Fair Value Measurements Fair Value Measurements (Detail 1) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
ASSETS
Cash Equivalents, at Carrying Value	$ 13,600	$ 243,500
Fair Value, Measurements, Recurring
ASSETS
Cash Equivalents, at Carrying Value	13,619	243,514
Foreign Currency Contract, Asset, Fair Value Disclosure	545	1,763
Assets, Fair Value Disclosure	14,164	245,277
Liabilities [Abstract]
Interest Rate Swap	9,175	5,842
Foreign Currency Contracts, Liability, Fair Value Disclosure	480	305
Liabilities, Fair Value Disclosure	9,655	6,147
Fair Value, Measurements, Recurring \| Level 1
ASSETS
Cash Equivalents, at Carrying Value	0	230,000
Foreign Currency Contract, Asset, Fair Value Disclosure	0	0
Assets, Fair Value Disclosure	0	230,000
Liabilities [Abstract]
Interest Rate Swap	0	0
Foreign Currency Contracts, Liability, Fair Value Disclosure	0	0
Liabilities, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring \| Level 2
ASSETS
Cash Equivalents, at Carrying Value	13,619	13,514
Foreign Currency Contract, Asset, Fair Value Disclosure	545	1,763
Assets, Fair Value Disclosure	14,164	15,277
Liabilities [Abstract]
Interest Rate Swap	9,175	5,842
Foreign Currency Contracts, Liability, Fair Value Disclosure	480	305
Liabilities, Fair Value Disclosure	9,655	6,147
Fair Value, Measurements, Recurring \| Level 3
ASSETS
Cash Equivalents, at Carrying Value	0	0
Foreign Currency Contract, Asset, Fair Value Disclosure	0	0
Assets, Fair Value Disclosure	0	0
Liabilities [Abstract]
Interest Rate Swap	0	0
Foreign Currency Contracts, Liability, Fair Value Disclosure	0	0
Liabilities, Fair Value Disclosure	$ 0	$ 0

- Definition

Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash equivalents may be reported as cash equivalents, while legally restricted equivalents held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular equivalents are not generally reported as part of unrestricted cash equivalents.

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