Fair Value Measurements Level 4 (Details) (USD $) In Thousands	Jun. 30, 2011
Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	$ 156,116
Foreign Currency Contract, Asset, Fair Value Disclosure	0	[1]
Foreign Currency Contracts, Liability, Fair Value Disclosure	0	[1]
Investments, Fair Value Disclosure	2,790	[2]
Deferred Compensation Plan Assets, Fair Value	2,790	[2]
Long-term Debt, Fair Value	0	[3]
Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0
Foreign Currency Contract, Asset, Fair Value Disclosure	346	[1]
Foreign Currency Contracts, Liability, Fair Value Disclosure	324	[1]
Investments, Fair Value Disclosure	0	[2]
Deferred Compensation Plan Assets, Fair Value	0	[2]
Long-term Debt, Fair Value	240,957	[3]
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0
Foreign Currency Contract, Asset, Fair Value Disclosure	0	[1]
Foreign Currency Contracts, Liability, Fair Value Disclosure	0	[1]
Investments, Fair Value Disclosure	0	[2]
Deferred Compensation Plan Assets, Fair Value	0	[2]
Long-term Debt, Fair Value	0	[3]
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	156,116
Foreign Currency Contract, Asset, Fair Value Disclosure	346	[1]
Foreign Currency Contracts, Liability, Fair Value Disclosure	324	[1]
Investments, Fair Value Disclosure	2,790	[2]
Deferred Compensation Plan Assets, Fair Value	2,790	[2]
Long-term Debt, Fair Value	$ 210,000	[3]

[1] The fair values of forward and swap contracts are based on period-end forward rates and reflect the value of the amount that we would pay or receive for the contracts involving the same notional amounts and maturity dates.

[2] We provide a domestic non-qualified deferred compensation plan covering certain employees, which allows for the deferral of compensation for an employee-specified term or until retirement or termination. Amounts deferred can be allocated to various hypothetical investment options. We hold investments to satisfy the future obligations of the plan. Changes in the value of the investment accounts are recognized each period based on the fair value of the underlying investments. Employees making deferrals are entitled to receive distributions of their hypothetical account balances (amounts deferred, together with earnings (losses)).

[3] We estimate the fair value of our long-term debt using discounted cash flow analyses, based on our current incremental borrowing rates for similar types of borrowing arrangements.