v2.4.0.8

Segment Information - Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Detail) (USD $) | 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
Operating Margin |  |  |  |  |  |  |  |  |  |  |
Total Contribution Margin |  |  |  |  |  |  |  |  | $ 1,921,100,000 | $ 1,636,900,000 | $ 1,275,200,000
Selling, general and administrative expense |  |  |  |  |  |  |  |  | 1,259,667,000 | 1,074,623,000 | 887,655,000
Interest expense |  |  |  |  |  |  |  |  | 16,736,000 | 9,864,000 | 9,664,000
Interest income |  |  |  |  |  |  |  |  | 6,195,000 | 7,373,000 | 2,247,000
Income before income taxes |  |  |  |  |  |  |  |  | 650,906,000 | 559,779,000 | 380,095,000
Income taxes |  |  |  |  |  |  |  |  | 186,944,000 | 144,820,000 | 87,212,000
Net income | 112,200,000 | 111,900,000 | 132,000,000 | 107,900,000 | 110,100,000 | 107,500,000 | 108,600,000 | 88,800,000 | 463,962,000 | 414,959,000 | 292,883,000
United States [Member] |  |  |  |  |  |  |  |  |  |  |
Operating Margin |  |  |  |  |  |  |  |  |  |  |
Total Contribution Margin |  |  |  |  |  |  |  |  | 359,500,000 | 286,300,000 | 257,000,000
Mexico [Member] |  |  |  |  |  |  |  |  |  |  |
Operating Margin |  |  |  |  |  |  |  |  |  |  |
Total Contribution Margin |  |  |  |  |  |  |  |  | 205,600,000 | 191,100,000 | 131,700,000
South Korea [Member] |  |  |  |  |  |  |  |  |  |  |
Operating Margin |  |  |  |  |  |  |  |  |  |  |
Total Contribution Margin |  |  |  |  |  |  |  |  | 199,400,000 | 163,100,000 | 103,000,000
Others [Member] |  |  |  |  |  |  |  |  |  |  |
Operating Margin |  |  |  |  |  |  |  |  |  |  |
Total Contribution Margin |  |  |  |  |  |  |  |  | 906,500,000 | 810,000,000 | 618,500,000
Primary Reporting Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Operating Margin |  |  |  |  |  |  |  |  |  |  |
Total Contribution Margin |  |  |  |  |  |  |  |  | 1,671,000,000 | 1,450,500,000 | 1,110,200,000
China [Member] |  |  |  |  |  |  |  |  |  |  |
Operating Margin |  |  |  |  |  |  |  |  |  |  |
Total Contribution Margin |  |  |  |  |  |  |  |  | $ 250,100,000 | $ 186,400,000 | $ 165,000,000

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- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 4 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6386349&loc=d3e3636-108311 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Paragraph 5A -Chapter 4 -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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