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”). The French Agreement provides that, subject to completion of certain employee consultation procedures required under applicable law and certain other customary conditions, the parties to the French Agreement will enter into a definitive sale and purchase agreement, attached as an exhibit to the French Agreement (the “Agreed Form Sale and Purchase Agreement”), providing for the sale and transfer of GKN’s Germany-based Stromag AG business (the “Acquired Company”) for a purchase price comprised of the assumption of debt totaling 14 million euros and cash consideration, payable at closing, of approximately 184 million euros, subject to certain adjustments (the “Stromag Acquisition”). 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.

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”). The French Agreement provides that, subject to completion of certain employee consultation procedures required under applicable law and certain other customary conditions, the parties to the French Agreement will enter into a definitive sale and purchase agreement, attached as an exhibit to the French Agreement (the “Agreed Form Sale and Purchase Agreement”), providing for the sale and transfer of GKN’s Germany-based Stromag AG business (the “Acquired Company”) for a purchase price comprised of the assumption of debt totaling 14 million euros and cash consideration, payable at closing, of approximately 184 million euros, subject to certain adjustments (the “Stromag Acquisition”).

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.