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Goodwill | 12 Months Ended
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Dec. 31, 2011
Goodwill [Abstract] |
Goodwill | Note 4 – Goodwill The changes in the carrying amount of goodwill were as follows:
(In thousands) |  | Plumbing & Refrigeration Segment |  |  | OEM Segment |  |  | Total |
Balance at December 31, 2011, December 25, 2010, and December 26, 2009: |  |  |  |  |  |  |  |  |  |  |  |
| Goodwill |  | $ | 141,684 |  |  | $ | 9,971 |  |  | $ | 151,655 |
| Accumulated impairment |  |  | (39,434 | ) |  |  | (9,971 | ) |  |  | (49,405 | )
Goodwill, net |  | $ | 102,250 |  |  | $ | - |  |  | $ | 102,250 |
Because there are no observable inputs available (Level 3 hierarchy as defined by ASC 820), the Company estimates fair value of reporting units based on a combination of the market approach and income approach. The market approach measures the fair value of a business through the analysis of publicly traded companies or recent sales of similar businesses. The income approach uses a discounted cash flow model to estimate the fair value of reporting units based on expected cash flows (adjusted for capital investment required to support operations) and a terminal value. This cash flow stream is discounted to its present value to arrive at a fair value for each reporting unit. Future earnings are estimated using the Company's most recent annual projection, applying a growth rate to future periods. The discount rate selected for the reporting units is generally based on rates of return available from alternative investments of similar type and quality at the date of valuation. There were no impairment charges resulting from the 2011 or 2010 impairment tests since the estimated fair value substantially exceeded the carrying value. During 2009, the Company incurred impairment charges of $28.6 million. In the Plumbing and Refrigeration segment, the Company recognized goodwill impairment charges of $18.6 million at Mueller Primaflow, the Company's import distribution business located in the U.K. In the OEM segment, the Company recognized goodwill impairment charges of $10.0 million at the following reporting units: (i) Impacts & Micro Gauge, (ii) Gas Products, and (iii) Mueller-Xingrong. The impairment charges resulted from diminished operating results and cash flows due to weak demand and economic conditions of the markets in which the business units participate. The Company reviewed the long-lived assets contained within the impaired reporting units, in accordance with the provisions of ASC 360, Property, Plant, and Equipment. The Company determined that the undiscounted cash flows related to these assets or asset groups were in excess of their carrying value and therefore were not impaired. The projections used to assist in the determination of the fair value of the reporting units were based on the Company's most recent annual operating plan. Those projections are directly impacted by the condition of the markets in which the Company's businesses participate. For the reporting units included in the Plumbing & Refrigeration segment, the projections reflect, among other things, the decline of the residential construction market over the past several years. The OEM segment is also impacted by the residential construction market. Additionally, this segment is linked to the automotive industry, which was adversely affected by the economic downturn in 2008 and 2009.

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- Definition The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6905597&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16265-109275 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 42, 43, 44, 45, 46, 47 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16373-109275 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16323-109275 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6905597&loc=d3e13854-109267 + Details
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