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Revenues and Long-Lived Assets by Geographical Area (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2011 | Sep. 30, 2011 | Jun. 30, 2011 | Mar. 31, 2011 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Geographic Area Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 765,540 | [1] | $ 1,020,859 | [1] | $ 1,011,801 | [1] | $ 633,512 | [1] | $ 645,833 | [1] | $ 914,039 | [1] | $ 883,548 | [1] | $ 534,339 | [1] | $ 3,431,712 | [1] | $ 2,977,759 | [1] | $ 2,844,595
Long-Lived Assets | 659,605 |  |  |  |  |  |  |  | 434,261 |  |  |  |  |  |  |  | 659,605 |  | 434,261 |  |
UNITED STATES |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Geographic Area Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,087,256 |  | 2,938,907 |  | 2,844,595
Long-Lived Assets | 429,153 |  |  |  |  |  |  |  | 430,022 |  |  |  |  |  |  |  | 429,153 |  | 430,022 |  |
CANADA |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Geographic Area Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 240,254 |  |  |  |
Long-Lived Assets | 225,076 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 225,076 |  |  |  |
MEXICO |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Geographic Area Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 104,202 |  | 38,852 |  |
Long-Lived Assets | $ 5,376 |  |  |  |  |  |  |  | $ 4,239 |  |  |  |  |  |  |  | $ 5,376 |  | $ 4,239 |  |
[1] | Sales of residential central air conditioners, heating equipment and parts and supplies are seasonal. Demand related to the residential central air conditioning replacement market is typically highest in the second and third quarters and demand for heating equipment is usually highest in the fourth quarter. Demand related to the new construction sectors throughout most of the markets is fairly consistent during the year, except for dependence on housing completions and related weather and economic conditions.

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- Definition Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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- Definition Entity Wide Disclosure On Geographic Area Long Lived Assets + References No definition available. + Details
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