Debt, Commitments And Contingencies (Schedule Of Debt) (Details) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Debt Instrument [Line Items]
Total debt	$ 637,253	$ 153,153
Less current portion of long-term debt	66,873	1,993
Non-current portion	570,380	151,160
Term Loan [Member]
Debt Instrument [Line Items]
Total debt	390,000
Non-current portion	370,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Total debt	245,000	151,000
Non-current portion	200,000
Promissory Notes And Other [Member]
Debt Instrument [Line Items]
Total debt	$ 2,253	$ 2,153

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

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Total of the portions of the carrying amounts as of the balance sheet date of long-term debt, which may include notes payable, bonds payable, debentures, mortgage loans, and commercial paper, which are scheduled to be repaid within one year or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

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Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year (current maturities) or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

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