obligations at measurement date		(1,537	)

	Funded status	($	948	)


	Plan assets at fair value at date of acquisition	$	655
	Actual return on plan assets		3
	Benefits paid		(12	)
	Effect of foreign currency translation gains		(57	)

	Plan assets at fair value at measurement date	$	589

Stock_Based_Compensation_Table

Stock Based Compensation (Tables)	12 Months Ended
Stock Based Compensation (Tables)	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Weighted Average Assumptions Relevant to Determining the Fair Value at the Dates of Grant	The weighted average assumptions relevant to determining the fair value at the dates of grant are below:


			2014			2013			2012
	Term			6 years			6 years			6 years
	Risk free interest rate			1.75	%		0.87	%		1.16	%
	Dividend yield			1.43	%		0	%		0	%
	Expected volatility			56.75	%		57	%		50.51	%
	Expected forfeiture rate			3	%		3	%		3	%
Reconciliation of Option Activity	The following table provides a reconciliation of option activity for the year ended December 31, 2014:


	Options		Shares			Weighted-			Weighted-			Aggregate
			(000’s)			Average			Average			Intrinsic
						Exercise			Remaining			Value
						Price			Contractual			$0
									Term
	Outstanding at January 1, 2014			1,233		$	10.65
	Granted			108		$	19.93
	Exercised			(158	)	$	10.9
	Forfeited or expired			(8	)	$	12.62

	Outstanding at December 31, 2014			1,175		$	11.4			6.1		$	10,752	(1)

	Exercisable at December 31, 2014			815		$	11			5.2		$	7,786	(1)


	(1)	The intrinsic value is the amount by which the market price of our stock was greater than the exercise price of any individual option grant at December 31, 2014.

Goodwill_Net_Tables

Goodwill, Net (Tables)	12 Months Ended
Goodwill, Net (Tables)	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in Carrying Amount of Goodwill	The changes in the carrying amount of goodwill for the years ended December 31, 2014, 2013 and 2012 are as follows:


	(In thousands)	Metal Bearing			Autocam Precision		Total
		Components Segment			Components
					Segment
	Balance as of January 1, 2013	$	8,254			—	$	8,254
	Currency impacts		370			—	$	370

	Balance as of December 31, 2013	$	8,624			—	$	8,624
	Currency impacts		(1,169	)		—		(1,169	)
	Goodwill acquired in acquisition		2,494			73,992		76,486

	Balance as of December 31, 2014	$	9,949		$	73,992	$	83,941

Segment_Information_Tables

Segment Information (Tables)	12 Months Ended
Segment Information (Tables)	Dec. 31, 2014
Segment Reporting [Abstract]
Segment Information		Metal Bearing			Autocam				Plastic and			Corporate and				Total
		Components			Precision				Rubber			Consolidations
		Segment			Components				Components
					Segment				Segment

	December 31, 2014
	Net sales		$	278,026		$	177,224			$	33,351		$	—			$	488,601
	Depreciation and amortization			12,000			9,070				1,160			(84	)			22,146
	Income from operations			31,872			15,732				1,231			(21,148	)			27,687
	Interest expense													12,293				12,293
	Income tax (benefit) expense													5,786				5,786
	Net income (loss)													8,217				8,217
	Assets			214,291			444,548				17,196			36,678				712,713
	Expenditures for long-lived assets			10,941			10,947				673			5,041				27,602

	December 31, 2013
	Net sales		$	259,459		$	78,756			$	34,991		$	—			$	373,206
	Depreciation and amortization			11,334			4,313				1,347			(37	)			16,957
	Income from operations			27,380			9,112				592			(9,257	)			27,827
	Interest Expense													2,374				2,374
	Income tax (benefit) expense													8,000				8,000
	Net income (loss)													17,178				17,178
	Assets			197,980			39,432				16,638			8,352				262,402
	Expenditures for long-lived assets			9,250			4,640				1,015			345				15,250

	December 31, 2012
	Net sales		$	252,241		$	76,746			$	41,097		$	—			$	370,084
	Depreciation and amortization			12,060			4,243				1,366			(26	)			17,643
	Income from operations			24,900			6,955				1,807			(8,591	)			25,071
	Interest Expense													3,878				3,878
	Income tax (benefit) expense													(3,927	)			(3,927	)
	Net income (loss)													24,268				24,268
	Assets			198,770			40,727				19,232			6,614				265,343
	Expenditures for long-lived assets			14,875			1,511				703			—				17,089
Revenue from External Customers and Long-lived Assets	December 31, 2014							December 31, 2013							December 31, 2012
			Net Sales			Property,				Net Sales			Property,				Net Sales			Property,
						Plant and							Plant and							Plant and
						Equipment,							Equipment,							Equipment,
						Net							Net							Net

	United States		$	204,360		$	129,232			$	140,875		$	42,573			$	144,375		$	42,884

	Europe			167,665			82,783				149,649			57,505				140,208			54,768
	Asia			58,470			32,848				38,233			21,011				39,576			22,035
	Canada			8,657			—				9,415			—				7,464			—
	Mexico			25,900			2,637				21,963			—				24,030			—
	S. America			23,549			30,942				13,071			—				14,431			—

	All foreign countries			284,241			149,210				232,331			78,516				225,709			76,803

	Total		$	488,601		$	278,442			$	373,206		$	121,089			$	370,084		$	119,687

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
Income Taxes (Tables)	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income (Loss) Before Provision (Benefit) for Income Taxes	Income (loss) before provision (benefit) for income taxes for the years ended December 31, 2014, 2013 and 2012 was as follows:


		Year ended December 31,
		2014			2013			2012

	Income (loss) before provision (benefit) for income taxes:
	United States	$	(9,341	)	$	8,259		$	7,385
	Foreign		22,513			16,919			12,956

	Total	$	13,172		$	25,178		$	20,341

Income Tax Expense (Benefit)	Total income tax expense (benefit) for the years ended December 31, 2014, 2013, and 2012 was as follows:


		Year ended December 31,
		2014			2013			2012
	Current:
	U.S. Federal	$	—		$	—		$	(115	)
	State		37			179			345
	Foreign		7,082			4,490			2,910

	Total current expense	$	7,119			4,669			3,140


	Deferred:
	U.S. Federal	$	1,625		$	3,594		$	2,789
	State		(382	)		145			12
	U.S. deferred tax valuation allowance		(1,434	)		(818	)		(9,814	)
	Foreign		(1,142	)		410			(54	)

	Total deferred expense (benefit)		(1,333	)		3,331			(7,067	)


	Total expense (benefit)	$	5,786		$	8,000		$	(3,927	)

Reconciliation of Income Taxes Based on U.S. Federal Statutory Rate	A reconciliation of income taxes based on the U.S. federal statutory rate of 34% for each of the years ended December 31, 2014, 2013 and 2012 is summarized as follows:


		Year ended December 31,
		2014			2013			2012

	Income taxes at the federal statutory rate	$	4,478		$	8,561		$	6,916
	Impact of incentive stock options		(145	)		261			371
	Decrease in U.S. valuation allowance		(1,434	)		(818	)		(12,740	)
	Foreign tax credit expiration		2,736			818			—
	Capital gain on return of basis		—			—			3,079
	State taxes, net of federal taxes		(362	)		198			334
	Non-U.S. earnings taxed at different rates		(1,714	)		(834	)		(1,606	)
	Non-deductible mergers and acquisition costs		1,971			—			—
	R&D Tax credit		(529	)		—			—
	Joint Venture dividend		737			—			—
	Change in uncertain tax positions		—			32			(115	)
	Other permanent differences, net		48			(218	)		(166	)

		$	5,786		$	8,000		$	(3,927	)

Tax Effects of Temporary Differences	The tax effects of the temporary differences as of December 31, 2014, 2013 and 2012 are as follows:


		December 31,
		2014			2013			2012
	Deferred income tax liabilities:
	Tax in excess of book depreciation	$	35,411		$	6,673		$	6,670
	Goodwill		1,949			2,213			1,987
	Intangible assets		15,944			—			—
	Other deferred tax liabilities		1,924			63			112

	Gross deferred income tax liabilities		55,228			8,949			8,769

	Deferred income tax assets:
	Goodwill		2,411			3,215			4,141
	Inventories		2,035			836			768
	Pension/Personnel accruals		3,029			856			921
	Net operating loss carry forwards		1,196			1,351			3,682
	Foreign tax credits		290			3,026			3,844
	Guarantee claim deduction		1,141			1,141			1,141
	Credit carry forwards		1,853			—			—
	Accruals and reserves		—			114			293
	Other deferred tax assets		1,926			832			550

	Gross deferred income tax assets		13,881			11,371			15,340
	Valuation allowance on deferred tax assets		—			(1,434	)		(2,252	)


	Net deferred income tax assets		13,881			9,937			13,088


	Net deferred income tax assets (liabilities)	$	(41,347	)	$	988		$	4,319

Summary of Activity in Total Valuation Allowances	Below is a summary of the activity in the total valuation allowances during the years ended December 31, 2014, 2013 and 2012:


		Balance at			Additions			Recoveries			Balance at End
		Beginning of									of Year
		Year

	2014	$	1,434		$	—		$	(1,434	)	$	—
	2013	$	2,252		$	—		$	(818	)	$	1,434
	2012	$	12,066		$	—		$	(9,814	)	$	2,252
Summary of Reconciliation of Beginning and Ending Amounts of Unrecognized Tax Benefits, Excluding Interest and Penalties	A reconciliation of the beginning and ending amounts of unrecognized tax benefits, excluding interest and penalties for the years ended December 31, 2014, 2013 and 2012 is as follows:


		2014			2013			2012

	Beginning balance	$	873		$	873		$	988
	Additions for tax positions of prior years		3,589			—			428
	Reductions for tax positions of prior years		(628	)		—			(543	)

	Ending balance	$	3,834		$	873		$	873

Reconciliation_of_Net_Income_P1

Reconciliation of Net Income Per Share (Tables)	12 Months Ended
Reconciliation of Net Income Per Share (Tables)	Dec. 31, 2014
Earnings Per Share [Abstract]
Summary of Reconciliation of Net Income (Loss) Per Share	Year ended December 31,
		2014		2013		2012

	Net income	$	8,217	$	17,178	$	24,268

	Weighted average shares outstanding		17,887		17,176		17,009
	Effective of dilutive stock options		366		84		105


	Diluted shares outstanding		18,253		17,260		17,114


	Basic net income per share	$	0.46	$	1	$	1.43


	Diluted net income per share	$	0.45	$	1	$	1.42

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
Commitments and Contingencies (Tables)	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Schedule by Year of Future Minimum Lease Payments	The following is a schedule by year of future minimum lease payments as of December 31, 2014 under operating leases that have initial or remaining non-cancelable lease terms in excess of one year.


	Year ending December 31,

	2015	$	5,434
	2016		5,112
	2017		3,430
	2018		2,214
	2019		1,831
	Thereafter		5,454


	Total minimum lease payments	$	23,475

Investment_in_NonConsolidated_1

Investment in Non-Consolidated Joint Venture (Tables)	12 Months Ended
Investment in Non-Consolidated Joint Venture (Tables)	Dec. 31, 2014
Equity Method Investments and Joint Ventures [Abstract]
Components of Joint Venture Investment	Below are the components of our JV investment balance at December 31, 2014 since the date of acquisition August 29, 2014:


	Beginning Balance	$	35,595
	Dividends received		(2,538	)
	Our share of cumulative earnings		1,646

	Ending Balance	$	34,703

Summarized Balance Sheet Information for Joint Venture	Set forth below is summarized balance sheet information for the JV:


		December 31,
		2014
	Current assets	$	24,140
	Non-current assets		21,519

	Total assets	$	45,659


	Current liabilities	$	14,162

	Total liabilities	$	14,162

Quarterly_Results_of_Operation1

Quarterly Results of Operations (Unaudited) (Tables)	12 Months Ended
Quarterly Results of Operations (Unaudited) (Tables)	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Summary of Unaudited Quarterly Results of Operations	The following summarizes the unaudited quarterly results of operations for the years ended December 31, 2014 and 2013.


		Year ended December 31, 2014
		March 31		June 30		Sept. 30			Dec. 31
	Net sales	$	102,528	$	106,680	$	125,632		$	153,761
	Income from operations		8,338		8,237		2,552			8,560
	Net income		5,238		5,200		(3,840	)		1,619
	Basic net income per share		0.3		0.29		(0.21	)		0.09
	Diluted net income per share		0.29		0.29		(0.21	)		0.08

	Weighted average shares outstanding:
	Basic number of shares		17,656		17,779		17,979			18,970
	Effect of dilutive stock options		306		393		—			347


	Diluted number of shares		17,962		18,172		17,979			19,317



		Year ended December 31, 2013
		March 31		June 30		Sept. 30			Dec. 31

	Net sales	$	93,797	$	96,305	$	93,023		$	90,081
	Income from operations		5,639		7,920		7,794			6,474
	Net income		2,871		4,770		5,052			4,485
	Basic net income per share		0.17		0.28		0.29			0.25
	Diluted net income per share		0.17		0.28		0.29			0.25

	Weighted average shares outstanding:
	Basic number of shares		17,055		17,136		17,302			17,527
	Effect of dilutive stock options		107		36		148			290


	Diluted number of shares		17,162		17,172		17,450			17,817

Interest_Rate_Hedging_Tables

Interest Rate Hedging (Tables)	12 Months Ended
Interest Rate Hedging (Tables)	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Effect of Financial Assets and Liabilities Valued on Recurring Basis	The table below summarizing the fair value measurement of this swap as of December 31, 2014 valued on a recurring basis on a gross basis:


	(Dollars in thousands)				Fair Value Measurements at December 31, 2014
	Description	December 31,			Quoted Prices in		Significant Other				Significant
		2014			Active Markets		Observable				Unobservable
					for Identical		Inputs (Level 2)				Inputs (Level 3)
					Assets (Level 1)
	Derivative Assets	$	867		$	—	$	867			$	—
	Derivative Liabilities		(1,298	)		—		(1,298	)			(—	)

		$	(431	)	$	—	$	(431	)		$	—

Effect of Derivatives' Hedging Relationships	Derivatives’ Hedging Relationships


	(Dollars in millions)	Amount of after tax of gain/					Location of gain/(loss)		Pre-tax amount of gain/(loss)
		(loss) recognized in Other					reclassified from		reclassified from Accumulated
		Comprehensive Income on					Accumulated Other		Other Comprehensive Income
		Derivatives (effective portion)					Comprehensive		into Income (effective portion)
							Income into Income
	Derivatives’ Cash Flow Hedging Relationships	December 31,			December 31,		(effective portion)		December 31,				December 31,
	Derivatives’ Cash Flow Hedging Relationships	2014			2013				2014				2013

	Forward starting interest rate swap contracts	$	(431	)	$	—	Interest Expense		$	—			$	—

		$	(431	)	$	—			$	—			$	—

Summary_of_Significant_Account2

Summary of Significant Accounting Policies and Practices - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Aug. 29, 2014
Significant Accounting Policies [Line Items]
Maturity period of highly liquid investments	Three months or less
Percentage of subsidiaries owned	100.00%	100.00%	100.00%
Joint Venture [Member]
Significant Accounting Policies [Line Items]
Percentage of subsidiaries owned	49.00%			49.00%
RFK [Member]
Significant Accounting Policies [Line Items]
Percentage of subsidiaries owned	99.70%

Acquisitions_Additional_Inform

Acquisitions - Additional Information (Detail) (USD $)	3 Months Ended								12 Months Ended			0 Months Ended	1 Months Ended	0 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Aug. 29, 2014	Sep. 30, 2014	Jul. 15, 2014	Jun. 20, 2014	Jan. 30, 2014
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Business	Dec. 31, 2013	Dec. 31, 2012	Aug. 29, 2014	Sep. 30, 2014	Jul. 15, 2014	Jun. 20, 2014	Jan. 30, 2014
Business Acquisition [Line Items]
Business acquisition, transaction costs									$9,433
Business combinations net income during period from acquired business	1,619	-3,840	5,200	5,238	4,485	5,052	4,770	2,871	8,217	17,178	24,268
Payments to Acquire Businesses	20,995								20,995
Business acquisition, transaction costs	1,242								1,242
Goodwill from acquisition									76,486
Non-controlling interest									-32
Operating assets acquired in cash									257,664
Number of businesses acquired									4
Payment for acquisition of non-controlling interest									2,528
Metal Bearing Components Segment [Member]
Business Acquisition [Line Items]
Goodwill from acquisition									2,494
Autocam Precision Components Segment [Member]
Business Acquisition [Line Items]
Goodwill from acquisition									73,992
Autocam [Member]
Business Acquisition [Line Items]
Date of acquisition									29-Aug-14
Payments to acquire												256,837
Debt and capital lease obligations												29,848
Business acquisition, consideration transferred in NN stock												31,717
Term loan facility	350,000								350,000
Business acquisition, transaction costs									3,846
Increase in cost of sales		1,158							1,158
Business combinations revenue during period from acquired business									80,821				80,821
Business combinations net income during period from acquired business									3,686				3,686
Payments to Acquire Businesses	407,847	401,060							407,847				401,060
Intangible assets subject to amortization	51,660	51,098							51,660				51,098
Net assets acquired	288,554	288,554							288,554				288,554
Autocam [Member] \| Twelve Month [Member]
Business Acquisition [Line Items]
Business acquisition, transaction costs									6,912
Business acquisition, deferred financing costs write off									2,974
Increase in cost of sales									1,158
RFK and Chelsea [Member] \| Metal Bearing Components Segment [Member]
Business Acquisition [Line Items]
Goodwill from acquisition									2,494
RFK and Chelsea [Member] \| Customer Contracts and Trade Names [Member]
Business Acquisition [Line Items]
Intangible assets subject to amortization	2,705								2,705
Finite-lived intangible assets, weighted-average useful life									11 years
Chelsea Grinding [Member]
Business Acquisition [Line Items]
Date of acquisition									15-Jul-14
Payments to acquire														3,100
Revenue during period from acquired business														1,100
RFK [Member]
Business Acquisition [Line Items]
Date of acquisition									20-Jun-14
Payments to acquire		2,527													9,756
Business combinations revenue during period from acquired business									5,100
Business combinations net income during period from acquired business									165
Percentage of shares acquired		99.70%											99.70%		79.20%
Non-controlling interest									32
Percentage of shares owned by non controlling owners	0.30%								0.30%
VS [Member]
Business Acquisition [Line Items]
Date of acquisition									30-Jan-14
Business combinations revenue during period from acquired business									14,742
Business combinations net income during period from acquired business									-1,011
Operating assets acquired in cash									260,192							5,580
Liabilities assumed																2,968
Integration costs net of tax									503
Number of businesses acquired									4
Net assets acquired	277,832								277,832
Net cash received in the acquisition									17,640
Payment for acquisition of non-controlling interest									2,528
VS [Member] \| Autocam Precision Components Segment [Member]
Business Acquisition [Line Items]
Net assets acquired	256,837								256,837
VS [Member] \| Other Segments [Member]
Business Acquisition [Line Items]
Net assets acquired	$20,995								$20,995

Acquisitions_Summary_of_Estima

Acquisitions - Summary of Estimated Fair Values of Assets Acquired and Liabilities Assumed (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2014
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2014
Business Acquisition [Line Items]
Property, plant, and equipment	$168,521
Investment in joint venture	34,703
Goodwill	83,941	8,624	8,254
Total assets acquired	20,995
Autocam [Member]
Business Acquisition [Line Items]
Current assets	87,347			88,529
Property, plant, and equipment	153,185			146,120
Intangible assets subject to amortization	51,660			51,098
Investment in joint venture	35,595			35,595
Other non-current assets	6,068			2,170
Goodwill	73,992			77,548
Total assets acquired	407,847			401,060
Current liabilities	41,283			34,320
Current maturities of long-term debt	6,547			6,547
Non-current deferred tax liabilities	46,512			46,998
Obligations under capital lease	18,350			18,350
Long-term debt, net of current portion	4,263			4,263
Other non-current liabilities	2,338			2,028
Total liabilities assumed	119,293			112,506
Net asset acquired	288,554			288,554
Autocam [Member] \| Adjustments to Fair Value [Member]
Business Acquisition [Line Items]
Current assets	-1,182
Property, plant, and equipment	7,065
Intangible assets subject to amortization	562
Other non-current assets	3,898
Goodwill	-3,556
Total assets acquired	6,787
Current liabilities	6,963
Non-current deferred tax liabilities	-486
Other non-current liabilities	310
Total liabilities assumed	6,787
Other Acquisitions [Member]
Business Acquisition [Line Items]
Current assets	5,565			5,688
Property, plant, and equipment	15,336			15,367
Intangible assets subject to amortization	2,705			2,705
Goodwill	2,494			2,038
Total assets acquired	26,100			25,798
Current liabilities	5,105			4,803
Total liabilities assumed	5,105			4,803
Net asset acquired	20,995			20,995
Other Acquisitions [Member] \| Adjustments to Fair Value [Member]
Business Acquisition [Line Items]
Current assets	-123
Property, plant, and equipment	-31
Goodwill	456
Total assets acquired	302
Current liabilities	302
Total liabilities assumed	$302

Acquisitions_Summary_of_Unaudi

Acquisitions - Summary of Unaudited Proforma Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Business Combination Increase Decrease To Reflect Liabilities Acquired At Fair Value [Abstract]
Pro forma sales	$659,652	$606,690
Pro forma net income	$19,573	$3,307

Impairment_Charges_Additional_

Impairment Charges - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2012
Restructuring Cost and Reserve [Line Items]
Non-cash impairment charges	$875	$967
Kilkenny Plant [Member]
Restructuring Cost and Reserve [Line Items]
Non-cash impairment charges		$967

Accounts_Receivable_and_Sales_2

Accounts Receivable and Sales Concentrations - Summary of Accounts Receivables (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Receivables [Abstract]
Trade	$98,030	$59,374
Less - allowance for doubtful accounts	520	445	311	438
Accounts receivable, net	$97,510	$58,929

Accounts_Receivable_and_Sales_3

Accounts Receivable and Sales Concentrations - Summary of Activity in the Allowance for Doubtful Accounts (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Receivables [Abstract]
Balance at Beginning of Year	$445	$311	$438
Additions	208	177	98
Write- offs	-123	-47	-224
Currency Impacts	-10	4	-1
Balance at End of Year	$520	$445	$311

Accounts_Receivable_and_Sales_4

Accounts Receivable and Sales Concentrations - Additional Information (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net sales	$153,761	$125,632	$106,680	$102,528	$90,081	$93,023	$96,305	$93,797	$488,601	$373,206	$370,084
Accounts receivable, net	97,510				58,929				97,510	58,929
SKF [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net sales									127,946	132,654	124,349
Accounts receivable concentrations in excess									10.00%	10.00%
Accounts receivable, net	17,510				17,005				17,510	17,005
SNR [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable concentrations in excess									10.00%	10.00%
Accounts receivable, net					$6,893					$6,893
Customer Concentration Risk [Member] \| Sales [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of consolidated revenue									10.00%	10.00%	10.00%
Customer Concentration Risk [Member] \| Sales [Member] \| SKF [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of consolidated revenue									26.00%	36.00%	34.00%

Inventories_Summary_of_Invento

Inventories - Summary of Inventories (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Inventory Disclosure [Abstract]
Raw materials	$35,191	$15,448
Work in process	21,883	9,672
Finished goods	34,395	29,410
Inventories	$91,469	$54,530

Inventories_Additional_Informa

Inventories - Additional Information (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Inventory Disclosure [Abstract]
Inventory on consignment at customers' sites	$5,857	$4,735

Property_Plant_and_Equipment_S

Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	497,837	$339,299
Less - accumulated depreciation	219,395	218,210
Property, plant and equipment, net	278,442	121,089	119,687
Land Owned [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	7,548	6,139
Land under Capital Lease [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	2,097	1,437
Buildings and Improvements Owned [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	52,641	45,964
Buildings and Improvements Owned [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life	15 years
Buildings and Improvements Owned [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life	40 years
Buildings under Capital Lease [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life	20 years
Property, plant and equipment, Gross	6,225	3,172
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	408,299	261,842
Machinery and Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life	3 years
Machinery and Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life	12 years
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	21,027	$20,745

Property_Plant_and_Equipment_A

Property, Plant and Equipment - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
	Business	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Abstract]
Property, plant and equipment acquired	$168,521
Number of businesses acquired	4
Depreciation expense	$20,817	$16,957	$17,643

Debt_Summary_of_LongTerm_Debt_

Debt - Summary of Long-Term Debt and Short-Term Debt (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Aug. 29, 2014
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Aug. 29, 2014
Debt Instrument [Line Items]
Total debt	$350,186	$36,477
Total debt	350,186	36,477
Less current maturities of long-term debt	22,160	10,477
Long-term debt, excluding current maturities of long-term debt	328,026	26,000
French Safeguard [Member]
Debt Instrument [Line Items]
French Safeguard Obligations (Autocam)	2,560
Total debt	2,560
Total debt	2,560
Less current maturities of long-term debt	330
Long-term debt, excluding current maturities of long-term debt	2,230
Brazilian [Member]
Debt Instrument [Line Items]
Borrowings under line of credit	5,304
Chinese [Member]
Debt Instrument [Line Items]
Borrowings under line of credit	2,317
4.89% Fixed Rate Notes [Member]
Debt Instrument [Line Items]
Borrowings fixed rate notes		5,714
4.64% Fixed Rate Notes [Member]
Debt Instrument [Line Items]
Borrowings fixed rate notes		20,000
Term Loan B [Member]
Debt Instrument [Line Items]
Borrowings under our $350,000 Term Loan B bearing interest the greater of 1% or 3 month LIBOR (0.2318% at September 30, 2014) plus an applicable margin of 5.00% at September 30, 2014, expiring August 29, 2021, net of discount of $4,995.	340,005		350,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Borrowings under line of credit		$10,763

Debt_Summary_of_LongTerm_Debt_1

Debt - Summary of Long-Term Debt and Short-Term Debt (Parenthetical) (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Aug. 29, 2014
Debt Instrument [Line Items]
LIBOR rate	0.00%
4.89% Fixed Rate Notes [Member]
Debt Instrument [Line Items]
Borrowings	$40,000
Percentage of fixed interest rate bearing	4.89%
Annual principal payment of fixed rate notes	5,714
Debt maturity date	26-Apr-14
4.64% Fixed Rate Notes [Member]
Debt Instrument [Line Items]
Borrowings	20,000	20,000
Percentage of fixed interest rate bearing	4.64%
Annual principal payment of fixed rate notes	4,000
Debt maturity date	20-Dec-18
Term Loan B [Member]
Debt Instrument [Line Items]
Borrowings	350,000
LIBOR rate	0.23%
Applicable margin added to the interest rate post amendment	5.00%
Interest bearing rate	1.00%
LIBOR Period	3 months
Debt maturity date	29-Aug-21
Debt discount	4,995
ABL Revolver [Member]
Debt Instrument [Line Items]
Borrowings	100,000	100,000
LIBOR rate	0.16%
Applicable margin	1.75%
Debt maturity date	29-Aug-19
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Borrowings	$100,000
Line of credit LIBOR rate	0.16%
Applicable margin	1.25%
Debt maturity date	26-Oct-17

Debt_Additional_Information_De

Debt - Additional Information (Detail) (USD $)	0 Months Ended			12 Months Ended
In Thousands, unless otherwise specified	Aug. 29, 2014	Oct. 01, 2011	Jun. 01, 2004	Dec. 31, 2014	Dec. 31, 2013	Oct. 01, 2011
	Facilities	Oct. 01, 2011	sqft	Dec. 31, 2014	Dec. 31, 2013	sqft
Credit Facilities [Line Items]
Number of credit facilities	2
Net capitalized loan origination costs				$1,398
Proceeds from long-term debt	344,750			344,750
Debt discount (premium)	5,250
Interest rate				0.00%
Total debt				350,186	36,477
Current Maturities of Long-Term debt				-22,160	-10,477
Long-term debt excluding current maturities of long-term debt				-328,026	-26,000
Period of lease agreement		20 years	20 years
Lease of land and building		75,000	110,000			75,000
Undiscounted annual lease payments		193	299
Aggregate non discounted lease payments over the twenty year term		3,850	5,988
Capital leased assets reflected in property, plant and equipment, net				24,997
accumulated depreciation of capital leased assets				618
Land Owned [Member]
Credit Facilities [Line Items]
Fair value		892	545			892
Building [Member]
Credit Facilities [Line Items]
Fair value		1,156	2,016			1,156
4.64% Fixed Rate Notes [Member]
Credit Facilities [Line Items]
Borrowings	20,000			20,000
Net capitalized loan origination costs	30
French Safeguard [Member]
Credit Facilities [Line Items]
Total debt				2,560
Current Maturities of Long-Term debt				-330
Long-term debt excluding current maturities of long-term debt				-2,230
Chinese [Member]
Credit Facilities [Line Items]
Interest rate				4.95%
Term Loan B [Member]
Credit Facilities [Line Items]
Borrowings	350,000			340,005
Borrowings				350,000
Maturity period				7 years
Repayment of term loan, percentage				5.00%
Potential to expand credit facility under credit agreement				50,000
Unamortized balance				7,945
Interest rate				0.23%
ABL Revolver [Member]
Credit Facilities [Line Items]
Borrowings	100,000			100,000
Maturity period				5 years
Potential to expand credit facility under credit agreement				50,000
Unamortized balance				968
ABL borrowing				8,000
Interest rate				0.16%
Revolving Credit Facility [Member]
Credit Facilities [Line Items]
Borrowings				100,000
Net capitalized loan origination costs	$1,368
Minimum [Member] \| French Safeguard [Member]
Credit Facilities [Line Items]
Creditor's claim period				10 years
Minimum [Member] \| Brazilian [Member]
Credit Facilities [Line Items]
Lines of credit interest rate				10.50%
Maximum [Member] \| Brazilian [Member]
Credit Facilities [Line Items]
Lines of credit interest rate				21.80%

Debt_Aggregate_Maturities_of_L

Debt - Aggregate Maturities of Long-Term Debt including Current Portion (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Debt Disclosure [Abstract]
2015	$22,160
2016	18,150
2017	17,020
2018	16,186
2019	14,711
Thereafter	261,959
Total debt	$350,186	$36,477

Debt_Minimum_Future_Lease_Paym

Debt - Minimum Future Lease Payments Under Both Capital Leases and Assumed Capital Leases Together with Present Value of Net Minimum Lease Payments (Detail) (USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified	Dec. 31, 2014
Debt Instrument [Line Items]
2015	$481
2016	481
2017	481
2018	481
2019	481
Thereafter	3,913
Total minimum lease payments	6,318
Less interest included in payments above	-2,575
Present value of minimum lease payments	3,743
Autocam [Member]
Debt Instrument [Line Items]
2015	5,743
2016	4,593
2017	3,587
2018	2,572
2019	816
Total minimum lease payments	17,311
Less interest included in payments above	-1,097
Present value of minimum lease payments	$16,214

Employee_Benefit_Plans_Additio

Employee Benefit Plans - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Aug. 29, 2014
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Minimum age for IRS catch up provision limit	50 years
Vesting percentage	100.00%
Matching contribution, Amount	$764	$349	$335
Severance indemnities paid to the pension fund	1/13.5 of the gross salaries
Measurement date	31-Dec
Discount rates assumed for calculating the actuarial present value	1.90%
Compensation growth rate	2.90%
Expected benefit payments under pension plan for 2015	0
Expected benefit payments under pension plan for 2016	0
Expected benefit payments under pension plan for 2017	16
Expected benefit payments under pension plan for 2018	8
Expected benefit payments under pension plan from 2020-2024	379
Assumed rate of return on assets of the Pension Plan	2.00%
Targeted goal of allocating plan assets	We have a targeted goal of allocating plan assets one-third to equity and two-thirds to fixed income securities.
Expected funding obligation under pension plan	$132			$1,549
Equity Securities [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Actual allocations of pension plan assets	19.00%
Fixed Income Securities [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Actual allocations of pension plan assets	81.00%
Minimum [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Compensation to the plans	1.00%
Award for employees	25 years
Maximum [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Compensation to the plans	60.00%
Award for employees	40 years

Employee_Benefit_Plans_Schedul

Employee Benefit Plans - Schedule of Changes to Post-Employment Benefits (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]
Beginning balance	$6,920	$6,930
Amounts accrued	1,111	1,019
Payments to employees/government managed plan	-1,186	-1,331
Foreign currency impacts	-821	302
Ending balance	$6,024	$6,920

Employee_Benefit_Plans_Summary

Employee Benefit Plans - Summary of Projected Benefit Obligation Information for Pension Plan (Detail) (USD $)	4 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]
Accumulated benefit obligation at measurement date	$1,011	$1,011
Effect of salary increases	526
Projected benefit obligation at measurement date	1,537	1,537
Projected benefit obligation at date of acquisition	1,549		132
Service and interest costs	35
Actuarial gains (losses)	94	299
Benefits paid	0
Effect of foreign currency translation gains and other	-141
Projected benefit obligation at measurement date	$1,537	$1,537

Employee_Benefit_Plans_Summary1

Employee Benefit Plans - Summary of Net Periodic Benefit Cost Information for Pension Plan (Detail) (USD $)	4 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]
Service and interest costs	$35
Expected return on plan assets	-4
Amortization of prior service costs	6
Net periodic benefit cost	$37

Employee_Benefit_Plans_Summary2

Employee Benefit Plans - Summary of Net Plan Asset Information for Pension Plan (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]
Plan assets at fair value at measurement date	$589
Projected benefit obligations at measurement date	-1,537
Funded status	-948
Plan assets at fair value at date of acquisition	655
Actual return on plan assets	3
Benefits paid	-12
Effect of foreign currency translation gains	-57
Plan assets at fair value at measurement date	$589

Stock_Based_Compensation_Addit

Stock Based Compensation - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Schedule Of Stock Option Activity [Line Items]
Share-based compensation expense	$2,595	$2,239	$1,788
Compensation expense related with stock options	1,274	1,437	1,093
Compensation expense for stock awards	1,321	802	695
Maximum number of shares authorized to issued as options	1,131
Term life of options	10 years
Vesting period of stock issue	3 years	3 years	3 years
Number of options granted	108	354	285
Weighted average grant date fair value of the options granted	$9.48	$5.17	$4.27
Unrecognized compensation costs to be recognized for stock options	778
Unrecognized compensation costs to be recognized for restricted stocks	1,511
Unrecognized compensation costs, period for recognition	2 years
Cash proceeds from the exercise of options	1,671	4,013	22
Total intrinsic value of options exercised	$1,956	$1,416	$107
Common stock issued	114	90	78
Weighted average grant date fair value Per Share of the Stock Award	$20.15
Key Employees [Member]
Schedule Of Stock Option Activity [Line Items]
Vesting period of stock issue	3 years
Non-employee Directors [Member]
Schedule Of Stock Option Activity [Line Items]
Vesting period of stock issue	1 year

Stock_Based_Compensation_Weigh

Stock Based Compensation - Weighted Average Assumptions Relevant to Determining the Fair Value at the Dates of Grant (Detail)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Term	6 years	6 years	6 years
Risk free interest rate	1.75%	0.87%	1.16%
Dividend yield	1.43%	0.00%	0.00%
Expected volatility	56.75%	57.00%	50.51%
Expected forfeiture rate	3.00%	3.00%	3.00%

Stock_Based_Compensation_Recon

Stock Based Compensation - Reconciliation of Option Activity (Detail) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Number of options, Outstanding, Beginning Balance	1,233
Number of Options, Granted	108	354	285
Number of Options, Exercised	-158
Number of Options, Forfeited or expired	-8
Number of Options, Outstanding, Ending Balance	1,175	1,233
Number of Options, Options Exercisable	815
Weighted-Average Exercise Price, Outstanding, Beginning Balance	$10.65
Weighted-Average Exercise Price, Granted	$19.93
Weighted-Average Exercise Price, Exercised	$10.90
Weighted-Average Exercise Price, Forfeited or expired	$12.62
Weighted-Average Exercise Price, Outstanding, Ending Balance	$11.40	$10.65
Weighted-Average Exercise Price, Options exercisable	$11
Weighted-Average Remaining Contractual Term, Outstanding, Ending Balance	6 years 1 month 6 days
Weighted- Average Remaining Contractual Term, Options exercisable	5 years 2 months 12 days
Aggregate Intrinsic Value, Outstanding, Ending Balance	$10,752
Aggregate Intrinsic Value, Options exercisable	$7,786

Goodwill_Net_Additional_Inform

Goodwill, Net - Additional Information (Detail) (USD $)	12 Months Ended
Goodwill, Net - Additional Information (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Goodwill and Intangible Assets Disclosure [Abstract]
Impairment of goodwill	$0	$0	$0
Accumulated Impairment of goodwill	$40,045,000	$40,045,000	$40,045,000

Goodwill_Net_Changes_in_Carryi

Goodwill, Net - Changes in Carrying Amount of Goodwill (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Goodwill [Line Items]
Beginning Balance	$8,624	$8,254
Currency impacts	-1,169	370
Goodwill acquired in acquisition	76,486
Ending Balance	83,941	8,624
Metal Bearing Components Segment [Member]
Goodwill [Line Items]
Beginning Balance	8,624	8,254
Currency impacts	-1,169	370
Goodwill acquired in acquisition	2,494
Ending Balance	9,949	8,624
Autocam Precision Components Segment [Member]
Goodwill [Line Items]
Goodwill acquired in acquisition	73,992
Ending Balance	$73,992

Intangible_Assets_Net_Addition

Intangible Assets, Net - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2012	Dec. 31, 2013
	Business	Dec. 31, 2012	Dec. 31, 2013
Intangible Assets [Line Items]
Restructuring and impairment charges	$875	$967
Finite lived intangible asset not subject to amortization	52,827		900
Customer contract intangible assets related to the acquisition of RKF and Chelsea	4
Autocam Precision Components Segment [Member]
Intangible Assets [Line Items]
Amortization of intangible assets	3,617
Autocam Precision Components Segment [Member] \| Customer Contracts [Member]
Intangible Assets [Line Items]
Intangible assets subject to amortization	46,200
Finite lived intangible asset, useful life	15 years
Autocam Precision Components Segment [Member] \| Trade Names [Member]
Intangible Assets [Line Items]
Intangible assets subject to amortization	4,100
Finite lived intangible asset, useful life	15 years
Autocam Precision Components Segment [Member] \| Developed Technology [Member]
Intangible Assets [Line Items]
Intangible assets subject to amortization	940
Finite lived intangible asset, useful life	5 years
Autocam Precision Components Segment [Member] \| Leasehold Intangibles [Member]
Intangible Assets [Line Items]
Intangible assets subject to amortization	420
Autocam Precision Components Segment [Member] \| Whirlaway [Member]
Intangible Assets [Line Items]
Finite lived intangible asset not subject to amortization	900
Metal Bearing Components Segment [Member] \| Customer Contracts [Member]
Intangible Assets [Line Items]
Intangible assets subject to amortization	2,705
Finite lived intangible asset, useful life	10 years
Amortization of intangible assets	$270
Customer contract intangible assets related to the acquisition of RKF and Chelsea	2

Segment_Information_Additional

Segment Information - Additional Information (Detail) (USD $)

3 Months Ended

12 Months Ended

1 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2014

Sep. 30, 2014

Jun. 30, 2014

Mar. 31, 2014

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Sep. 30, 2014

Segment

Segment Reporting Information [Line Items]

Number of reportable segments

Non-recurring costs related to the merger with Autocam and the other three acquisitions

$9,433

Business combinations net income during period from acquired business

1,619

-3,840

5,200

5,238

4,485

5,052

4,770

2,871

8,217

17,178

24,268

Autocam [Member]

Segment Reporting Information [Line Items]

Non-recurring costs related to the merger with Autocam and the other three acquisitions

3,846

Business combinations revenue during period from acquired business

80,821

Business combinations net income during period from acquired business

3,686

Increase in cost of sales

1,158

Corporate and Consolidations [Member] | Autocam [Member]

Segment Reporting Information [Line Items]

Non-recurring costs related to the merger with Autocam and the other three acquisitions

9,837

Corporate and Consolidations [Member] | Other Acquisitions [Member]

Segment Reporting Information [Line Items]

Non-recurring costs related to the merger with Autocam and the other three acquisitions

$9,837

Segment_Information_Segment_In

Segment Information - Segment Information (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Net sales	$153,761	$125,632	$106,680	$102,528	$90,081	$93,023	$96,305	$93,797	$488,601	$373,206	$370,084
Depreciation and amortization									22,146	16,957	17,643
Income from operations	8,560	2,552	8,237	8,338	6,474	7,794	7,920	5,639	27,687	27,827	25,071
Interest expense									12,293	2,374	3,878
Income tax (benefit) expense									5,786	8,000	-3,927
Net income (loss)	1,619	-3,840	5,200	5,238	4,485	5,052	4,770	2,871	8,217	17,178	24,268
Assets	712,713				262,402				712,713	262,402	265,343
Expenditures for long-lived assets	27,602				15,250				27,602	15,250	17,089
Operating Segments [Member] \| Metal Bearing Components Segment [Member]
Segment Reporting Information [Line Items]
Net sales									278,026	259,459	252,241
Depreciation and amortization									12,000	11,334	12,060
Income from operations									31,872	27,380	24,900
Assets	214,291				197,980				214,291	197,980	198,770
Expenditures for long-lived assets	10,941				9,250				10,941	9,250	14,875
Operating Segments [Member] \| Autocam Precision Components Segment [Member]
Segment Reporting Information [Line Items]
Net sales									177,224	78,756	76,746
Depreciation and amortization									9,070	4,313	4,243
Income from operations									15,732	9,112	6,955
Assets	444,548				39,432				444,548	39,432	40,727
Expenditures for long-lived assets	10,947				4,640				10,947	4,640	1,511
Operating Segments [Member] \| Plastic and Rubber Components Segment [Member]
Segment Reporting Information [Line Items]
Net sales									33,351	34,991	41,097
Depreciation and amortization									1,160	1,347	1,366
Income from operations									1,231	592	1,807
Assets	17,196				16,638				17,196	16,638	19,232
Expenditures for long-lived assets	673				1,015				673	1,015	703
Corporate and Consolidations [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization									-84	-37	-26
Income from operations									-21,148	-9,257	-8,591
Interest expense									12,293	2,374	3,878
Income tax (benefit) expense									5,786	8,000	-3,927
Net income (loss)									8,217	17,178	24,268
Assets	36,678				8,352				36,678	8,352	6,614
Expenditures for long-lived assets	$5,041				$345				$5,041	$345

Segment_Information_Revenue_fr

Segment Information - Revenue from External Customers and Long-lived Assets (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$153,761	$125,632	$106,680	$102,528	$90,081	$93,023	$96,305	$93,797	$488,601	$373,206	$370,084
Property, plant and equipment, net	278,442				121,089				278,442	121,089	119,687
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									204,360	140,875	144,375
Property, plant and equipment, net	129,232				42,573				129,232	42,573	42,884
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									167,665	149,649	140,208
Property, plant and equipment, net	82,783				57,505				82,783	57,505	54,768
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									58,470	38,233	39,576
Property, plant and equipment, net	32,848				21,011				32,848	21,011	22,035
Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									8,657	9,415	7,464
Mexico [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									25,900	21,963	24,030
Property, plant and equipment, net	2,637								2,637
South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									23,549	13,071	14,431
Property, plant and equipment, net	30,942								30,942
All Foreign Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									284,241	232,331	225,709
Property, plant and equipment, net	$149,210				$78,516				$149,210	$78,516	$76,803

Income_Taxes_Income_Loss_Befor

Income Taxes - Income (Loss) Before Provision (Benefit) for Income Taxes (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income (loss) before provision (benefit) for income taxes:
United States	($9,341)	$8,259	$7,385
Foreign	22,513	16,919	12,956
Income before provision (benefit) for income taxes and share of net income from joint venture	$13,172	$25,178	$20,341

Income_Taxes_Income_Tax_Expens

Income Taxes - Income Tax Expense (Benefit) (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current:
U.S. Federal			($115)
State	37	179	345
Foreign	7,082	4,490	2,910
Total current expense	7,119	4,669	3,140
Deferred:
U.S. Federal	1,625	3,594	2,789
State	-382	145	12
U.S. deferred tax valuation allowance	-1,434	-818	-9,814
Foreign	-1,142	410	-54
Total deferred expense (benefit)	-1,333	3,331	-7,067
Total expense (benefit)	$5,786	$8,000	($3,927)

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	0 Months Ended	3 Months Ended			12 Months Ended
In Thousands, unless otherwise specified	Dec. 27, 2012	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	Dec. 27, 2012	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2012	Business	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Line Items]
U.S. federal statutory rate					34.00%	34.00%	34.00%
Loss realized from continuing operation					($9,341)	$8,259	$7,385
Acquisition related cost of which loss realized		1,473	8,407		9,248
Foreign tax credit expiration					1,302
Non-deductible mergers and acquisition costs					1,971
Effective tax rate on non deductible expense					44.00%	32.00%	19.00%
Non-U.S. earnings taxed at different rates					1,714	834	1,606
Decrease in valuation allowance					-1,434	-818	-12,740
Acquisition related cost non - deductible					6,000
Valuation allowance on deferred tax assets		1,434		2,252	1,434	1,434	2,252	12,066
Tax credit expiration date					31-Dec-14
Number of acquisitions					4
2012 and 2011 Combined pre tax income							9,000
Net operating losses used to offset tax expenses				9,000
Fully utilization period of net operating losses, Start year							2013
Fully utilization period of net operating losses, End year							2014
Reversal of Deferred tax assets valuation allowance							8,512
Distribution to US Parent company	48,000
Distribution pertained to earnings and profits earned							9,000
Impact of tax in earnings and profits							3,079
Unrecognized tax benefits		3,834			3,834
Additional foreign interest and penalties		1,003			1,003
Autocam [Member]
Income Taxes [Line Items]
Deferred liability net of tax		43,803			43,803
Foreign Tax Authority [Member]
Income Taxes [Line Items]
Interest accrued on income taxes		31			31	32
Increase decrease in interest and penalties				443			443
Domestic Tax Authority [Member]
Income Taxes [Line Items]
Interest accrued on income taxes		17			17
Increase decrease in interest and penalties				245			245
United States [Member]
Income Taxes [Line Items]
Acquisition related cost of which loss realized					$14,831

Income_Taxes_Reconciliation_of

Income Taxes - Reconciliation of Income Taxes Based on U.S. Federal Statutory Rate (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Income taxes at the federal statutory rate	$4,478	$8,561	$6,916
Impact of incentive stock options	-145	261	371
Decrease in valuation allowance	-1,434	-818	-12,740
Foreign tax credit expiration	2,736	818
Capital gain on return of basis			3,079
State taxes, net of federal taxes	-362	198	334
Non-U.S. earnings taxed at different rates	-1,714	-834	-1,606
Non-deductible mergers and acquisition costs	1,971
R&D Tax credit	-529
Joint Venture dividend	737
Change in uncertain tax positions		32	-115
Other permanent differences, net	48	-218	-166
Total expense (benefit)	$5,786	$8,000	($3,927)

Income_Taxes_Tax_Effects_of_Te

Income Taxes - Tax Effects of Temporary Differences (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Deferred income tax liabilities:
Tax in excess of book depreciation	$35,411	$6,673	$6,670
Goodwill	1,949	2,213	1,987
Intangible assets	15,944
Other deferred tax liabilities	1,924	63	112
Gross deferred income tax liabilities	55,228	8,949	8,769
Deferred income tax assets:
Goodwill	2,411	3,215	4,141
Inventories	2,035	836	768
Pension/Personnel accruals	3,029	856	921
Net operating loss carry forwards	1,196	1,351	3,682
Foreign tax credits	290	3,026	3,844
Guarantee claim deduction	1,141	1,141	1,141
Credit carry forwards	1,853
Accruals and reserves		114	293
Other deferred tax assets	1,926	832	550
Gross deferred income tax assets	13,881	11,371	15,340
Valuation allowance on deferred tax assets	-1,434	-1,434	-2,252	-12,066
Net deferred income tax assets	13,881	9,937	13,088
Net deferred income tax assets (liabilities)	($41,347)	$988	$4,319

Income_Taxes_Summary_of_Activi

Income Taxes - Summary of Activity in Total Valuation Allowances (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Balance at Beginning of Year	$1,434	$2,252	$12,066
Additions	0	0	0
Recoveries	-1,434	-818	-9,814
Balance at End of Year	$1,434	$1,434	$2,252

Income_Taxes_Summary_of_Reconc

Income Taxes - Summary of Reconciliation of Beginning and Ending Amounts of Unrecognized Tax Benefits, Excluding Interest and Penalties (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Beginning balance	$873	$988
Additions for tax positions of prior years	3,589	428
Reductions for tax positions of prior years	-628	-543
Ending balance	$3,834	$873

Reconciliation_of_Net_Income_P2

Reconciliation of Net Income Per Share - Summary of Reconciliation of Net Income (Loss) Per Share (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Earnings Per Share [Abstract]
Net income	$1,619	($3,840)	$5,200	$5,238	$4,485	$5,052	$4,770	$2,871	$8,217	$17,178	$24,268
Weighted average shares outstanding	18,970	17,979	17,779	17,656	17,527	17,302	17,136	17,055	17,887	17,176	17,009
Effective of dilutive stock options	347		393	306	290	148	36	107	366	84	105
Diluted shares outstanding	19,317	17,979	18,172	17,962	17,817	17,450	17,172	17,162	18,253	17,260	17,114
Basic net income per share	$0.09	($0.21)	$0.29	$0.30	$0.25	$0.29	$0.28	$0.17	$0.46	$1	$1.43
Diluted net income per share	$0.08	($0.21)	$0.29	$0.29	$0.25	$0.29	$0.28	$0.17	$0.45	$1	$1.42

Reconciliation_of_Net_Income_P3

Reconciliation of Net Income Per Share - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Earnings Per Share [Abstract]
Anti-dilutive options	98	1,148	1,187
Anti-dilutive securities excluded from computation of earnings per share minimum price range	$19.63	$8.54	$8.54
Anti-dilutive securities excluded from computation of earnings per share maximum price range one	$22.69	$14.13	$14.13

Commitments_and_Contingencies_1

Commitments and Contingencies - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Commitments and Contingencies Disclosure [Abstract]
Rent expenses	$4,455	$2,325	$2,375
Possible loss estimated minimum	0
Possible loss estimated maximum	6,000
Amount accrued for estimation of loss	0
Recognized loss contingency	$0	$200

Commitments_and_Contingencies_2

Commitments and Contingencies - Schedule by Year of Future Minimum Lease Payments (Detail) (USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
2015	$5,434
2016	5,112
2017	3,430
2018	2,214
2019	1,831
Thereafter	5,454
Total minimum lease payments	$23,475

Investment_in_NonConsolidated_2

Investment in Non-Consolidated Joint Venture - Additional Information (Detail) (USD $)	3 Months Ended								12 Months Ended			1 Months Ended	4 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2014	Dec. 31, 2014	Aug. 29, 2014
Schedule Of Results Related To Equity Accounted Investees [Line Items]
Net sales	$153,761,000	$125,632,000	$106,680,000	$102,528,000	$90,081,000	$93,023,000	$96,305,000	$93,797,000	$488,601,000	$373,206,000	$370,084,000
Net income	1,619,000	-3,840,000	5,200,000	5,238,000	4,485,000	5,052,000	4,770,000	2,871,000	8,217,000	17,178,000	24,268,000
Joint Venture [Member]
Schedule Of Results Related To Equity Accounted Investees [Line Items]
Acquired investment in joint venture	49.00%								49.00%				49.00%	49.00%
Dividend declared by joint venture	0								0				0
Dividend receivable, year	2015								2015				2015
Withholding tax levied by Chinese government									10.00%
Autocam [Member]
Schedule Of Results Related To Equity Accounted Investees [Line Items]
Net income									3,686,000			3,686,000
Autocam [Member] \| Joint Venture [Member]
Schedule Of Results Related To Equity Accounted Investees [Line Items]
Net sales									50,466,000				36,000
Amount due from joint venture	154,000								154,000				154,000
Net income									9,004,000
Income Approach Valuation Technique [Member] \| Equity Method Investments [Member] \| Joint Venture [Member]
Schedule Of Results Related To Equity Accounted Investees [Line Items]
Joint venture investment, fair value														35,595,000

Investment_in_NonConsolidated_3

Investment in Non-Consolidated Joint Venture - Components of Joint Venture Investment (Detail) (USD $)	12 Months Ended	4 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2014
Schedule Of Results Related To Equity Accounted Investees [Line Items]
Dividends received	($2,284)
Ending Balance	34,703	34,703
Joint Venture [Member]
Schedule Of Results Related To Equity Accounted Investees [Line Items]
Beginning Balance		35,595
Dividends received		-2,538
Our share of cumulative earnings		1,646
Ending Balance	$34,703	$34,703

Investment_in_NonConsolidated_4

Investment in Non-Consolidated Joint Venture - Summarized Balance Sheet Information for Joint Venture (Detail) (Joint Venture [Member], USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified	Dec. 31, 2014
Joint Venture [Member]
Schedule Of Results Related To Equity Accounted Investees [Line Items]
Current assets	$24,140
Non-current assets	21,519
Total assets	45,659
Current liabilities	14,162
Total liabilities	$14,162

Quarterly_Results_of_Operation2

Quarterly Results of Operations (Unaudited) - Summary of Unaudited Quarterly Results of Operations (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quarterly Financial Information Disclosure [Abstract]
Net sales	$153,761	$125,632	$106,680	$102,528	$90,081	$93,023	$96,305	$93,797	$488,601	$373,206	$370,084
Income from operations	8,560	2,552	8,237	8,338	6,474	7,794	7,920	5,639	27,687	27,827	25,071
Net income	$1,619	($3,840)	$5,200	$5,238	$4,485	$5,052	$4,770	$2,871	$8,217	$17,178	$24,268
Basic net income per share	$0.09	($0.21)	$0.29	$0.30	$0.25	$0.29	$0.28	$0.17	$0.46	$1	$1.43
Diluted net income per share	$0.08	($0.21)	$0.29	$0.29	$0.25	$0.29	$0.28	$0.17	$0.45	$1	$1.42
Weighted average shares outstanding:
Basic number of shares	18,970	17,979	17,779	17,656	17,527	17,302	17,136	17,055	17,887	17,176	17,009
Effect of dilutive stock options	347		393	306	290	148	36	107	366	84	105
Diluted number of shares	19,317	17,979	18,172	17,962	17,817	17,450	17,172	17,162	18,253	17,260	17,114

Quarterly_Results_of_Operation3

Quarterly Results of Operations (Unaudited) - Additional Information (Detail) (USD $)	3 Months Ended			12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Mar. 31, 2013	Dec. 31, 2014
	Dec. 31, 2014	Acquisition	Mar. 31, 2013	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Merger and acquisition related costs before tax	$1,473	$8,407		$9,248
Merger and acquisition related costs after tax	3,199	7,319
Number Of business acquisitions closed		4
Debt issuance Cost Write Off Before Tax		2,974
Debt issuance Cost Write Off After Tax		1,903
Foreign exchange gains or losses on intercompany loans after tax			350
Restructuring and non-operating charges			$399

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income - Additional Information (Detail) (USD $)	4 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Equity [Abstract]
Other comprehensive income (loss) due to foreign currency translations	($17,731)	($17,731)	$3,899	$2,806
Change in fair value of interest rate hedge		-431
Actuarial losses of net of tax	$94	$299

Interest_Rate_Hedging_Addition

Interest Rate Hedging - Additional Information (Detail) (USD $)	0 Months Ended
In Thousands, unless otherwise specified	Dec. 16, 2014	Dec. 31, 2014	Dec. 16, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Amount of swap			$150,000
Description of term of swap	Effective December 16, 2014, we entered into a $150,000 swap that will go into effect on December 29, 2015 (one year delayed start), at which time our rate will be locked at 7.216% until December 31, 2018.
Locked interest rate			7.22%
Derivative maturity date	31-Dec-18
Derivative inception date	29-Dec-15
Derivative in Net liability position		$431

Interest_Rate_Hedging_Financia

Interest Rate Hedging - Financial Assets and Liabilities Valued on Recurring Basis (Detail) (USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Derivative Assets	$867
Derivative Liabilities	-1,298
Derivative Assets and Liabilities, Total	-431
Significant Other Observable Inputs Level2 Member
Derivatives, Fair Value [Line Items]
Derivative Assets	867
Derivative Liabilities	-1,298
Derivative Assets and Liabilities, Total	-431
Significant Unobservable Inputs Level 3 Member
Derivatives, Fair Value [Line Items]
Derivative Liabilities	$0

Interest_Rate_Hedging_Derivati

Interest Rate Hedging - Derivatives' Cash Flow Hedging Relationships (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Amount of after tax of gain/(loss) recognized in Other Comprehensive Income on Derivatives (effective portion)	($431)
Pre-tax amount of gain/(loss) reclassified from Accumulated Other Comprehensive Income into Income (effective portion)	0	0
Interest Expense [Member] \| Forward Starting Interest Rate Swap Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of after tax of gain/(loss) recognized in Other Comprehensive Income on Derivatives (effective portion)	-431
Pre-tax amount of gain/(loss) reclassified from Accumulated Other Comprehensive Income into Income (effective portion)	$0	$0