Altra Industrial Motion (AIMC) 10-Q 26 Oct 16 2016 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2016	Oct. 19, 2016
Document And Entity Information [Abstract]
Entity Registrant Name	Altra Industrial Motion Corp.
Entity Central Index Key	1,374,535
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding (in shares)		25,884,323

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 39,765	$ 50,320
Trade receivables, less allowance for doubtful accounts of $2,150 and $2,165 at September 30, 2016 and December 31, 2015, respectively	104,671	94,720
Inventories	121,443	121,156
Income tax receivable	2,644	5,146
Prepaid expenses and other current assets	10,486	11,217
Assets held for sale	4,732	4,597
Total current assets	283,741	287,156
Property, plant and equipment, net	142,748	145,413
Intangible assets, net	90,508	96,069
Goodwill	97,775	97,309
Deferred income taxes	3,197	3,201
Other non-current assets, net	2,489	3,184
Total assets	620,458	632,332
Current liabilities:
Accounts payable	41,845	40,297
Accrued payroll	22,141	22,312
Accruals and other current liabilities	36,721	34,990
Income tax payable	3,891	3,563
Current portion of long-term debt	400	3,187
Total current liabilities	104,998	104,349
Long-term debt - less current portion and net of unaccreted discount	209,754	231,568
Deferred income taxes	44,299	44,185
Pension liabilities	9,171	8,328
Long-term taxes payable	670	647
Other long-term liabilities	691	688
Stockholders’ equity:
Common stock ($0.001 par value, 90,000,000 shares authorized, 25,684,806 and 25,772,507 issued and outstanding at September 30, 2016 and December 31, 2015, respectively)	26	26
Additional paid-in capital	122,203	124,834
Retained earnings	193,344	181,539
Accumulated other comprehensive loss	(64,698)	(63,832)
Total stockholders’ equity	250,875	242,567
Total liabilities, and stockholders’ equity	$ 620,458	$ 632,332

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Statement Of Financial Position [Abstract]
Allowance for doubtful accounts	$ 2,150	$ 2,165
Common stock, par value (in usd per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	90,000,000	90,000,000
Common stock, shares issued (in shares)	25,684,806	25,772,507
Common stock, shares outstanding (in shares)	25,684,806	25,772,507

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Statement [Abstract]
Net sales	$ 173,132	$ 183,053	$ 536,259	$ 573,024
Cost of sales	118,957	127,253	369,254	398,765
Gross profit	54,175	55,800	167,005	174,259
Operating expenses:
Selling, general and administrative expenses	36,142	34,279	105,548	105,733
Research and development expenses	4,267	4,210	13,345	13,506
Restructuring costs	3,397	651	6,591	4,994
Total operating expenses	43,806	39,140	125,484	124,233
Income from operations	10,369	16,660	41,521	50,026
Other non-operating income and expense:
Interest expense, net	2,815	2,924	8,615	8,858
Other non-operating expense (income), net	45	685	(438)	606
Total other non-operating expense, net	2,860	3,609	8,177	9,464
Income before income taxes	7,509	13,051	33,344	40,562
Provision for income taxes	2,196	2,830	9,872	11,326
Net income	5,313	10,221	23,472	29,236
Net loss attributable to non-controlling interest	0	0	0	63
Net income attributable to Altra Industrial Motion Corp.	$ 5,313	$ 10,221	$ 23,472	$ 29,299
Weighted average shares, basic	25,726	26,145	25,684	26,140
Weighted average shares, diluted	26,021	26,145	25,813	26,184
Net income per share:
Basic net income attributable to Altra Industrial Motion Corp.	$ 0.21	$ 0.39	$ 0.91	$ 1.12
Diluted net income attributable to Altra Industrial Motion Corp.	0.20	0.39	0.91	1.12
Cash dividend declared	$ 0.15	$ 0.15	$ 0.45	$ 0.42

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement Of Income And Comprehensive Income [Abstract]
Net Income	$ 5,313	$ 10,221	$ 23,472	$ 29,236
Other Comprehensive income (loss):
Foreign currency translation adjustment	104	(4,474)	(866)	(16,242)
Change in fair value of interest rate swap, net of tax	0	(64)	0	(283)
Other comprehensive loss	104	(4,538)	(866)	(16,525)
Comprehensive income	5,417	5,683	22,606	12,711
Comprehensive loss attributable to non-controlling interest	0	0	0	(192)
Comprehensive income attributable to Altra Industrial Motion Corp.	$ 5,417	$ 5,683	$ 22,606	$ 12,903

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities
Net Income	$ 23,472	$ 29,236
Adjustments to reconcile net income to net cash flows:
Depreciation	16,235	16,232
Amortization of intangible assets	6,384	6,437
Amortization of deferred financing costs	590	689
Gain on foreign currency, net	(130)	(128)
Accretion of debt discount, net	2,970	2,740
Loss on disposal / impairment of fixed assets	582	856
Stock based compensation	3,370	3,231
Changes in assets and liabilities:
Trade receivables	(10,461)	(1,552)
Inventories	(837)	2,367
Accounts payable and accrued liabilities	3,226	7,106
Other current assets and liabilities	728	(2,609)
Other operating assets and liabilities	765	(1,060)
Net cash provided by operating activities	46,894	63,545
Cash flows from investing activities
Purchase of property, plant and equipment	(15,684)	(19,181)
Proceeds from sale of land		1,201
Net cash used in investing activities	(15,684)	(17,980)
Cash flows from financing activities
Payments on term loan facility	0	(16,027)
Payments on Revolving Credit Facility	(30,870)	(9,000)
Dividend payments	(7,784)	(7,130)
Proceeds from equipment and working capital notes	2,893	1,100
Borrowing under Revolving Credit Facility	3,000	6,000
Payments of equipment and working capital notes	(2,832)	(3,639)
Proceeds from mortgages and other debt	0	7,085
Shares surrendered for tax withholding	(1,288)	(1,182)
Payments on mortgages and other debt	(349)	(352)
Purchase of non-controlling interest	0	(878)
Purchases of common stock under share repurchase program	(4,713)	(14,285)
Net cash used in financing activities	(41,943)	(38,308)
Effect of exchange rate changes on cash and cash equivalents	178	(5,111)
Net change in cash and cash equivalents	(10,555)	2,146
Cash and cash equivalents at beginning of year	50,320	47,503
Cash and cash equivalents at end of period	39,765	49,649
Cash paid during the period for:
Interest	5,856	5,995
Income taxes	$ 7,665	$ 10,833

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Redeemable Non-Controlling Interest [Member]
Beginning balance at Dec. 31, 2014	$ 258,759	$ 26	$ 139,087	$ 161,061	$ (41,415)	$ 883
Beginning balance (in shares) at Dec. 31, 2014		26,354
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation and vesting of restricted stock	2,049		2,049
Stock-based compensation and vesting of restricted stock (in shares)		76
Net income attributable to Altra Industrial Motion Corp.	29,299			29,299
Net loss attributable to non-controlling interest	63					(63)
Purchase of Minority Interest	(187)		223		(410)	(691)
Dividends declared	(11,038)			(11,038)
Change in fair value of interest rate swap	(283)				(283)
Cumulative foreign currency translation adjustment	(16,242)				(16,242)	$ (129)
Repurchases of common stock	(14,285)		(14,285)
Repurchases of common stock (in shares)		(548)
Ending balance at Sep. 30, 2015	248,072	$ 26	127,074	179,322	(58,350)
Ending balance (in shares) at Sep. 30, 2015		25,882
Beginning balance at Dec. 31, 2015	242,567	$ 26	124,834	181,539	(63,832)
Beginning balance (in shares) at Dec. 31, 2015		25,773
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation and vesting of restricted stock	2,082		2,082
Stock-based compensation and vesting of restricted stock (in shares)		89
Net income attributable to Altra Industrial Motion Corp.	23,472			23,472
Net loss attributable to non-controlling interest	0
Dividends declared	(11,667)			(11,667)
Cumulative foreign currency translation adjustment	(866)				(866)
Repurchases of common stock	(4,713)		(4,713)
Repurchases of common stock (in shares)		(177)
Ending balance at Sep. 30, 2016	$ 250,875	$ 26	$ 122,203	$ 193,344	$ (64,698)
Ending balance (in shares) at Sep. 30, 2016		25,685

Organization and Nature of Oper

Organization and Nature of Operations	9 Months Ended
	Sep. 30, 2016
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Organization and Nature of Operations	1. Organization and Nature of Operations Headquartered in Braintree, Massachusetts, Altra Industrial Motion Corp. (the “Company”) is a leading multi-national designer, producer and marketer of a wide range of electro-mechanical power transmission products. The Company brings together strong brands covering over 42 product lines with production facilities in twelve countries. Altra’s leading brands include Ameridrives Couplings, Bauer Gear Motor, Bibby Turboflex, Boston Gear, Delroyd Worm Gear, Formsprag Clutch, Guardian Couplings, Huco, Industrial Clutch, Inertia Dynamics, Kilian Manufacturing, Lamiflex Couplings, Marland Clutch, Matrix, Nuttall Gear, Stieber Clutch, Svendborg Brakes, TB Wood’s, Twiflex, Warner Electric, Warner Linear, and Wichita Clutch.

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2016
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Basis of Presentation	2. Basis of Presentation The Company’s unaudited condensed consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and do not include all of the information and note disclosures required by accounting principles generally accepted in the United States of America. These statements should be read in conjunction with the financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015. In the opinion of management, the accompanying unaudited condensed consolidated financial statements include all adjustments, consisting of normal recurring adjustments, necessary to present fairly the Company’s financial position for the interim periods presented, and cash flows for the interim periods presented. The results are not necessarily indicative of future results. The Company considers events or transactions that occur after the balance sheet date but before the financial statements are issued to provide additional evidence relative to certain estimates or to identify matters that require additional disclosure.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	9 Months Ended
	Sep. 30, 2016
Accounting Changes And Error Corrections [Abstract]
Recent Accounting Pronouncements	3. Recent Accounting Pronouncements In August 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2016-15, Statement of Cash Flows (Topic 230): Classification of certain cash receipts and cash payments (a consensus of the emerging issues task force) In June 2016, the FASB issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments In March 2016, the FASB issued ASU 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting In February 2015, the FASB issued ASU 2016-02, Leases (Topic 842) In May 2014, the FASB issued ASU No. 2014-09 Revenue from Contracts with Customers

Fair Value of Financial Instrum

Fair Value of Financial Instruments	9 Months Ended
	Sep. 30, 2016
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	4. Fair Value of Financial Instruments Fair value is determined based upon the exit price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants, as determined by either the principal market or the most advantageous market. Inputs used in the valuation techniques to derive fair values are classified based on a three-level hierarchy, as follows: • Level 1- Quoted prices in active markets for identical assets or liabilities. • Level 2- Observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets with insufficient volume or infrequent transactions (less active markets); or model-derived • Level 3- Unobservable inputs to the valuation methodology that are significant to the measurement of fair value of assets or liabilities. The Company considers all highly liquid investments purchased with a remaining maturity of three months or less to be cash equivalents. The carrying values of financial instruments, including accounts receivable, cash equivalents, accounts payable, and other accrued liabilities approximate fair value. Debt under the Company’s 2015 Credit Agreement approximates the fair value due to the variable rate nature at current market rates. The carrying amount of the 2.75% Convertible Notes (the “Convertible Notes”) was $85 million at both September 30, 2016 and December 31, 2015. The estimated fair value of the Convertible Notes at September 30, 2016 and December 31, 2015 was $101.6 million and $91.7 million, respectively, based on inputs other than quoted prices that are observable for the Convertible Notes (Level 2). Included in cash and cash equivalents at September 30, 2016 and December 31, 2015 are money market fund investments of $0.3 million, which are reported at fair value based on quoted market prices for such investments (Level 1).

Changes in Accumulated Other Co

Changes in Accumulated Other Comprehensive Loss by Component	9 Months Ended
	Sep. 30, 2016
Equity [Abstract]
Changes in Accumulated Other Comprehensive Income (Loss) by Component	5. Changes in Accumulated Other Comprehensive Loss by Component The following is a reconciliation of changes in accumulated other comprehensive loss by component for the periods presented: Gains and Losses on Cash Flow Hedges Defined Benefit Pension Plans Cumulative Foreign Currency Translation Adjustment Total Accumulated Other Comprehensive Loss by Component, January 1, 2016 $ (140 ) $ (5,807 ) $ (57,885 ) $ (63,832 ) Net current-period Other Comprehensive Income (Loss) — 134 (1,000 ) (866 ) Accumulated Other Comprehensive Loss by Component, September 30, 2016 $ (140 ) $ (5,673 ) $ (58,885 ) $ (64,698 ) Gains and Losses on Cash Flow Hedges Defined Benefit Pension Plans Cumulative Foreign Currency Translation Adjustment Total Accumulated Other Comprehensive Income (Loss) by Component, January 1, 2015 $ 143 $ (4,818 ) $ (36,740 ) $ (41,415 ) Cumulative losses transferred from Lamiflex — — (410 ) (410 ) Net current-period Other Comprehensive Loss (283 ) — (16,242 ) (16,525 ) Accumulated Other Comprehensive Loss by Component, September 30, 2015 $ (140 ) $ (4,818 ) $ (53,392 ) $ (58,350 )

Net Income per Share

Net Income per Share	9 Months Ended
	Sep. 30, 2016
Earnings Per Share [Abstract]
Net Income per Share	6. Net Income per Share Basic earnings per share is based on the weighted average number of shares of common stock outstanding, and diluted earnings per share is based on the weighted average number of shares of common stock outstanding and all potentially dilutive common stock equivalents outstanding. Common stock equivalents are included in the per share calculations when the effect of their inclusion is dilutive. The following is a reconciliation of basic to diluted net income per share: Quarter Ended Year to Date Ended September 30, 2016 September 30, 2015 September 30, 2016 September 30, 2015 Net income attributable to Altra Industrial Motion Corp. $ 5,313 $ 10,221 $ 23,472 $ 29,299 Shares used in net income per common share - basic 25,726 26,145 25,684 26,140 Dilutive effect of the equity premium on Convertible Notes at the average price of common stock 295 - 123 38 Incremental shares of unvested restricted common stock - - 6 6 Shares used in net income per common share - diluted 26,021 26,145 25,813 26,184 Earnings per share: Basic net income attributable to Altra Industrial Motion Corp. $ 0.21 $ 0.39 $ 0.91 $ 1.12 Diluted net income attributable to Altra Industrial Motion Corp. $ 0.20 $ 0.39 $ 0.91 $ 1.12 During the quarter ended September 30, 2016, the Company’s common stock price exceeded the current conversion price of the Company’s Convertible Notes, resulting in additional shares being included in net income per common share in the diluted earnings per share calculation above.

Inventories

Inventories	9 Months Ended
	Sep. 30, 2016
Inventory Disclosure [Abstract]
Inventories	7. Inventories Inventories at September 30, 2016 and December 31, 2015 consisted of the following: September 30, 2016 December 31, 2015 Raw materials $ 35,758 $ 34,169 Work in process 11,915 12,864 Finished goods 73,770 74,123 $ 121,443 $ 121,156

Goodwill and Intangible Assets

Goodwill and Intangible Assets	9 Months Ended
	Sep. 30, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	8. Goodwill and Intangible Assets Changes in goodwill from January 1, through September 30, 2016 were as follows: Couplings, Clutches & Brakes Electromagnetic Clutches & Brakes Gearing Total Net goodwill balance January 1, 2016 $ 25,290 $ 24,661 $ 47,358 $ 97,309 Impact of changes in foreign currency and other 136 29 301 466 Net goodwill balance September 30, 2016 $ 25,426 $ 24,690 $ 47,659 $ 97,775 Other intangible assets as of September 30, 2016 and December 31, 2015 consisted of the following: September 30, 2016 December 31, 2015 Cost Accumulated Amortization Net Cost Accumulated Amortization Net Other intangible assets Intangible assets not subject to amortization: Tradenames and trademarks $ 39,305 $ — $ 39,305 $ 39,625 $ — $ 39,625 Intangible assets subject to amortization: Customer relationships 113,309 62,744 $ 50,565 112,408 56,677 55,731 Product technology and patents 6,111 5,473 $ 638 6,049 5,336 713 Total intangible assets $ 158,725 $ 68,217 $ 90,508 $ 158,082 $ 62,013 $ 96,069 The Company recorded $2.1 million of amortization expense in each of the quarters ended September 30, 2016 and 2015, and recorded $6.4 of amortization in each of the year to date periods ended September 30, 2016 and 2015. The estimated amortization expense for intangible assets is approximately $2.0 million for the remainder of 2016, $8.3 million in each of the next four years and then $16.1 million thereafter.

Warranty Costs

Warranty Costs	9 Months Ended
	Sep. 30, 2016
Guarantees [Abstract]
Warranty Costs	9. Warranty Costs The contractual warranty period of the Company's products generally ranges from three months to two years with certain warranties extending for longer periods. Estimated expenses related to product warranties are accrued at the time products are sold to customers and are recorded in accruals and other current liabilities on the unaudited condensed consolidated balance sheet. Estimates are established using historical information as to the nature, frequency and average costs of warranty claims. Changes in the carrying amount of accrued product warranty costs for each of the year-to-date periods ended September 30, 2016 and September 30, 2015 are as follows: September 30, 2016 September 30, 2015 Balance at beginning of period $ 9,468 $ 7,792 Accrued current period warranty expense 1,732 3,641 Payments and adjustments (2,700 ) (1,760 ) Balance at end of period $ 8,500 $ 9,673

Debt

Debt	9 Months Ended
	Sep. 30, 2016
Debt Disclosure [Abstract]
Debt	10. Debt Outstanding debt obligations at September 30, 2016 and December 31, 2015 were as follows. September 30, 2016 December 31, 2015 Debt: Revolving Credit Facility $ 117,509 $ 145,152 Convertible Notes 85,000 85,000 Mortgages 13,339 10,333 Equipment and working capital notes — 2,832 Capital leases 398 500 Total debt 216,246 243,817 Less: debt discount, net of accretion (6,092 ) (9,062 ) Total debt, net of unaccreted discount $ 210,154 $ 234,755 Less current portion of long-term debt (400 ) (3,187 ) Total long-term debt, net of unaccreted discount $ 209,754 $ 231,568 Second Amended and Restated Credit Agreement On October 22, 2015, the Company entered into a Second Amended and Restated Credit Agreement by and among the Company, Altra Industrial Motion Netherlands, B.V. (“Altra Netherlands”), one of the Company’s foreign subsidiaries (collectively with the Company, the “Borrowers”), the lenders party to the Second Amended and Restated Credit Agreement from time to time (collectively, the “Lenders”), J.P. Morgan Securities LLC, Wells Fargo Securities, LLC, and KeyBanc Capital Markets, Inc., as joint lead arrangers and joint bookrunners, and JPMorgan Chase Bank, N.A., as administrative agent (the “Administrative Agent”), to be guaranteed through a Guarantee Agreement by certain domestic subsidiaries of the Company (each a “Guarantor” and collectively the “Guarantors”; the Guarantors collectively with the Borrowers, the “Loan Parties”), and which may be amended from time to time (the “2015 Credit Agreement”). The 2015 Credit Agreement amends and restates the Company’s former Amended and Restated Credit Agreement, dated as of December 6, 2013, as amended (the “2013 Credit Agreement”), by and among the Company, and certain of its domestic subsidiaries, including former subsidiary Altra Power Transmission, Inc., the lenders party to the Amended and Restated Credit Agreement from time to time (the “Former Lenders”), J.P. Morgan Securities LLC, Wells Fargo Securities, LLC, and KeyBanc Capital Markets, Inc., as joint lead arrangers and joint bookrunners, and the Administrative Agent, guaranteed by certain domestic subsidiaries of the Company. The 2013 Credit Agreement itself was an amendment and restatement of a prior credit agreement. Pursuant to the 2013 Credit Agreement, the Former Lenders had made available to the Borrowers a revolving credit facility (the “Prior Revolving Credit Facility”) of $200 million, which continued in effect an existing term loan then having a balance of approximately $94 million, and made an additional term loan of €50 million to Altra Netherlands. The two term loans described in the prior sentence are collectively referred to as the “Term Loans.” Under the 2015 Credit Agreement, the amount of the Prior Revolving Credit Facility was increased to $350 million (the “2015 Revolving Credit Facility”). The amounts available under the 2015 Revolving Credit Facility can be used for general corporate purposes, including acquisitions, and to repay existing indebtedness. A portion of the 2015 Revolving Credit Facility was used to repay the Term Loans. The Company wrote off approximately $0.5 million of previously recognized deferred financing costs in connection with the repayment. The stated maturity of the 2015 Revolving Credit Facility was extended to October 22, 2020. The maturity of the Prior Revolving Credit Facility had been December 6, 2018. The 2015 Credit Agreement continues to provide for a possible expansion of the credit facilities by an additional $150 million, which can be allocated as additional term loans and/or additional revolving credit loans. The amounts available under the 2015 Revolving Credit Facility may be drawn upon in accordance with the terms of the 2015 Credit Agreement. All amounts outstanding under the 2015 Revolving Credit Facility are due on the stated maturity or such earlier time, if any, required under the 2015 Credit Agreement. The amounts owed under the 2015 Revolving Credit Facility may be prepaid at any time, subject to usual notification and breakage payment provisions. Interest on the amounts outstanding under the 2015 Revolving Credit Facility is calculated using either an ABR Rate or Eurodollar Rate, plus the applicable margin. The applicable margins for Eurodollar Loans are between 1.25% to 2.00%, and for ABR Loans are between 0.25% and 1.00%. The amounts of the margins are calculated based on either a consolidated total net leverage ratio (as defined in the 2015 Credit Agreement), or the then applicable rating(s) of the Company’s debt and then to the extent as provided in the 2015 Credit Agreement. The rate at December 31, 2015 was 1.5%. A portion of the 2015 Revolving Credit Facility may also be used for the issuance of letters of credit, and a portion of the amount of the 2015 Revolving Credit Facility is available for borrowings in certain agreed upon foreign currencies. The 2015 Credit Agreement contains various affirmative and negative covenants and restrictions, which among other things, will require the Borrowers to provide certain financial reports to the Lenders, require the Company to maintain certain financial covenants relating to consolidated leverage and interest coverage, limit maximum annual capital expenditures, and limit the ability of the Company and its subsidiaries to incur or guarantee additional indebtedness, pay dividends or make other equity distributions, purchase or redeem capital stock or debt, make certain investments, sell assets, engage in certain transactions, and effect a consolidation or merger. The 2015 Credit Agreement also contains customary events of default. Ratification Agreement Pursuant to an Omnibus Reaffirmation and Ratification and Amendment of Collateral Documents entered into on October 22, 2015 in connection with the 2015 Credit Agreement by and among the Company, the Loan Parties and the Administrative Agent (the “Ratification Agreement”), the Loan Parties (exclusive of the foreign subsidiary Borrower) have reaffirmed their obligations to the Lenders under the Pledge and Security Agreement dated November 20, 2012 (the “Pledge and Security Agreement”), pursuant to which each Loan Party pledges, assigns and grants to the Administrative Agent, on behalf of and for the ratable benefit of the Lenders, a security interest in all of its right, title and interest in, to and under all personal property, whether now owned by or owing to, or after acquired by or arising in favor of such Loan Party (including under any trade name or derivations), and whether owned or consigned by or to, or leased from or to, such Loan Party, and regardless of where located, except for specific excluded personal property identified in the Pledge and Security Agreement (collectively, the “Collateral”). Notwithstanding the foregoing, the Collateral does not include, among other items, more than 65% of the capital stock of the first tier foreign subsidiaries of the Company. The Pledge and Security Agreement contains other customary representations, warranties and covenants of the parties. The 2015 Credit Agreement provides that the obligation to grant the security interest can cease upon the obtaining of certain corporate family credit ratings for the Company, but the obligation to grant a security interest is subject to subsequent reinstatement if the ratings are not maintained as provided in the 2015 Credit Agreement. Pursuant to the Ratification Agreement, the Loan Parties (other than the foregoing subsidiary Borrower) have also reaffirmed their obligations under each of the Patent Security Agreement and a Trademark Security Agreement in favor of the Administrative Agent dated November 20, 2012 (the “2012 Security Agreements”) pursuant to which each of the Loan Parties signatory thereto pledges, assigns and grants to the Administrative Agent, on behalf of and for the ratable benefit of the Lenders, a security interest in all of its right, title and interest in, to and under all registered patents, patent applications, registered trademarks and trademark applications owned by such Loan Parties. Additional Trademark Security Agreement and Patent Security Agreement In connection with the reaffirmation of the Pledge and Security Agreement, certain of the Loan Parties delivered a new Patent Security Agreement and a new Trademark Security Agreement in favor of the Administrative Agent pursuant to which each of the Loan Parties signatory thereto pledges, assigns and grants to the Administrative Agent, on behalf of and for the ratable benefit of the Lenders, a security interest in all of its right, title and interest in, to and under all registered patents, patent applications, registered trademarks and trademark applications owned by such Loan Parties and not covered by the 2012 Security Agreements. As of September 30, 2016 we had $117.5 million outstanding on our 2015 Revolving Credit Facility, including $109.2 million outstanding on our USD tranche at an interest rate of 2.0% and $8.3 million outstanding on our Euro tranche at an interest rate of 1.5%. As of September 30, 2016 and December 31, 2015, we had $4.1 million and $7.0 million in letters of credit outstanding, respectively. We had $228.4 million available to borrow under the 2015 Revolving Credit Facility at September 30, 2016. Convertible Senior Notes In March 2011, the Company issued the Convertible Notes due March 1, 2031. The Convertible Notes are guaranteed by the Company’s U.S. domestic subsidiaries. Interest on the Convertible Notes is payable semi-annually in arrears, on March 1 and September 1 of each year, commencing on September 1, 2011 at an annual rate of 2.75%. Proceeds from the offering were $81.3 million, net of fees and expenses that were capitalized. The proceeds from the offering were used to fund the acquisition of substantially all of the assets and liabilities of Danfoss Bauer GmbH relating to its gear motor business, as well as bolster the Company’s cash position. The Convertible Notes will mature on March 1, 2031, unless earlier redeemed, repurchased by the Company or converted, and are convertible into cash or shares, or a combination thereof, at the Company’s election. The Convertible Notes are convertible into shares of the Company’s common stock based on an initial conversion rate, subject to adjustment, of 36.0985 shares per $1,000 principal amount of notes (which represents an initial conversion price of approximately $27.70 per share of our common stock), in certain circumstances. The conversion price at September 30, 2016 is $25.70 per share. Prior to March 1, 2030, the Convertible Notes are convertible only in the following circumstances: (1) during any fiscal quarter commencing after June 30, 2011 if the last reported sale price of the Company’s common stock is greater than or equal to 130% of the applicable conversion price for at least 20 trading days in the period of 30 consecutive trading days ending on the last trading day of the preceding fiscal quarter; (2) during the 5 business day period after any 10 consecutive trading day period (the “measurement period”) in which the trading price per $1,000 principal amount of notes for each trading day in the measurement period was less than 97% of the product of the last reported sale price of the Company’s common stock and the conversion rate on such trading day; (3) if the Convertible Notes have been called for redemption; or (4) upon the occurrence of specified corporate transactions. On or after March 1, 2030, and ending at the close of business on the second business day immediately preceding the maturity date, holders may convert their Convertible Notes at any time, regardless of the foregoing circumstances. Upon conversion, the Company will pay or deliver, as the case may be, cash, shares of common stock, or a combination thereof, at the Company’s election. The Company intends to settle the principal amount in cash and any additional amounts in shares of stock. If a fundamental change occurs, the Convertible Notes are redeemable at a price equal to 100% of the principal amount of the notes to be repurchased, plus accrued and unpaid interest (including contingent interest and additional interest, if any) to, but excluding, the repurchase date. The Convertible Notes are also redeemable on each of March 1, 2018, March 1, 2021, and March 1, 2026 for cash at a price equal to 100% of the principal amount of the notes to be repurchased, plus accrued and unpaid interest (including contingent interest and additional interest, if any) to, but excluding, the option repurchase date. As of March 1, 2015, the Company may call all or part of the Convertible Notes at a redemption price equal to 100% of the principal amount of the Convertible Notes to be redeemed, plus accrued and unpaid interest to, but excluding, the redemption date, plus a “make-whole premium” payment in cash, shares of the Company’s common stock, or combination thereof, at the Company’s option, equal to the sum of the present values of the remaining scheduled payments of interest on the Convertible Notes to be redeemed through March 1, 2018 to, but excluding, the redemption date, if the last reported sale price of the Company’s common stock for 20 or more trading days in a period of 30 consecutive trading days ending on the trading day prior to the date the Company provides notice of redemption exceeds 130% of the conversion price in effect on each such trading day. On or after March 1, 2018, the Company may redeem for cash all or a portion of the notes at a redemption price of 100% of the principal amount of the Convertible Notes to be redeemed, plus accrued and unpaid interest (including contingent and additional interest, if any) to, but not including, the redemption date. The Company separately accounted for the debt and equity components of the Convertible Notes to reflect the issuer’s non-convertible debt borrowing rate, which interest costs are to be recognized in subsequent periods. The note payable principal balance at the date of issuance of $85 million was bifurcated into a debt component of $60.5 million and an equity component of $24.5 million. The difference between the note payable principal balance and the value of the debt component is being accreted to interest expense over the term of the notes. The debt component was recognized at the present value of associated cash flows discounted using a 8.25% discount rate, the borrowing rate at the date of issuance for a similar debt instrument without a conversion feature. The Company paid approximately $3.7 million of issuance costs associated with the Convertible Notes. The Company recorded $1.0 million of debt issuance costs as an offset to additional paid-in capital. The balance of $2.7 million of debt issuance costs is classified as other non-current assets and will be amortized over the term of the notes using the effective interest method. Because the last reported sale price of the Company's common stock did not exceed 130% of the current conversion price, which was $25.70, for at least 20 of the last 30 consecutive trading days in the fiscal quarter ended September 30, 2016, the Convertible Notes are not convertible at the election of the holders of the Convertible Notes at any time during the fiscal quarter ending December 31, 2016. The future convertibility will be monitored at each quarterly reporting date and will be analyzed dependent upon market prices of the Company’s common stock during the prescribed measurement periods. The carrying amount of the principal amount of the liability component, the unamortized discount, and the net carrying amount are as follows. Year to Date Ended September 30, 2016 December 31, 2015 Principal amount of debt $ 85,000 $ 85,000 Unamortized discount 6,092 9,062 Carrying value of debt $ 78,908 $ 75,938 Interest expense associated with the Convertible Notes consists of the following components. Quarter Ended September 30, 2016 September 30, 2015 Contractual coupon rate of interest $ 584 $ 586 Accretion of Convertible Notes discount and amortization of deferred financing costs 1,097 840 Interest expense for the convertible notes $ 1,681 $ 1,426 Year to Date Ended September 30, 2016 September 30, 2015 Contractual coupon rate of interest $ 1,753 $ 1,753 Accretion of Convertible Notes discount and amortization of deferred financing costs 3,237 2,740 Interest expense for the convertible notes $ 4,990 $ 4,493 The effective interest yield of the Convertible Notes due in 2031 is 8.5% at September 30, 2016 and the cash coupon interest rate is 2.75%. Mortgages Heidelberg Germany During 2015, a foreign subsidiary of the Company entered into a mortgage with a bank for €1.5 million, or $1.7 million, secured by its facility in Heidelberg, Germany to replace its previously existing mortgage. The mortgage has an interest rate of 1.79%, which is payable in monthly installments through August 2023. The mortgage has a remaining principal balance of € 1.3 million, or $1.5 million, at September 30, 2016. Esslingen Germany During 2015, a foreign subsidiary of the Company entered into a mortgage with a bank for €6.0 million, or $6.8 million, secured by its facility in Esslingen, Germany. The mortgage has an interest rate of 2.5% per year, which is payable in annual interest payments of €0.1 million, or $0.1 million, to be paid in monthly installments. The mortgage has a remaining principal balance of €6.0 million, or $6.7 million, at September 30, 2016. The principal portion of the mortgage will be due in a lump-sum payment in May 2019. During the quarter ended March 31, 2016, a foreign subsidiary of the Company entered in to a loan with a bank to equip its facility in Zlate Moravce, Slovakia. As of September 30, 2016, the total available to borrow was €3.0 million, or $3.4 million, and is guaranteed by land security at its parent company facility in Esslingen, Germany. The loan is due in installments from 2016 through 2020, with an interest rate of 1.95%. Angers France During 2015, a foreign subsidiary of the Company entered into a mortgage with a bank for €2.0 million, or $2.2 million, secured by its facility in in Angers, France. The mortgage has an interest rate of 1.85% per year which is payable in monthly installments from June 2016 until May 2025. The mortgage has a balance of €2.0 million, or $2.2 million, at September 30, 2016. Capital Leases The Company leases certain equipment under capital lease arrangements, whose obligations are included in both short-term and long-term debt. Capital lease obligations amounted to approximately $0.4 million at September 30, 2016 and approximately $0.5 million at December 31, 2015. Assets subject to capital leases are included in property, plant and equipment with the related amortization recorded as depreciation expense. Overdraft Agreements Certain of our foreign subsidiaries maintain overdraft agreements with financial institutions. There were no borrowings as of September 30, 2016 or December 31, 2015 under any of the overdraft agreements.

Stockholders' Equity

Stockholders' Equity	9 Months Ended
	Sep. 30, 2016
Stockholders Equity Note [Abstract]
Stockholders' Equity	11. Stockholders’ Equity Stock-Based Compensation The Company’s 2004 Equity Incentive Plan (the “2004 Plan”) permitted the grant of various forms of stock based compensation to our officers and senior level employees. The 2004 Plan expired in 2014 and, upon expiration, there were 750,576 shares subject to outstanding awards under the 2004 Plan. The 2014 Omnibus Incentive Plan (the “2014 Plan”) was approved by the Company’s shareholders at its 2014 annual meeting. The 2014 Plan provides for various forms of stock based compensation to our directors, executive personnel and other key employees and consultants. Under the 2014 Plan, the total number of shares of common stock available for delivery pursuant to the grant of awards (“Awards”) was originally 750,000. Shares of our common stock subject to Awards awarded under the 2004 Plan and outstanding as of the effective date of the 2014 Plan (except for substitute awards) that terminate without being exercised, expire, are forfeited or canceled, are exchanged for Awards that did not involve shares of common stock, are not issued on the stock settlement of a stock appreciation right, are withheld by the Company or tendered by a participant (either actually or by attestation) to pay an option exercise price or to pay the withholding tax on any Award, or are settled in cash in lieu of shares will again be available for Awards under the 2014 Plan. The restricted shares issued pursuant to the 2014 Plan generally vest ratably over a period ranging from immediately to five years from the date of grant, provided, that the vesting of the restricted shares may accelerate upon the occurrence of certain events. Common stock awarded under the 2014 Plan is generally subject to restrictions on transfer, repurchase rights, and other limitations and rights as set forth in the applicable award agreements. The shares are valued based on the share price on the date of grant. The 2014 Plan permits the Company to grant, among other things, restricted stock, restricted stock units, and performance share awards to key employees and other persons who make significant contributions to the success of the Company. The restrictions and vesting schedule for restricted stock granted under the 2014 Plan are determined by the Personnel and Compensation Committee of the Board of Directors. Stock-based compensation expense recorded during the year-to-date periods ended September 30, 2016 and September 30, 2015, was $3.4 million and $3.2 million, respectively. The Company recognizes stock-based compensation expense on a straight-line basis for the shares vesting ratably under the plan and uses the graded-vesting method of recognizing stock-based compensation expense for the performance share awards based on the probability of the specific performance metrics being achieved over the requisite service period. The following table sets forth the activity of the Company’s restricted stock and performance share grants in the year to date period ended September 30, 2016: Shares Weighted-average grant date fair value Shares unvested January 1, 2016 161,010 $ 28.62 Shares granted 170,926 22.84 Shares for which restrictions lapsed (131,002 ) 27.90 Shares unvested September 30, 2016 200,934 $ 24.67 Total remaining unrecognized compensation cost was $4.9 million as of September 30, 2016, which will be recognized over a weighted average remaining period of 3 years. The fair market value of the shares for which the restrictions have lapsed during the year to date period ended September 30, 2016 was $3.7 million. Restricted shares granted are valued based on the fair market value of the stock on the date of grant. Share Repurchase Program In May 2014, our board of directors approved a share repurchase program authorizing the buyback of up to $50.0 million of the Company’s common stock. Under the program, the Company may purchase shares on the open market, through block trades, in privately negotiated transactions, in compliance with SEC Rule 10b-18 (including through Rule 10b5-1 plans), or in any other appropriate manner. The timing of the shares repurchased will be at the discretion of management and will depend on a number of factors, including price, market conditions and regulatory requirements. Shares acquired through the repurchase program will be retired. The Company retains the right to limit, terminate or extend the share repurchase program at any time without prior notice. For the quarter ended September 30, 2016, the Company repurchased 5,461 shares of common stock at an average purchase price of $27.45 per share. As of September 30, 2016, up to $10.5 million was available to purchase additional shares under the repurchase program, which was scheduled to expire on December 31, 2016. On October 19, 2016, our board of directors approved a new share repurchase program authorizing the buyback of up to $30.0 million of the Company's common stock through December 31, 2019. This plan replaces the previous share repurchase program that was initiated in May 2014 and has now been terminated. The Company expects to purchase shares on the open market, through block trades, in privately negotiated transactions, in compliance with SEC Rule 10b-18 (including through Rule 10b5-1 plans), or in any other appropriate manner. The timing of the shares repurchased will be at the discretion of management and will depend on a number of factors, including price, market conditions and regulatory requirements. Shares acquired through the repurchase program will be held as treasury shares and may be used for general corporate purposes. The Company retains the right to limit, terminate or extend the share repurchase program at any time without prior notice. Dividends The Company declared a dividend of $0.15 per share of common stock related to the quarter ended September 30, 2016. The dividend for the quarter ended September 30, 2016 was accrued in the balance sheet at September 30, 2016. Future declarations of quarterly cash dividends are subject to approval by the Board of Directors and to the Board’s continuing determination that the declaration of dividends are in the best interest of the Company’s stockholders and are in compliance with all laws and agreements of the Company applicable to the declaration and payment of cash dividends.

Restructuring, Asset Impairment

Restructuring, Asset Impairment, and Transition Expenses	9 Months Ended
	Sep. 30, 2016
Restructuring And Related Activities [Abstract]
Restructuring, Asset Impairment, and Transition Expenses	12. Restructuring, Asset Impairment, and Transition Expenses From time to time, the Company has initiated various restructuring programs and incurred severance and other restructuring costs. In the quarter ended March 31, 2015, the Company commenced a restructuring plan (“2015 Altra Plan”) as a result of weak demand in Europe and to make certain adjustments to improve business effectiveness, reduce the number of facilities and streamline the Company's cost structure. The actions taken pursuant to the 2015 Altra Plan included reducing headcount, facility consolidations and related asset impairments, and limiting discretionary spending to improve profitability. The following table details restructuring charges incurred by segment for the periods presented. Quarter Ended Year to Date Period Ended September 30, 2016 September 30, 2015 September 30, 2016 September 30, 2015 Couplings, Clutches & Brakes $ 3,022 $ 103 $ 4,425 $ 741 Electromagnetic Clutches & Brakes 169 7 1,276 1,373 Gearing 68 541 84 2,880 Corporate 138 — 806 — Total $ 3,397 $ 651 $ 6,591 $ 4,994 The amounts for the year to date period ended September 30, 2016 are comprised of approximately $2.0 million in severance, $0.7 million in consolidation costs, $2.4 million in moving and relocation costs, $0.7 million in building impairments, and $0.8 million in travel-related and other restructuring costs. The amounts for the year to date period ended September 30, 2015 were limited to severance costs related to staff reductions, moving costs and plant closures and are classified in the accompanying unaudited condensed consolidated statement of income as restructuring costs. The following is a reconciliation of the accrued restructuring costs between January 1, 2016 and September 30, 2016: All Plans Balance at January 1, 2016 $ 2,211 Restructuring expense incurred 6,591 Non-cash loss on impairment of fixed assets (706 ) Cash payments (6,206 ) Balance at September 30, 2016 $ 1,890 The total restructuring reserve as of September 30, 2016 relates to severance costs to be paid to employees and is recorded in accruals and other current liabilities on the accompanying unaudited condensed consolidated balance sheet which are expected to be paid during 2016. The Company expects to incur between approximately $7.0 - $9.0 million in additional restructuring expenses between 2016 and 2018 under the 2015 Altra Plan, primarily in the Couplings, Clutches & Brakes and Gearing business segments.

Segments, Concentrations and Ge

Segments, Concentrations and Geographic Information	9 Months Ended
	Sep. 30, 2016
Segment Reporting [Abstract]
Segments, Concentrations and Geographic Information	13. Segments, Concentrations and Geographic Information Segments The Company currently operates through three business segments that are aligned with key product types and end markets served: • Couplings, Clutches & Brakes. Couplings are the interface between two shafts, which enable power to be transmitted from one shaft to the other. Clutches in this segment are devices which use mechanical, hydraulic, pneumatic, or friction type connections to facilitate engaging or disengaging two rotating members. Brakes are combinations of interacting parts that work to slow or stop machinery. Products in this segment are generally used in heavy industrial applications and energy markets. • Electromagnetic Clutches & Brakes. Products in this segment include brakes and clutches that are used to electronically slow, stop, engage or disengage equipment utilizing electromagnetic friction type connections. Products in this segment are used in industrial and commercial markets including agricultural machinery, material handling, motion control, and turf & garden. • Gearing. Gears are utilized to reduce the speed and increase the torque of an electric motor or engine to the level required to drive a particular piece of equipment. Gears produced by the Company are primarily utilized in industrial applications. The segment information presented below for the prior periods has been reclassified to conform to the new presentation. Segment financial information and a reconciliation of segment results to consolidated results follows: Quarters Ended September 30, Year to date periods Ended September 30, 2016 2015 2016 2015 Net Sales: Couplings, Clutches & Brakes $ 77,446 $ 85,760 $ 231,225 $ 265,225 Electromagnetic Clutches & Brakes 50,680 50,393 165,083 166,279 Gearing 47,023 48,783 145,038 147,599 Inter-segment eliminations (2,017 ) (1,883 ) (5,087 ) (6,079 ) Net sales $ 173,132 $ 183,053 $ 536,259 $ 573,024 Income from operations: Segment earnings: Couplings, Clutches & Brakes $ 6,596 $ 8,910 $ 20,441 $ 29,672 Electromagnetic Clutches & Brakes 6,589 4,771 20,120 16,293 Gearing 5,650 6,197 17,280 17,022 Restructuring (3,397 ) (651 ) (6,591 ) (4,994 ) Corporate expenses (1) (5,069 ) (2,567 ) (9,729 ) (7,967 ) Income from operations $ 10,369 $ 16,660 $ 41,521 $ 50,026 Other non-operating (income) expense: Net interest expense $ 2,815 $ 2,924 $ 8,615 $ 8,858 Other non-operating expense (income), net 45 685 (438 ) 606 2,860 3,609 8,177 9,464 Income before income taxes 7,509 13,051 33,344 40,562 Provision for income taxes 2,196 2,830 9,872 11,326 Net income $ 5,313 $ 10,221 $ 23,472 $ 29,236 (1) Certain expenses are maintained at the corporate level and not allocated to the segments. These include various administrative expenses related to corporate headquarters, depreciation on capitalized software costs, non-capitalizable software implementation costs and acquisition related expenses. Selected information by segment (continued) Quarter Ended Year to Date Period Ended September 30, 2016 September 30, 2015 September 30, 2016 September 30, 2015 Depreciation and amortization: Couplings, Clutches & Brakes $ 4,028 $ 3,926 $ 11,485 $ 11,922 Electromagnetic Clutches & Brakes 1,176 1,195 3,501 3,481 Gearing 1,862 1,613 5,261 4,970 Corporate 791 803 2,372 2,296 Total depreciation and amortization $ 7,857 $ 7,537 $ 22,619 $ 22,669 September 30, 2016 December 31, 2015 Total assets: Couplings, Clutches & Brakes $ 329,621 $ 312,117 Electromagnetic Clutches & Brakes 129,576 125,887 Gearing 133,483 150,860 Corporate (2) 27,778 43,468 Total assets $ 620,458 $ 632,332 (2) Corporate assets are primarily cash and cash equivalents, tax related asset accounts, certain capitalized software costs, property, plant and equipment and deferred financing costs. Net sales to third parties by geographic region are as follows: Net Sales Quarter Ended Year to Date Period Ended September 30, 2016 September 30, 2015 September 30, 2016 September 30, 2015 North America (primarily U.S.) $ 99,995 $ 108,959 $ 316,957 $ 350,753 Europe 54,344 52,757 165,694 164,829 Asia and other 18,793 21,337 53,608 57,442 Total $ 173,132 $ 183,053 $ 536,259 $ 573,024 Net sales to third parties are attributed to the geographic regions based on the country in which the shipment originates. Concentrations Financial instruments, which are potentially subject to counter party performance and concentrations of credit risk, consist primarily of trade accounts receivable. The Company manages these risks by conducting credit evaluations of customers prior to delivery or commencement of services. When the Company enters into a sales contract, collateral is normally not required from the customer. Payments are typically due within 30 days of billing. An allowance for potential credit losses is maintained, and losses have historically been within management’s expectations. While the Company did not have any customers that represented total sales greater than 10% for each of the quarters ended September 30, 2016 and 2015, the Gearing business had one customer that approximated 10% of total sales for that segment during the quarter ended September 30, 2015. The Company is also subject to counter party performance risk of loss in the event of non-performance by counterparties to financial instruments, such as cash and investments. Cash and cash equivalents are held by well-established financial institutions and invested in AAA rated mutual funds. The Company is exposed to swap counterparty credit risk with well-established financial institutions.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2016
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	14. Commitments and Contingencies General Litigation The Company is involved in various pending legal proceedings arising out of the ordinary course of business. These proceedings primarily involve commercial claims, product liability claims, personal injury claims, and workers’ compensation claims. None of these legal proceedings are expected to have a material adverse effect on the results of operations, cash flows, or financial condition of the Company. Wi th respect to these proceedings, management believes that the Company will prevail, has adequate insurance coverage or has established appropriate reserves to cover potential liabilities. Any costs that management estimates may be paid related to these proceedings or claims are accrued when the liability is considered probable and the amount can be reasonably estimated. There can be no assurance, however, as to the ultimate outcome of any of these matters, and if all or substantially all of these legal proceedings were to be determined adversely to the Company, there could be a material adverse effect on the results of operations, cash flows, or financial condition of the Company. We have established loss provisions for matters in which losses are probable and can be reasonably estimated. There were no material amounts accrued in the accompanying unaudited condensed consolidated balance sheet for potential litigation as of September 30, 2016 or December 31, 2015. For matters where a reserve has not been established and for which we believe a loss is reasonably possible, as well as for matters where a reserve has been recorded but for which an exposure to loss in excess of the amount accrued is reasonably possible, we believe that such losses, individually and in the aggregate, will not have a material effect on our unaudited condensed consolidated financial statements. The Company also risks exposure to product liability claims in connection with products it has sold and those sold by businesses that the Company acquired. Although in some cases third parties have retained responsibility for product liability claims relating to products manufactured or sold prior to the acquisition of the relevant business and in other cases the persons from whom the Company has acquired a business may be required to indemnify the Company for certain product liability claims subject to certain caps or limitations on indemnification, the Company cannot assure that those third parties will in fact satisfy their obligations with respect to liabilities retained by them or their indemnification obligations. If those third parties become unable to or otherwise do not comply with their respective obligations including indemnity obligations, or if certain product liability claims for which the Company is obligated were not retained by third parties or are not subject to these indemnities, the Company could become subject to significant liabilities or other adverse consequences. Moreover, even in cases where third parties retain responsibility for product liability claims or are required to indemnify the Company, significant claims arising from products that have been acquired could have a material adverse effect on the Company’s ability to realize the benefits from an acquisition, could result in the reduction of the value of goodwill that the Company recorded in connection with an acquisition, or could otherwise have a material adverse effect on the Company’s business, financial condition, or operations.

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2016
Subsequent Events [Abstract]
Subsequent Events	15. Subsequent Events Dividend On October 19, 2016, the Company declared a dividend of $0.15 per share for the quarter ended December 31, 2016, payable on January 4, 2017 to shareholders of record as of December 19, 2016. Share Repurchase Program On October 19, 2016, our board of directors approved a new share repurchase program authorizing the buyback of up to $30.0 million of the Company's common stock through December 31, 2019. This plan replaces the previous share repurchase program that was initiated in May 2014 and has now been terminated. The Company expects to purchase shares on the open market, through block trades, in privately negotiated transactions, in compliance with SEC Rule 10b-18 (including through Rule 10b5-1 plans), or in any other appropriate manner. The timing of the shares repurchased will be at the discretion of management and will depend on a number of factors, including price, market conditions and regulatory requirements. Shares acquired through the repurchase program will be held as treasury shares and may be used for general corporate purposes. The Company retains the right to limit, terminate or extend the share repurchase program at any time without prior notice. The Company expects to fund any repurchases of its common stock through a combination of cash on hand and cash generated by operations. Stromag Acquisition On October 21, 2016, the Company entered into a binding agreement (the “French Agreement”) with GKN Industries, Limited (“GKN”). Under the French Agreement, GKN has agreed to promptly commence the employee consultation process required under applicable law to obtain opinions of the Stromag works councils in France. Subject to the conditions set forth in the French Agreement, the parties to the French Agreement will execute and deliver the Agreed Form Sale and Purchase Agreement within two business days following the satisfaction of the employee consultation process requirements. The French Agreement and the Agreed Form Sale and Purchase Agreement contain representations, warranties, and covenants that we believe are customary for a transaction of this size and type, as well as indemnification provisions subject to specified limitations. The closing of the transaction is subject to several customary closing conditions, including receipt of required regulatory approvals, as well as the aforementioned consultation process with the Stromag works councils, and is expected to take place during the first quarter of 2017. No assurances can be given that the Stromag Acquisition will be timely consummated or consummated at all. The foregoing summary of the French Agreement and the transactions contemplated thereby is not intended to be complete and is qualified in its entirety by reference to the actual French Agreement, which will be filed as an exhibit to the Company’s Annual Report on Form 10-K for its fiscal year ending December 31, 2016. Amended and Restated Credit Agreement On October 21, 2016, the Company entered into a First Amendment to the Second Amended and Restated Credit Agreement (the “First Amendment”) by and among the Company and Altra Industrial Motion Netherlands, B.V. (“Altra B.V.”), one of the Company’s foreign subsidiaries (collectively, the “Borrowers”), the Subsidiary Guarantors to the First Amendment, JPMorgan Chase Bank, N.A., as Administrative Agent, as Joint Lead Arranger and Joint Bookrunner, Wells Fargo Bank, N.A., as Joint Lead Arranger and Joint Bookrunner, KeyBank National Association, as Joint Lead Arranger and Joint Bookrunner, and certain lender parties to the First Amendment (collectively, the “Lenders”). The First Amendment would amend the Company’s Second Amended and Restated Credit Agreement, dated as of October 22, 2015 (the “Credit Agreement”). However, the amendments to the Credit Agreement contained in the First Amendment will not be effective and will not amend the Credit Agreement unless and until certain conditions precedent have been met, including that the Company has provided the Administrative Agent with written notice that the conditions precedent to the closing of the Stromag Acquisition have been satisfied. In the event that the Stromag Acquisition does not occur, or if the other conditions precedent are not satisfied or waived, then the First Amendment shall not become effective. If it becomes effective, the First Amendment, would increase the revolving credit facility under the Credit Agreement by $75,000,000 (the “Revolver Increase”), so that after giving effect to the Revolver Increase, the aggregate revolving commitments would total $425,000,000. The First Amendment would also reset the possible expansion of additional future loan commitments to $150,000,000. In addition, the First Amendment would increase the multicurrency sublimit to $250 million and adjust certain financial covenants. The Company expects to use the increased facility to finance the Stromag Acquisition. Except as otherwise expressly provided by the First Amendment, all of the respective terms, conditions and provisions of the Credit Agreement and the other loan documents remain the same. The foregoing summary of the First Amendment and the transactions contemplated thereby is not intended to be complete and is qualified in its entirety by reference to the actual First Amendment, which will be filed as an exhibit to the Company’s Annual Report on Form 10-K for its fiscal year ending December 31, 2016.

Basis of Presentation (Policies

Basis of Presentation (Policies)	9 Months Ended
	Sep. 30, 2016
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The Company’s unaudited condensed consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and do not include all of the information and note disclosures required by accounting principles generally accepted in the United States of America. These statements should be read in conjunction with the financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015. In the opinion of management, the accompanying unaudited condensed consolidated financial statements include all adjustments, consisting of normal recurring adjustments, necessary to present fairly the Company’s financial position for the interim periods presented, and cash flows for the interim periods presented. The results are not necessarily indicative of future results. The Company considers events or transactions that occur after the balance sheet date but before the financial statements are issued to provide additional evidence relative to certain estimates or to identify matters that require additional disclosure.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In August 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2016-15, Statement of Cash Flows (Topic 230): Classification of certain cash receipts and cash payments (a consensus of the emerging issues task force) In June 2016, the FASB issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments In March 2016, the FASB issued ASU 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting In February 2015, the FASB issued ASU 2016-02, Leases (Topic 842) In May 2014, the FASB issued ASU No. 2014-09 Revenue from Contracts with Customers
Fair Value of Financial Instruments	Fair Value of Financial Instruments Fair value is determined based upon the exit price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants, as determined by either the principal market or the most advantageous market. Inputs used in the valuation techniques to derive fair values are classified based on a three-level hierarchy, as follows: • Level 1- Quoted prices in active markets for identical assets or liabilities. • Level 2- Observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets with insufficient volume or infrequent transactions (less active markets); or model-derived • Level 3- Unobservable inputs to the valuation methodology that are significant to the measurement of fair value of assets or liabilities. The Company considers all highly liquid investments purchased with a remaining maturity of three months or less to be cash equivalents. The carrying values of financial instruments, including accounts receivable, cash equivalents, accounts payable, and other accrued liabilities approximate fair value. Debt under the Company’s 2015 Credit Agreement approximates the fair value due to the variable rate nature at current market rates.
Net Income per Share	Net Income per Share Basic earnings per share is based on the weighted average number of shares of common stock outstanding, and diluted earnings per share is based on the weighted average number of shares of common stock outstanding and all potentially dilutive common stock equivalents outstanding. Common stock equivalents are included in the per share calculations when the effect of their inclusion is dilutive.
Warranty Costs	Warranty Costs The contractual warranty period of the Company's products generally ranges from three months to two years with certain warranties extending for longer periods. Estimated expenses related to product warranties are accrued at the time products are sold to customers and are recorded in accruals and other current liabilities on the unaudited condensed consolidated balance sheet. Estimates are established using historical information as to the nature, frequency and average costs of warranty claims.

Changes in Accumulated Other 24

Changes in Accumulated Other Comprehensive Loss by Component (Tables)	9 Months Ended
	Sep. 30, 2016
Equity [Abstract]
Changes in Accumulated Other Comprehensive Income (Loss) by Component	The following is a reconciliation of changes in accumulated other comprehensive loss by component for the periods presented: Gains and Losses on Cash Flow Hedges Defined Benefit Pension Plans Cumulative Foreign Currency Translation Adjustment Total Accumulated Other Comprehensive Loss by Component, January 1, 2016 $ (140 ) $ (5,807 ) $ (57,885 ) $ (63,832 ) Net current-period Other Comprehensive Income (Loss) — 134 (1,000 ) (866 ) Accumulated Other Comprehensive Loss by Component, September 30, 2016 $ (140 ) $ (5,673 ) $ (58,885 ) $ (64,698 ) Gains and Losses on Cash Flow Hedges Defined Benefit Pension Plans Cumulative Foreign Currency Translation Adjustment Total Accumulated Other Comprehensive Income (Loss) by Component, January 1, 2015 $ 143 $ (4,818 ) $ (36,740 ) $ (41,415 ) Cumulative losses transferred from Lamiflex — — (410 ) (410 ) Net current-period Other Comprehensive Loss (283 ) — (16,242 ) (16,525 ) Accumulated Other Comprehensive Loss by Component, September 30, 2015 $ (140 ) $ (4,818 ) $ (53,392 ) $ (58,350 )

Net Income per Share (Tables)

Net Income per Share (Tables)	9 Months Ended
	Sep. 30, 2016
Earnings Per Share [Abstract]
Reconciliation of Basic to Diluted Net Income per Share	The following is a reconciliation of basic to diluted net income per share: Quarter Ended Year to Date Ended September 30, 2016 September 30, 2015 September 30, 2016 September 30, 2015 Net income attributable to Altra Industrial Motion Corp. $ 5,313 $ 10,221 $ 23,472 $ 29,299 Shares used in net income per common share - basic 25,726 26,145 25,684 26,140 Dilutive effect of the equity premium on Convertible Notes at the average price of common stock 295 - 123 38 Incremental shares of unvested restricted common stock - - 6 6 Shares used in net income per common share - diluted 26,021 26,145 25,813 26,184 Earnings per share: Basic net income attributable to Altra Industrial Motion Corp. $ 0.21 $ 0.39 $ 0.91 $ 1.12 Diluted net income attributable to Altra Industrial Motion Corp. $ 0.20 $ 0.39 $ 0.91 $ 1.12

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Sep. 30, 2016
Inventory Disclosure [Abstract]
Summary of Inventories	Inventories at September 30, 2016 and December 31, 2015 consisted of the following: September 30, 2016 December 31, 2015 Raw materials $ 35,758 $ 34,169 Work in process 11,915 12,864 Finished goods 73,770 74,123 $ 121,443 $ 121,156

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Changes in Goodwill	Changes in goodwill from January 1, through September 30, 2016 were as follows: Couplings, Clutches & Brakes Electromagnetic Clutches & Brakes Gearing Total Net goodwill balance January 1, 2016 $ 25,290 $ 24,661 $ 47,358 $ 97,309 Impact of changes in foreign currency and other 136 29 301 466 Net goodwill balance September 30, 2016 $ 25,426 $ 24,690 $ 47,659 $ 97,775
Schedule of Definite-Lived Intangible Assets	Other intangible assets as of September 30, 2016 and December 31, 2015 consisted of the following: September 30, 2016 December 31, 2015 Cost Accumulated Amortization Net Cost Accumulated Amortization Net Other intangible assets Intangible assets not subject to amortization: Tradenames and trademarks $ 39,305 $ — $ 39,305 $ 39,625 $ — $ 39,625 Intangible assets subject to amortization: Customer relationships 113,309 62,744 $ 50,565 112,408 56,677 55,731 Product technology and patents 6,111 5,473 $ 638 6,049 5,336 713 Total intangible assets $ 158,725 $ 68,217 $ 90,508 $ 158,082 $ 62,013 $ 96,069
Schedule of Indefinite-Lived Intangible Assets	Other intangible assets as of September 30, 2016 and December 31, 2015 consisted of the following: September 30, 2016 December 31, 2015 Cost Accumulated Amortization Net Cost Accumulated Amortization Net Other intangible assets Intangible assets not subject to amortization: Tradenames and trademarks $ 39,305 $ — $ 39,305 $ 39,625 $ — $ 39,625 Intangible assets subject to amortization: Customer relationships 113,309 62,744 $ 50,565 112,408 56,677 55,731 Product technology and patents 6,111 5,473 $ 638 6,049 5,336 713 Total intangible assets $ 158,725 $ 68,217 $ 90,508 $ 158,082 $ 62,013 $ 96,069

Warranty Costs (Tables)

Warranty Costs (Tables)	9 Months Ended
	Sep. 30, 2016
Guarantees [Abstract]
Changes in Carrying Amount of Accrued Product Warranty Costs	Changes in the carrying amount of accrued product warranty costs for each of the year-to-date periods ended September 30, 2016 and September 30, 2015 are as follows: September 30, 2016 September 30, 2015 Balance at beginning of period $ 9,468 $ 7,792 Accrued current period warranty expense 1,732 3,641 Payments and adjustments (2,700 ) (1,760 ) Balance at end of period $ 8,500 $ 9,673

Debt (Tables)

Debt (Tables)	9 Months Ended
	Sep. 30, 2016
Debt Disclosure [Abstract]
Outstanding Debt Obligations	Outstanding debt obligations at September 30, 2016 and December 31, 2015 were as follows. September 30, 2016 December 31, 2015 Debt: Revolving Credit Facility $ 117,509 $ 145,152 Convertible Notes 85,000 85,000 Mortgages 13,339 10,333 Equipment and working capital notes — 2,832 Capital leases 398 500 Total debt 216,246 243,817 Less: debt discount, net of accretion (6,092 ) (9,062 ) Total debt, net of unaccreted discount $ 210,154 $ 234,755 Less current portion of long-term debt (400 ) (3,187 ) Total long-term debt, net of unaccreted discount $ 209,754 $ 231,568
Carrying Amount of Debt	The carrying amount of the principal amount of the liability component, the unamortized discount, and the net carrying amount are as follows. Year to Date Ended September 30, 2016 December 31, 2015 Principal amount of debt $ 85,000 $ 85,000 Unamortized discount 6,092 9,062 Carrying value of debt $ 78,908 $ 75,938
Interest Expense Associated with Convertible Notes	Interest expense associated with the Convertible Notes consists of the following components. Quarter Ended September 30, 2016 September 30, 2015 Contractual coupon rate of interest $ 584 $ 586 Accretion of Convertible Notes discount and amortization of deferred financing costs 1,097 840 Interest expense for the convertible notes $ 1,681 $ 1,426 Year to Date Ended September 30, 2016 September 30, 2015 Contractual coupon rate of interest $ 1,753 $ 1,753 Accretion of Convertible Notes discount and amortization of deferred financing costs 3,237 2,740 Interest expense for the convertible notes $ 4,990 $ 4,493

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	9 Months Ended
	Sep. 30, 2016
Stockholders Equity Note [Abstract]
Company's Restricted Stock Grants	The following table sets forth the activity of the Company’s restricted stock and performance share grants in the year to date period ended September 30, 2016: Shares Weighted-average grant date fair value Shares unvested January 1, 2016 161,010 $ 28.62 Shares granted 170,926 22.84 Shares for which restrictions lapsed (131,002 ) 27.90 Shares unvested September 30, 2016 200,934 $ 24.67

Restructuring, Asset Impairme31

Restructuring, Asset Impairment, and Transition Expenses (Tables)	9 Months Ended
	Sep. 30, 2016
Restructuring And Related Activities [Abstract]
Summary of Total Restructuring Expense	The following table details restructuring charges incurred by segment for the periods presented. Quarter Ended Year to Date Period Ended September 30, 2016 September 30, 2015 September 30, 2016 September 30, 2015 Couplings, Clutches & Brakes $ 3,022 $ 103 $ 4,425 $ 741 Electromagnetic Clutches & Brakes 169 7 1,276 1,373 Gearing 68 541 84 2,880 Corporate 138 — 806 — Total $ 3,397 $ 651 $ 6,591 $ 4,994
Reconciliation of Accrued Restructuring Costs	The following is a reconciliation of the accrued restructuring costs between January 1, 2016 and September 30, 2016: All Plans Balance at January 1, 2016 $ 2,211 Restructuring expense incurred 6,591 Non-cash loss on impairment of fixed assets (706 ) Cash payments (6,206 ) Balance at September 30, 2016 $ 1,890

Segments, Concentrations and 32

Segments, Concentrations and Geographic Information (Tables)	9 Months Ended
	Sep. 30, 2016
Segment Reporting [Abstract]
Reconciliation of Revenue from Segments to Consolidated	Segment financial information and a reconciliation of segment results to consolidated results follows: Quarters Ended September 30, Year to date periods Ended September 30, 2016 2015 2016 2015 Net Sales: Couplings, Clutches & Brakes $ 77,446 $ 85,760 $ 231,225 $ 265,225 Electromagnetic Clutches & Brakes 50,680 50,393 165,083 166,279 Gearing 47,023 48,783 145,038 147,599 Inter-segment eliminations (2,017 ) (1,883 ) (5,087 ) (6,079 ) Net sales $ 173,132 $ 183,053 $ 536,259 $ 573,024 Income from operations: Segment earnings: Couplings, Clutches & Brakes $ 6,596 $ 8,910 $ 20,441 $ 29,672 Electromagnetic Clutches & Brakes 6,589 4,771 20,120 16,293 Gearing 5,650 6,197 17,280 17,022 Restructuring (3,397 ) (651 ) (6,591 ) (4,994 ) Corporate expenses (1) (5,069 ) (2,567 ) (9,729 ) (7,967 ) Income from operations $ 10,369 $ 16,660 $ 41,521 $ 50,026 Other non-operating (income) expense: Net interest expense $ 2,815 $ 2,924 $ 8,615 $ 8,858 Other non-operating expense (income), net 45 685 (438 ) 606 2,860 3,609 8,177 9,464 Income before income taxes 7,509 13,051 33,344 40,562 Provision for income taxes 2,196 2,830 9,872 11,326 Net income $ 5,313 $ 10,221 $ 23,472 $ 29,236 (1) Certain expenses are maintained at the corporate level and not allocated to the segments. These include various administrative expenses related to corporate headquarters, depreciation on capitalized software costs, non-capitalizable software implementation costs and acquisition related expenses.
Reconciliation of Assets from Segment to Consolidated	Selected information by segment (continued) Quarter Ended Year to Date Period Ended September 30, 2016 September 30, 2015 September 30, 2016 September 30, 2015 Depreciation and amortization: Couplings, Clutches & Brakes $ 4,028 $ 3,926 $ 11,485 $ 11,922 Electromagnetic Clutches & Brakes 1,176 1,195 3,501 3,481 Gearing 1,862 1,613 5,261 4,970 Corporate 791 803 2,372 2,296 Total depreciation and amortization $ 7,857 $ 7,537 $ 22,619 $ 22,669 September 30, 2016 December 31, 2015 Total assets: Couplings, Clutches & Brakes $ 329,621 $ 312,117 Electromagnetic Clutches & Brakes 129,576 125,887 Gearing 133,483 150,860 Corporate (2) 27,778 43,468 Total assets $ 620,458 $ 632,332 (1) Corporate assets are primarily cash and cash equivalents, tax related asset accounts, certain capitalized software costs, property, plant and equipment and deferred financing costs.
Revenue from External Customers by Geographic Areas	Net sales to third parties by geographic region are as follows: Net Sales Quarter Ended Year to Date Period Ended September 30, 2016 September 30, 2015 September 30, 2016 September 30, 2015 North America (primarily U.S.) $ 99,995 $ 108,959 $ 316,957 $ 350,753 Europe 54,344 52,757 165,694 164,829 Asia and other 18,793 21,337 53,608 57,442 Total $ 173,132 $ 183,053 $ 536,259 $ 573,024

Organization and Nature of Op33

Organization and Nature of Operations - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2016productcountry
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Number of product lines (more than) | product	42
Number of countries in which the company has production facilities | country	12

Fair Value of Financial Instr34

Fair Value of Financial Instruments - Additional Information (Detail) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Fair Value, Inputs, Level 1 [Member] | Money Market Funds [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 0.3	$ 0.3
Convertible Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate on notes (as a percent)	2.75%	2.75%
Carrying amount of financial instruments	$ 85	$ 85
Estimated fair value of financial instruments	$ 101.6	$ 91.7

(Detail)

(Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss) by component, beginning balance			$ (63,832)	$ (41,415)
Cumulative losses transferred from Lamiflex				(410)
Net current-period Other Comprehensive Income (Loss)	$ 104	$ (4,538)	(866)	(16,525)
Accumulated other comprehensive income (loss) by component, ending balance	(64,698)	(58,350)	(64,698)	(58,350)
Gains and Losses on Cash Flow Hedges [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss) by component, beginning balance			(140)	143
Cumulative losses transferred from Lamiflex				0
Net current-period Other Comprehensive Income (Loss)			0	(283)
Accumulated other comprehensive income (loss) by component, ending balance	(140)	(140)	(140)	(140)
Defined Benefit Pension Plans [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss) by component, beginning balance			(5,807)	(4,818)
Cumulative losses transferred from Lamiflex				0
Net current-period Other Comprehensive Income (Loss)			134	0
Accumulated other comprehensive income (loss) by component, ending balance	(5,673)	(4,818)	(5,673)	(4,818)
Cumulative Foreign Currency Translation Adjustment [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss) by component, beginning balance			(57,885)	(36,740)
Cumulative losses transferred from Lamiflex				(410)
Net current-period Other Comprehensive Income (Loss)			(1,000)	(16,242)
Accumulated other comprehensive income (loss) by component, ending balance	$ (58,885)	$ (53,392)	$ (58,885)	$ (53,392)

Net Income per Share - Reconcil

Net Income per Share - Reconciliation of Basic to Diluted Net Income per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Earnings Per Share [Abstract]
Net income attributable to Altra Industrial Motion Corp.	$ 5,313	$ 10,221	$ 23,472	$ 29,299
Shares used in net income per common share - basic (in shares)	25,726	26,145	25,684	26,140
Dilutive effect of the equity premium on Convertible Notes at the average price of common stock (in shares)	295	0	123	38
Incremental shares of unvested restricted common stock (in shares)	0	0	6	6
Shares used in net income per common share - diluted (in shares)	26,021	26,145	25,813	26,184
Earnings per share:
Basic net income attributable to Altra Industrial Motion Corp. (in usd per share)	$ 0.21	$ 0.39	$ 0.91	$ 1.12
Diluted net income attributable to Altra Industrial Motion Corp. (in usd per share)	$ 0.20	$ 0.39	$ 0.91	$ 1.12

Inventories - Summary of Invent

Inventories - Summary of Inventories (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Inventory Disclosure [Abstract]
Raw materials	$ 35,758	$ 34,169
Work in process	11,915	12,864
Finished goods	73,770	74,123
Inventories, net	$ 121,443	$ 121,156

Goodwill and Intangible Asset38

Goodwill and Intangible Assets - Changes in Goodwill (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2016USD ($)
Goodwill [Roll Forward]
Net goodwill, beginning balance	$ 97,309
Impact of changes in foreign currency and other	466
Net goodwill, ending balance	97,775
Couplings, Clutches and Brakes [Member]
Goodwill [Roll Forward]
Net goodwill, beginning balance	25,290
Impact of changes in foreign currency and other	136
Net goodwill, ending balance	25,426
Electromagnetic Clutches and Brakes [Member]
Goodwill [Roll Forward]
Net goodwill, beginning balance	24,661
Impact of changes in foreign currency and other	29
Net goodwill, ending balance	24,690
Gearing [Member]
Goodwill [Roll Forward]
Net goodwill, beginning balance	47,358
Impact of changes in foreign currency and other	301
Net goodwill, ending balance	$ 47,659

Goodwill and Intangible Asset39

Goodwill and Intangible Assets - Other Intangible Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Schedule Of Finite And Indefinite Lived Intangible Assets [Line Items]
Total intangible assets, accumulated amortization	$ 68,217	$ 62,013
Total intangible assets, cost	158,725	158,082
Total intangible assets, net	90,508	96,069
Customer Relationships [Member]
Schedule Of Finite And Indefinite Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, cost	113,309	112,408
Total intangible assets, accumulated amortization	62,744	56,677
Intangible assets subject to amortization, net	50,565	55,731
Product Technology and Patents [Member]
Schedule Of Finite And Indefinite Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, cost	6,111	6,049
Total intangible assets, accumulated amortization	5,473	5,336
Intangible assets subject to amortization, net	638	713
Tradenames and Trademarks [Member]
Schedule Of Finite And Indefinite Lived Intangible Assets [Line Items]
Intangible assets not subject to amortization, cost	$ 39,305	$ 39,625

Goodwill and Intangible Asset40

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Goodwill And Intangible Assets [Line Items]
Amortization expense	$ 2,100	$ 2,100	$ 6,384	$ 6,437
Estimated Amortization Expense for Intangible Assets [Member]
Goodwill And Intangible Assets [Line Items]
Remainder 2,016	2,000		2,000
Year 2,017	8,300		8,300
Year 2,018	8,300		8,300
Year 2,019	8,300		8,300
Year 2,020	8,300		8,300
Thereafter	$ 16,100		$ 16,100

Warranty Costs - Additional Inf

Warranty Costs - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2016
Minimum [Member]
Guarantor Obligations [Line Items]
Product warranty period	3 months
Maximum [Member]
Guarantor Obligations [Line Items]
Product warranty period	2 years

Warranty Costs - Changes in Car

Warranty Costs - Changes in Carrying Amount of Accrued Product Warranty Costs (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Movement in Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross [Roll Forward]
Balance at beginning of period	$ 9,468	$ 7,792
Accrued current period warranty expense	1,732	3,641
Payments and adjustments	(2,700)	(1,760)
Balance at end of period	$ 8,500	$ 9,673

Debt - Outstanding Debt Obligat

Debt - Outstanding Debt Obligations (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Total debt	$ 216,246	$ 243,817
Less: debt discount, net of accretion	(6,092)	(9,062)
Total debt, net of unaccreted discount	210,154	234,755
Less current portion of long-term debt	(400)	(3,187)
Total long-term debt, net of unaccreted discount	209,754	231,568
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Total debt	117,509	145,152
Convertible Notes [Member]
Debt Instrument [Line Items]
Total debt	85,000	85,000
Mortgages [Member]
Debt Instrument [Line Items]
Total debt	13,339	10,333
Equipment and Working Capital Notes [Member]
Debt Instrument [Line Items]
Total debt		2,832
Capital Leases [Member]
Debt Instrument [Line Items]
Total debt	$ 398	$ 500

Debt - Additional Information (

Debt - Additional Information (Detail)	Dec. 31, 2015USD ($)	Oct. 22, 2015USD ($)	Sep. 01, 2011USD ($)	Mar. 31, 2011USD ($)d$ / sharesshares	Sep. 30, 2016USD ($)d$ / shares	Sep. 30, 2016EUR (€)d	Sep. 30, 2016EUR (€)	Dec. 31, 2015EUR (€)	Dec. 06, 2013USD ($)	Dec. 06, 2013EUR (€)
Debt Instrument [Line Items]
Borrowings under overdraft agreements	$ 0				$ 0
Line of Credit [Member] | Term Loan [Member]
Debt Instrument [Line Items]
Outstanding on revolving credit facility									$ 94,000,000
Line of Credit [Member] | Additional Term Loan [Member]
Debt Instrument [Line Items]
Availability under credit facility agreement | €										€ 50,000,000
Convertible Debt [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date				Mar. 1, 2031
Coupon interest rate			2.75%		2.75%		2.75%
Proceeds from the offering			$ 81,300,000
Adjustment of shares (in shares) | shares				36.0985
Principal amount of notes				$ 1,000
Conversion price per share (in usd per share) | $ / shares					$ 25.70
Percentage of sale price of common stock				130.00%	130.00%	130.00%
Number of trading days | d					20	20
Number of consecutive trading days				30 days	30 days	30 days
Number of business day period				5 days
Number of consecutive trading days in measurement period				10 days
Percentage of measurement period				97.00%
Percentage of convertible notes redeemable				100.00%
Convertible notes redeemable period one				Mar. 1, 2018
Convertible notes redeemable period two				Mar. 1, 2021
Convertible notes redeemable period three				Mar. 1, 2026
Conversion price redemption exceed				130.00%
Principal amount of debt	85,000,000			$ 85,000,000	$ 85,000,000
Debt component in note payable				60,500,000
Equity component in note payable				$ 24,500,000
Discount rate for debt component				8.25%
Debt issuance cost				$ 3,700,000
Adjustments to additional paid-in capital of convertible debt				1,000,000
Debt issuance cost, amortized				$ 2,700,000
Effective interest rate of Senior Secured Notes					8.50%		8.50%
Convertible Debt [Member] | Initial Conversion Price [Member]
Debt Instrument [Line Items]
Conversion price per share (in usd per share) | $ / shares				$ 27.70
Convertible Debt [Member] | Minimum [Member]
Debt Instrument [Line Items]
Number of trading days | d				20
Mortgages [Member] | Heidelberg Germany [Member]
Debt Instrument [Line Items]
Interest rate					1.79%	1.79%
New mortgage amount	1,700,000				$ 1,500,000		€ 1,300,000	€ 1,500,000
Mortgages [Member] | Esslingen Germany [Member]
Debt Instrument [Line Items]
Construction loan	6,800,000				$ 6,700,000		6,000,000	6,000,000
Mortgage interest rate					2.50%	2.50%
Monthly installments					$ 100,000	€ 100,000
Mortgages [Member] | Angers France [Member]
Debt Instrument [Line Items]
Interest rate					1.85%	1.85%
Construction loan	2,200,000				$ 2,200,000		2,000,000	€ 2,000,000
Equipment And Working Capital Notes [Member] | Zlate Moravce, Slovakia [Member]
Debt Instrument [Line Items]
Interest rate					1.95%	1.95%
Available to borrow loan amount					$ 3,400,000		€ 3,000,000
Capital Leases [Member]
Debt Instrument [Line Items]
Principal amount of debt	$ 500,000				400,000
Prior Revolving Credit Facility [Member] | Line of Credit [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Availability under credit facility agreement									$ 200,000,000
2015 Credit Agreement [Member] | Line of Credit [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Availability under credit facility agreement		$ 350,000,000
Outstanding on revolving credit facility					117,500,000
Additional expansion amount		$ 150,000,000
Amount available under credit facility					228,400,000
2015 Credit Agreement [Member] | Line of Credit [Member] | Revolving Credit Facility [Member] | Eurodollar Loan [Member]
Debt Instrument [Line Items]
Applicable margins for loans	1.50%
2015 Credit Agreement [Member] | Line of Credit [Member] | Revolving Credit Facility [Member] | Minimum [Member] | Eurodollar Loan [Member]
Debt Instrument [Line Items]
Applicable margins for loans		1.25%
2015 Credit Agreement [Member] | Line of Credit [Member] | Revolving Credit Facility [Member] | Minimum [Member] | ABR Based Loans [Member]
Debt Instrument [Line Items]
Applicable margins for loans		0.25%
2015 Credit Agreement [Member] | Line of Credit [Member] | Revolving Credit Facility [Member] | Maximum [Member] | Eurodollar Loan [Member]
Debt Instrument [Line Items]
Applicable margins for loans		2.00%
2015 Credit Agreement [Member] | Line of Credit [Member] | Revolving Credit Facility [Member] | Maximum [Member] | ABR Based Loans [Member]
Debt Instrument [Line Items]
Applicable margins for loans		1.00%
2015 Credit Agreement [Member] | Line of Credit [Member] | Letter of Credit [Member]
Debt Instrument [Line Items]
Letters of credit outstanding	$ 7,000,000				4,100,000
2015 Credit Agreement [Member] | Domestic Line of Credit [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Outstanding on revolving credit facility					$ 109,200,000
Interest rate					2.00%	2.00%
2015 Credit Agreement [Member] | Foreign Line of Credit [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Outstanding on revolving credit facility					$ 8,300,000
Interest rate					1.50%	1.50%
Term Loans [Member] | Line of Credit [Member] | Term Loan [Member]
Debt Instrument [Line Items]
Write-off of deferred financing costs		$ 500,000

Debt - Carrying Amount of Debt

Debt - Carrying Amount of Debt (Detail) - USD ($)	Sep. 30, 2016	Dec. 31, 2015	Mar. 31, 2011
Debt Instrument [Line Items]
Carrying value of debt	$ 209,754,000	$ 231,568,000
Convertible Debt [Member]
Debt Instrument [Line Items]
Principal amount of debt	85,000,000	85,000,000	$ 85,000,000
Unamortized discount	6,092,000	9,062,000
Carrying value of debt	$ 78,908,000	$ 75,938,000

Debt - Interest Expense Associa

Debt - Interest Expense Associated with Convertible Notes (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Debt Disclosure [Abstract]
Contractual coupon rate of interest	$ 584	$ 586	$ 1,753	$ 1,753
Accretion of Convertible Notes discount and amortization of deferred financing costs	1,097	840	3,237	2,740
Interest expense for the convertible notes	$ 1,681	$ 1,426	$ 4,990	$ 4,493

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) - USD ($)	Oct. 19, 2016	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2014	May 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense				$ 3,400,000	$ 3,200,000
Unrecognized compensation cost		$ 4,900,000		$ 4,900,000
Weighted average remaining period				3 years
Fair market value of the shares				$ 3,700,000
Stock repurchase program, authorized amount							$ 50,000,000
Repurchases of common stock (in shares)		5,461
Treasury stock acquired, average cost per share (in usd per share)		$ 27.45
Stock repurchase program, remaining authorized repurchase amount		$ 10,500,000		$ 10,500,000
Cash dividend declared (in usd per share)		$ 0.15	$ 0.15	$ 0.45	$ 0.42
Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase program, expiration period	Dec. 31, 2019
Cash dividend declared (in usd per share)	$ 0.15
Subsequent Event [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase program, authorized amount	$ 30,000,000
Restricted Stock [Member] | 2004 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares subject to outstanding awards (in shares)						750,576
Restricted Stock [Member] | 2014 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock available for delivery pursuant to the grant of awards (in shares)						750,000
Restricted shares for vesting period						5 years

Stockholders' Equity - Company'

Stockholders' Equity - Company's Unvested Restricted Stock Grants (Detail)	9 Months Ended
	Sep. 30, 2016$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Shares unvested, beginning balance (in shares) | shares	161,010
Shares granted (in shares) | shares	170,926
Shares for which restrictions lapsed (in shares) | shares	(131,002)
Shares unvested, ending balance (in shares) | shares	200,934
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted-average grant date fair value, beginning balance (in usd per share) | $ / shares	$ 28.62
Weighted-average grant date fair value, shares granted (in usd per share) | $ / shares	22.84
Weighted-average grant date fair value, shares for which restrictions lapsed (in usd per share) | $ / shares	27.90
Weighted-average grant date fair value, ending balance (in usd per share) | $ / shares	$ 24.67

Restructuring, Asset Impairme49

Restructuring, Asset Impairment, and Transition Expenses - Summary of Total Restructuring Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 3,397	$ 651	$ 6,591	$ 4,994
Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Expected restructuring cost remaining	7,000		7,000
Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Expected restructuring cost remaining	9,000		9,000
Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs			2,000
Consolidation costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs			700
Moving and relocation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs			2,400
Building impairments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs			700
Travel-related and other restructuring costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs			800
Couplings, Clutches and Brakes [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs	3,022	103	4,425	741
Electromagnetic Clutches and Brakes [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs	169	7	1,276	1,373
Gearing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs	68	541	84	2,880
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 138	$ 0	$ 806	$ 0

Restructuring, Asset Impairme50

Restructuring, Asset Impairment, and Transition Expenses - Reconciliation of Accrued Restructuring Costs (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Restructuring Reserve [Roll Forward]
Beginning Balance			$ 2,211
Restructuring expense incurred	$ 3,397	$ 651	6,591	$ 4,994
Non-cash loss on impairment of fixed assets			(706)
Cash payments			(6,206)
Ending Balance	$ 1,890		$ 1,890

Segments, Concentrations and 51

Segments, Concentrations and Geographic Information (Details) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2016USD ($)customer	Sep. 30, 2015USD ($)customer	Sep. 30, 2016USD ($)segment	Sep. 30, 2015USD ($)	Dec. 31, 2015USD ($)
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of business segments | segment				3
Net sales		$ 173,132	$ 183,053	$ 536,259	$ 573,024
Income from operations		10,369	16,660	41,521	50,026
Restructuring		(3,397)	(651)	(6,591)	(4,994)
Net interest expense		2,815	2,924	8,615	8,858
Other non-operating expense (income), net		45	685	(438)	606
Total other non-operating expense, net		2,860	3,609	8,177	9,464
Income before income taxes		7,509	13,051	33,344	40,562
Provision for income taxes		2,196	2,830	9,872	11,326
Net income		5,313	10,221	23,472	29,236
Total depreciation and amortization		7,857	$ 7,537	22,619	22,669
Total assets		$ 620,458		620,458		$ 632,332
Sales Revenue, Net [Member] | Customer Concentration Risk [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of major customers | customer		0	0
Couplings, Clutches and Brakes [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Restructuring		$ (3,022)	$ (103)	(4,425)	(741)
Electromagnetic Clutches and Brakes [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Restructuring		(169)	(7)	(1,276)	(1,373)
Gearing [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Restructuring		(68)	$ (541)	(84)	(2,880)
Gearing [Member] | Sales Revenue, Net [Member] | Customer Concentration Risk [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of major customers | customer			1
Concentration risk (as percent)			10.00%
Corporate [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Income from operations	[1]	(5,069)	$ (2,567)	(9,729)	(7,967)
Restructuring		(138)	0	(806)	0
Total depreciation and amortization		791	803	2,372	2,296
Total assets	[2]	27,778		27,778		43,468
Operating Segments [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Restructuring		(3,397)	(651)	(6,591)	(4,994)
Operating Segments [Member] | North America (primarily U.S.) [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		99,995	108,959	316,957	350,753
Operating Segments [Member] | Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		54,344	52,757	165,694	164,829
Operating Segments [Member] | Asia And Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		18,793	21,337	53,608	57,442
Operating Segments [Member] | Couplings, Clutches and Brakes [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		77,446	85,760	231,225	265,225
Income from operations		6,596	8,910	20,441	29,672
Total depreciation and amortization		4,028	3,926	11,485	11,922
Total assets		329,621		329,621		312,117
Operating Segments [Member] | Electromagnetic Clutches and Brakes [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		50,680	50,393	165,083	166,279
Income from operations		6,589	4,771	20,120	16,293
Total depreciation and amortization		1,176	1,195	3,501	3,481
Total assets		129,576		129,576		125,887
Operating Segments [Member] | Gearing [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		47,023	48,783	145,038	147,599
Income from operations		5,650	6,197	17,280	17,022
Total depreciation and amortization		1,862	1,613	5,261	4,970
Total assets		133,483		133,483		$ 150,860
Intersegment Eliminations [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		$ (2,017)	$ (1,883)	$ (5,087)	$ (6,079)
[1]	Certain expenses are maintained at the corporate level and not allocated to the segments. These include various administrative expenses related to corporate headquarters, depreciation on capitalized software costs, non-capitalizable software implementation costs and acquisition related expenses.
[2]	Corporate assets are primarily cash and cash equivalents, tax related asset accounts, certain capitalized software costs, property, plant and equipment and deferred financing costs.

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Commitments And Contingencies Disclosure [Abstract]
Loss Contingency Accrual	$ 0	$ 0

Subsequent Events (Details)

Subsequent Events (Details) $ / shares in Units, € in Millions	Oct. 21, 2016USD ($)	Oct. 21, 2016EUR (€)	Oct. 19, 2016USD ($)$ / shares	Sep. 30, 2016$ / shares	Sep. 30, 2015$ / shares	Sep. 30, 2016$ / shares	Sep. 30, 2015$ / shares	May 31, 2014USD ($)
Subsequent Event [Line Items]
Cash dividend declared | $ / shares				$ 0.15	$ 0.15	$ 0.45	$ 0.42
Stock repurchase program, authorized amount								$ 50,000,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Cash dividend declared | $ / shares			$ 0.15
Dividend declaration date			Oct. 19, 2016
Dividend payable date			Jan. 4, 2017
Dividend record date			Dec. 19, 2016
Stock repurchase program, expiration period			Dec. 31, 2019
Subsequent Event [Member] | Line of Credit [Member] | Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Increase in amount under credit facility agreement	$ 75,000,000
Increased borrowing capacity under credit facility agreement	425,000,000
Additional expansion amount	150,000,000
Subsequent Event [Member] | Multicurrency Line of Credit [Member] | Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Increased borrowing capacity under credit facility agreement	$ 250,000,000
Subsequent Event [Member] | Stromag Acquisition [Member]
Subsequent Event [Line Items]
Business acquisition cost, debt totaling | €		€ 14
Business acquisition, cash consideration | €		€ 184
Number of business days following satisfaction of employee consultation process requirements for parties to French Agreement to execute and deliver Agreed Form Sale and Purchase Agreement	2 days	2 days
Subsequent Event [Member] | Maximum [Member]
Subsequent Event [Line Items]
Stock repurchase program, authorized amount			$ 30,000,000