Acquisitions and Dispositions	9 Months Ended
Sep. 30, 2017
Acquisitions and Dispositions [Abstract]
Acquisitions and Dispositions	Acquisitions and Dispositions Acquisitions On May 31, 2017, the Company entered into a share purchase agreement pursuant to which the Company acquired all of the outstanding shares of Pexcor Manufacturing Company Inc. (Pexcor) and Heatlink Group Inc. (Heatlink) for approximately $18.5 million, net of working capital adjustments. The total purchase price consisted of $16.3 million in cash at closing and a contingent consideration arrangement which requires the Company to pay the former owners up to $2.2 million based on EBITDA growth of the acquired companies. Pexcor and Heatlink, based out of Calgary, Canada, produce and sell a complete line of products for PEX plumbing and radiant systems. These businesses complement the Company’s existing businesses within the Piping Systems segment. The fair value of the assets acquired totaled $10.4 million, consisting primarily of inventories of $4.5 million, accounts receivable of $2.8 million, property, plant, and equipment of $2.0 million, other current assets of $0.5 million, and other assets of $0.6 million. The fair value of the liabilities assumed totaled $4.3 million, consisting primarily of accounts payable of $3.6 million, other current liabilities of $0.4 million, and other liabilities of $0.3 million. Of the remaining purchase price, $12.4 million was allocated to non-deductible goodwill and intangible assets. The purchase price allocation is provisional as of September 30, 2017 and subject to change upon completion of the final valuation of the long-lived assets, working capital, and contingent consideration during the measurement period. On April 26, 2016, the Company entered into an agreement pursuant to which the Company acquired a 60 percent equity interest in Jungwoo Metal Ind. Co., LTD (Jungwoo-Mueller) for approximately $20.5 million in cash. Jungwoo-Mueller, which manufactures copper-based pipe joining products, is headquartered in Seoul, South Korea and serves markets worldwide. This business complements the Company’s existing copper fittings business in the Piping Systems segment and is reported in the Company’s Condensed Consolidated Financial Statements one month in arrears. The fair value of the assets acquired totaled $49.0 million, consisting primarily of property, plant, and equipment of $24.2 million, inventories of $17.6 million, accounts receivable of $5.6 million, other current assets of $1.4 million, and deferred tax assets of $0.2 million. The fair value of the liabilities assumed totaled $17.9 million, consisting primarily of long-term debt of $8.7 million, accounts payable of $7.3 million, pension liabilities of $0.8 million, other current liabilities of $0.5 million, and other liabilities of $0.6 million. Of the remaining purchase price, $1.0 million was allocated to non-deductible goodwill and intangible assets. The noncontrolling interest in Jungwoo-Mueller is $11.6 million. The valuation of the business has been finalized. Changes to the purchase price allocation from the amounts presented in the Company’s 2016 Annual Report on Form 10-K were immaterial. Dispositions On June 21, 2017, the Company entered into a definitive equity transfer agreement with Jiangsu Xingrong Hi-Tech Co. Ltd. and Jiangsu Baiyang Industries Co. Ltd. (Baiyang), together, the minority partners in Mueller-Xingrong (the Company’s Chinese joint venture), pursuant to which the Company sold its 50.5 percent equity interest in Mueller-Xingrong to Baiyang for approximately $18.3 million. Mueller-Xingrong manufactures engineered copper tube primarily for air-conditioning applications in China and was included in the Piping Systems segment. Mueller-Xingrong reported net sales of $67.3 million and net losses of $9 thousand in the first nine months of 2017 compared to net sales of $69.6 million and net income of $426 thousand in the first nine months of 2016. The carrying value of the assets disposed totaled $56.7 million, consisting primarily of accounts receivable, inventories, and long-lived assets. The carrying value of the liabilities disposed (consisting primarily of current debt and accounts payable), noncontrolling interest, and amounts recognized in accumulated other comprehensive income (AOCI) totaled $36.2 million. Since the disposal constituted a complete liquidation of the Company’s investment in a foreign entity, the Company removed from AOCI and recognized a cumulative translation gain of $3.8 million. As a result of the disposal, the Company recognized a net gain on the sale of this business of $1.5 million as a reduction of selling, general, and administrative expense in the Condensed Consolidated Financial Statements.

Acquisitions and Dispositions

Acquisitions

On May 31, 2017, the Company entered into a share purchase agreement pursuant to which the Company acquired all of the outstanding shares of Pexcor Manufacturing Company Inc. (Pexcor) and Heatlink Group Inc. (Heatlink) for approximately $18.5 million, net of working capital adjustments. The total purchase price consisted of $16.3 million in cash at closing and a contingent consideration arrangement which requires the Company to pay the former owners up to $2.2 million based on EBITDA growth of the acquired companies. Pexcor and Heatlink, based out of Calgary, Canada, produce and sell a complete line of products for PEX plumbing and radiant systems. These businesses complement the Company’s existing businesses within the Piping Systems segment.

The fair value of the assets acquired totaled $10.4 million, consisting primarily of inventories of $4.5 million, accounts receivable of $2.8 million, property, plant, and equipment of $2.0 million, other current assets of $0.5 million, and other assets of $0.6 million. The fair value of the liabilities assumed totaled $4.3 million, consisting primarily of accounts payable of $3.6 million, other current liabilities of $0.4 million, and other liabilities of $0.3 million. Of the remaining purchase price, $12.4 million was allocated to non-deductible goodwill and intangible assets. The purchase price allocation is provisional as of September 30, 2017 and subject to change upon completion of the final valuation of the long-lived assets, working capital, and contingent consideration during the measurement period.

On April 26, 2016, the Company entered into an agreement pursuant to which the Company acquired a 60 percent equity interest in Jungwoo Metal Ind. Co., LTD (Jungwoo-Mueller) for approximately $20.5 million in cash. Jungwoo-Mueller, which manufactures copper-based pipe joining products, is headquartered in Seoul, South Korea and serves markets worldwide. This business complements the Company’s existing copper fittings business in the Piping Systems segment and is reported in the Company’s Condensed Consolidated Financial Statements one month in arrears.

The fair value of the assets acquired totaled $49.0 million, consisting primarily of property, plant, and equipment of $24.2 million, inventories of $17.6 million, accounts receivable of $5.6 million, other current assets of $1.4 million, and deferred tax assets of $0.2 million. The fair value of the liabilities assumed totaled $17.9 million, consisting primarily of long-term debt of $8.7 million, accounts payable of $7.3 million, pension liabilities of $0.8 million, other current liabilities of $0.5 million, and other liabilities of $0.6 million. Of the remaining purchase price, $1.0 million was allocated to non-deductible goodwill and intangible assets. The noncontrolling interest in Jungwoo-Mueller is $11.6 million. The valuation of the business has been finalized. Changes to the purchase price allocation from the amounts presented in the Company’s 2016 Annual Report on Form 10-K were immaterial.

Dispositions

On June 21, 2017, the Company entered into a definitive equity transfer agreement with Jiangsu Xingrong Hi-Tech Co. Ltd. and Jiangsu Baiyang Industries Co. Ltd. (Baiyang), together, the minority partners in Mueller-Xingrong (the Company’s Chinese joint venture), pursuant to which the Company sold its 50.5 percent equity interest in Mueller-Xingrong to Baiyang for approximately $18.3 million. Mueller-Xingrong manufactures engineered copper tube primarily for air-conditioning applications in China and was included in the Piping Systems segment. Mueller-Xingrong reported net sales of $67.3 million and net losses of $9 thousand in the first nine months of 2017 compared to net sales of $69.6 million and net income of $426 thousand in the first nine months of 2016. The carrying value of the assets disposed totaled $56.7 million, consisting primarily of accounts receivable, inventories, and long-lived assets. The carrying value of the liabilities disposed (consisting primarily of current debt and accounts payable), noncontrolling interest, and amounts recognized in accumulated other comprehensive income (AOCI) totaled $36.2 million. Since the disposal constituted a complete liquidation of the Company’s investment in a foreign entity, the Company removed from AOCI and recognized a cumulative translation gain of $3.8 million. As a result of the disposal, the Company recognized a net gain on the sale of this business of $1.5 million as a reduction of selling, general, and administrative expense in the Condensed Consolidated Financial Statements.