Fair Value Measurements (Schedule Of Fair Value Of Assets And Liabilities Measured On Recurring Basis) (Details) (USD $) | Mar. 31, 2014 | Dec. 31, 2013 |
In Thousands, unless otherwise specified |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ' | ' |
Available-for-sale Securities | $18,229 | $13,233 |
Fair Value, Measurements, Recurring | Estimate of Fair Value, Fair Value Disclosure | ' | ' |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ' | ' |
Foreign currency forward exchange contracts | 10 | ' |
Total Assets | 18,229 | 13,247 |
Total liabilities | 10 | ' |
Fair Value, Measurements, Recurring | Quoted Prices In Active Markets (Level 1) | ' | ' |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ' | ' |
Foreign currency forward exchange contracts | 0 | ' |
Total Assets | 18,229 | 13,233 |
Total liabilities | 0 | ' |
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | ' | ' |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ' | ' |
Foreign currency forward exchange contracts | 10 | ' |
Total Assets | 0 | 14 |
Total liabilities | 10 | ' |
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | ' | ' |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ' | ' |
Foreign currency forward exchange contracts | 0 | ' |
Total Assets | 0 | 0 |
Total liabilities | 0 | ' |
Certificates Of Deposit | ' | ' |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ' | ' |
Available-for-sale Securities | 18,229 | 13,233 |
Certificates Of Deposit | Fair Value, Measurements, Recurring | Estimate of Fair Value, Fair Value Disclosure | ' | ' |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ' | ' |
Available-for-sale Securities | 18,229 | 13,233 |
Certificates Of Deposit | Fair Value, Measurements, Recurring | Quoted Prices In Active Markets (Level 1) | ' | ' |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ' | ' |
Available-for-sale Securities | 18,229 | 13,233 |
Certificates Of Deposit | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | ' | ' |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ' | ' |
Available-for-sale Securities | 0 | 0 |
Certificates Of Deposit | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | ' | ' |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ' | ' |
Available-for-sale Securities | 0 | 0 |
Foreign Exchange Contract | Fair Value, Measurements, Recurring | Estimate of Fair Value, Fair Value Disclosure | ' | ' |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ' | ' |
Foreign currency forward exchange contracts | ' | 14 |
Foreign Exchange Contract | Fair Value, Measurements, Recurring | Quoted Prices In Active Markets (Level 1) | ' | ' |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ' | ' |
Foreign currency forward exchange contracts | ' | 0 |
Foreign Exchange Contract | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | ' | ' |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ' | ' |
Foreign currency forward exchange contracts | ' | 14 |
Foreign Exchange Contract | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | ' | ' |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ' | ' |
Foreign currency forward exchange contracts | ' | $0 |