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Summarized Statement of Comprehensive Income Information for Vasconia in USD and MXN (Detail)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended
Sep. 30, 2012
USD ($)
Sep. 30, 2011
USD ($)
Sep. 30, 2012
USD ($)
Sep. 30, 2011
USD ($)
Sep. 30, 2012
Grupo Vasconia S.A.B.
USD ($)
Sep. 30, 2012
Grupo Vasconia S.A.B.
MXN
Sep. 30, 2011
Grupo Vasconia S.A.B.
USD ($)
Sep. 30, 2011
Grupo Vasconia S.A.B.
MXN
Sep. 30, 2012
Grupo Vasconia S.A.B.
USD ($)
Sep. 30, 2012
Grupo Vasconia S.A.B.
MXN
Sep. 30, 2011
Grupo Vasconia S.A.B.
USD ($)
Sep. 30, 2011
Grupo Vasconia S.A.B.
MXN
Schedule of Equity Method Investments [Line Items]                        
Net sales $ 128,050 $ 124,663 $ 332,030 $ 306,807 $ 48,377 636,347 $ 38,051 465,452 $ 117,259 1,552,020 $ 97,531 1,173,713
Gross Profit 44,909 44,239 120,743 111,675 9,913 130,391 10,760 131,619 26,745 353,536 27,207 327,524
Income from operations 7,411 10,298 12,796 14,626 3,754 49,384 5,281 64,598 10,220 134,999 11,733 141,501
Net Income $ 3,890 $ 7,533 $ 5,793 $ 8,647 $ 2,702 35,545 $ 3,796 46,437 $ 6,918 91,482 $ 8,043 97,043