|
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 | ||||||||