Summary of Notional Amounts and Fair Value of the Company's Cash Flow Hedges (Detail) (USD $) In Thousands, unless otherwise specified
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Maturing in Year Three
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Derivative, Notional Amount |
$ 61,848 |
|
Maturing in the Next Twelve Months
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Derivative, Notional Amount |
1,138,473 |
|
Maturing In Year Two
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Derivative, Notional Amount |
87,854 |
|
Commodity Contract [Member] | Maturing in the Next Twelve Months
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Derivative, Notional Amount |
2,872 |
|
Commodity Contract [Member] | Maturing in the Next Twelve Months | Silver Bullion | Swap
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Derivative, Notional Amount |
1,708 |
|
Commodity Contract [Member] | Maturing in the Next Twelve Months | Platinum Bullion | Swap
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Derivative, Notional Amount |
1,164 |
|
Interest Rate Swap [Member]
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Derivative, Notional Amount |
|
2,900 |
Interest Rate Derivative Liabilities, at Fair Value |
(1,789) |
|
Interest Rate Swap [Member] | Euro Member Countries, Euro
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Interest Rate Derivative Liabilities, at Fair Value |
(530) |
|
Interest Rate Swap [Member] | Currency, Japanese Yen
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Interest Rate Derivative Assets, at Fair Value |
133 |
|
Interest Rate Swap [Member] | Switzerland, Francs
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Interest Rate Derivative Liabilities, at Fair Value |
(1,392) |
|
Interest Rate Swap [Member] | Maturing in Year Three
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Notional Amount of Interest Rate Derivatives |
953 |
|
Interest Rate Swap [Member] | Maturing in Year Three | Euro Member Countries, Euro
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Notional Amount of Interest Rate Derivatives |
953 |
|
Interest Rate Swap [Member] | Maturing in Year Three | Currency, Japanese Yen
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Notional Amount of Interest Rate Derivatives |
0 |
|
Interest Rate Swap [Member] | Maturing in Year Three | Switzerland, Francs
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Notional Amount of Interest Rate Derivatives |
0 |
|
Interest Rate Swap [Member] | Maturing in Year Four
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Notional Amount of Interest Rate Derivatives |
71,980 |
|
Interest Rate Swap [Member] | Maturing in Year Four | Euro Member Countries, Euro
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Notional Amount of Interest Rate Derivatives |
953 |
|
Interest Rate Swap [Member] | Maturing in Year Four | Currency, Japanese Yen
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Notional Amount of Interest Rate Derivatives |
0 |
|
Interest Rate Swap [Member] | Maturing in the Next Twelve Months
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Notional Amount of Interest Rate Derivatives |
1,246 |
|
Interest Rate Swap [Member] | Maturing in the Next Twelve Months | Euro Member Countries, Euro
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Notional Amount of Interest Rate Derivatives |
1,246 |
|
Interest Rate Swap [Member] | Maturing in the Next Twelve Months | Currency, Japanese Yen
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Notional Amount of Interest Rate Derivatives |
0 |
|
Interest Rate Swap [Member] | Maturing in the Next Twelve Months | Switzerland, Francs
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Notional Amount of Interest Rate Derivatives |
0 |
|
Interest Rate Swap [Member] | Maturing In Year Two
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Notional Amount of Interest Rate Derivatives |
145,634 |
|
Interest Rate Swap [Member] | Maturing In Year Two | Euro Member Countries, Euro
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Notional Amount of Interest Rate Derivatives |
953 |
|
Interest Rate Swap [Member] | Maturing In Year Two | Currency, Japanese Yen
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Notional Amount of Interest Rate Derivatives |
144,681 |
|
Interest Rate Swap [Member] | Maturing In Year Two | Switzerland, Francs
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Notional Amount of Interest Rate Derivatives |
0 |
|
Interest Rate Swap [Member] | Maturing in Year Five and Thereafter
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Notional Amount of Interest Rate Derivatives |
1,191 |
|
Interest Rate Swap [Member] | Maturing in Year Five and Thereafter | Euro Member Countries, Euro
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Notional Amount of Interest Rate Derivatives |
1,191 |
|
Interest Rate Swap [Member] | Maturing in Year Five and Thereafter | Currency, Japanese Yen
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Notional Amount of Interest Rate Derivatives |
0 |
|
Interest Rate Swap [Member] | Maturing in Year Five and Thereafter | Switzerland, Francs
|
|
|
Derivative Instruments and Hedging Activities Disclosure [Line Items] |
|
|
Notional Amount of Interest Rate Derivatives |
$ 0 |
|