Commitment and Contingencies	12 Months Ended
Dec. 31, 2016
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	(20) Commitments and Contingencies Various claims, lawsuits and administrative proceedings are pending or threatened against the Company or its subsidiaries, covering a wide range of matters that arise in the ordinary course of the Company’s business activities, primarily with respect to commercial, environmental and occupational and employment matters. Commercial disputes vary in nature and have historically been resolved by negotiations between the parties. Although the outcome of any of these matters cannot be predicted with certainty, the Company does not believe that any of these proceedings or matters in which the Company is currently involved will have a material adverse effect on the Company’s results of operations, financial position or cash flows. In addition, the Company is conducting remedial actions at certain of its facilities. A reserve estimate for each environmental matter is established using standard engineering cost estimating techniques on an undiscounted basis. In determining such costs, consideration is given to the professional judgment of Company environmental engineers. The Company believes any liability that may result from the resolution of environmental matters for which sufficient information is available to support these cost estimates will not have a material adverse effect on the Company’s results of operations, financial position or cash flows. The Company cannot predict the effect of compliance with environmental laws and regulations with respect to unknown environmental matters on the Company’s results of operations, financial position or cash flows or the possible effect of compliance with environmental requirements imposed in the future. Definitive Merger Agreement On November 3, 2016, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”), by and among the Company, American Axle & Manufacturing Holdings, Inc. (“American Axle”) and Alpha SPV I, Inc. (“Merger Sub”), a wholly owned subsidiary of American Axle, pursuant to which American Axle will acquire all of the outstanding equity of the Company. In accordance with and subject to the terms and conditions of the Merger Agreement, Merger Sub will merge with and into the Company (the “Merger”), with the Company surviving the Merger and continuing as a wholly-owned subsidiary of American Axle. Upon consummation of the transactions contemplated by the Merger Agreement, each outstanding share of common stock, par value $0.001 per share, of the Company will automatically be converted into the right to receive (i) $13.50 per share in cash (without interest) and (ii) 0.5 shares of common stock, par value $0.01 per share, of American Axle. The consummation of the Merger and the transactions contemplated by the Merger Agreement are subject to the satisfaction of customary closing conditions, including the receipt of Mexican antitrust approval, the approval of the Merger Agreement by the requisite vote of the Company’s stockholders and approval of the issuance of shares of common stock of American Axle to the Company’s stockholders in the Merger by the requisite vote of American Axle’s stockholders.

(20) Commitments and Contingencies

Various claims, lawsuits and administrative proceedings are pending or threatened against the Company or its subsidiaries, covering a wide range of matters that arise in the ordinary course of the Company’s business activities, primarily with respect to commercial, environmental and occupational and employment matters. Commercial disputes vary in nature and have historically been resolved by negotiations between the parties. Although the outcome of any of these matters cannot be predicted with certainty, the Company does not believe that any of these proceedings or matters in which the Company is currently involved will have a material adverse effect on the Company’s results of operations, financial position or cash flows.

In addition, the Company is conducting remedial actions at certain of its facilities. A reserve estimate for each environmental matter is established using standard engineering cost estimating techniques on an undiscounted basis. In determining such costs, consideration is given to the professional judgment of Company environmental engineers. The Company believes any liability that may result from the resolution of environmental matters for which sufficient information is available to support these cost estimates will not have a material adverse effect on the Company’s results of operations, financial position or cash flows. The Company cannot predict the effect of compliance with environmental laws and regulations with respect to unknown environmental matters on the Company’s results of operations, financial position or cash flows or the possible effect of compliance with environmental requirements imposed in the future.

Definitive Merger Agreement

On November 3, 2016, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”), by and among the Company, American Axle & Manufacturing Holdings, Inc. (“American Axle”) and Alpha SPV I, Inc. (“Merger Sub”), a wholly owned subsidiary of American Axle, pursuant to which American Axle will acquire all of the outstanding equity of the Company.

In accordance with and subject to the terms and conditions of the Merger Agreement, Merger Sub will merge with and into the Company (the “Merger”), with the Company surviving the Merger and continuing as a wholly-owned subsidiary of American Axle. Upon consummation of the transactions contemplated by the Merger Agreement, each outstanding share of common stock, par value $0.001 per share, of the Company will automatically be converted into the right to receive (i) $13.50 per share in cash (without interest) and (ii) 0.5 shares of common stock, par value $0.01 per share, of American Axle.

The consummation of the Merger and the transactions contemplated by the Merger Agreement are subject to the satisfaction of customary closing conditions, including the receipt of Mexican antitrust approval, the approval of the Merger Agreement by the requisite vote of the Company’s stockholders and approval of the issuance of shares of common stock of American Axle to the Company’s stockholders in the Merger by the requisite vote of American Axle’s stockholders.