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Assets and Liabilities Measured at Fair Value (Detail) (USD $) In Thousands, unless otherwise specified | Sep. 29, 2012 | Dec. 31, 2011 | Oct. 01, 2011
--- | --- | --- | ---
Fair Value, Measurements, Recurring |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Cash-flow hedges | $ (3,599) |  |  |  | $ (10,504) |
Foreign currency contract | 1,827 | [1] |  |  |  |
Deferred compensation plan | 54,856 | [2] | 22,987 | [2] | 21,684 | [2]
Total recurring fair value measurements | 53,084 |  | 14,854 |  | 11,180 |
Cash-flow hedges |  |  | (8,034) |  |  |
Foreign currency contract |  |  | (99) |  |  |
Fair Value, Measurements, Nonrecurring |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Goodwill |  |  | 242,800 | [3] |  |
Fair Value, Inputs, Level 1 | Fair Value, Measurements, Recurring |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Deferred compensation plan | 54,856 | [2] | 22,987 | [2] | 21,684 | [2]
Total recurring fair value measurements | 54,856 |  | 22,987 |  | 21,684 |
Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Cash-flow hedges | (3,599) |  |  |  | (10,504) |
Foreign currency contract | 1,827 | [1] |  |  |  |
Total recurring fair value measurements | (1,772) |  | (8,133) |  | (10,504) |
Cash-flow hedges |  |  | (8,034) |  |  |
Foreign currency contract |  |  | (99) |  |  |
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Goodwill |  |  | $ 242,800 | [3] |  |
[1] | Includes a foreign currency contract valued at $0.3 million and deferred compensation plan assets valued on a preliminary basis at $27.2 million acquired in the Merger.
[2] | Deferred compensation plan assets include mutual funds and cash equivalents for payment of certain non-qualified benefits for retired, terminated and active employees. The fair value of these assets was based on quoted market prices in active markets.
[3] | In the fourth quarter of 2011, we completed our annual goodwill impairment review. As a result, we recorded a pre-tax non-cash goodwill impairment charge of $200.5 million in our Residential Filtration reporting unit. The fair value of each reporting unit is determined using a discounted cash flow analysis and market approach. Projecting discounted future cash flows requires us to make significant estimates regarding future revenues and expenses, projected capital expenditures, changes in working capital and the appropriate discount rate. Use of the market approach consists of comparisons to comparable publicly-traded companies that are similar in size and industry. Actual results may differ from those used in our valuations. The implied fair value of goodwill is determined by allocating the fair value of the reporting unit in a manner similar to a purchase price allocation.

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- Definition Fair value of all asset derivatives designated as cash flow hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 107 -Paragraph 10 -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. + Details
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents contracts related to the exchange of different currencies, including foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into and existing as of the balance sheet date. + References No definition available. + Details
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- Definition This item represents the cumulative amount paid in excess of fair value for acquired assets from one or more business combinations, after to the initial recording thereof. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 33 -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. + Details
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