Debt Debt (Tables)
| 9 Months Ended |
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Sep. 30, 2011 |
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| Debt Disclosure [Abstract] | |
| Schedule of Debt [Table Text Block] | The components of our borrowings are as follows:
| | | | | | | | | | September 30, 2011 | | December 31, 2010 | | (in thousands) | 2011 credit facility | | | | USD denominated term loan | $ | 296,252 |
| | $ | — |
| Multicurrency revolving line of credit | 200,000 |
| | — |
| 2007 credit facility | | | | USD denominated term loan | — |
| | 218,642 |
| EUR denominated term loan | — |
| | 174,031 |
| Convertible senior subordinated notes | — |
| | 218,268 |
| Total debt | 496,252 |
| | 610,941 |
| Current portion of long-term debt | (15,000 | ) | | (228,721 | ) | Long-term debt | $ | 481,252 |
| | $ | 382,220 |
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| Schedule of Long-Term Debt Repayments [Table Text Block] |
Total credit facility repayments were as follows: | | | | | | | | | | | | | | | | | | Three Months Ended
September 30, | | Nine Months Ended
September 30, | | 2011 | | 2010 | | 2011 | | 2010 | | (in thousands) | 2011 credit facility term loan | $ | 3,750 |
| | $ | — |
| | $ | 3,750 |
| | $ | — |
| 2007 credit facility term loans | 351,320 |
| | 32,643 |
| | 406,950 |
| | 106,524 |
| 2007 credit facility revolving line of credit(1) | 170,000 |
| | — |
| | 170,000 |
| | — |
| Total credit facility repayments | $ | 525,070 |
| | $ | 32,643 |
| | $ | 580,700 |
| | $ | 106,524 |
|
(1) See repayment of the convertible senior subordinated notes below. |
| Prepaid Debt Fees and Accrued Interest Expense [Table Text Block] | Unamortized prepaid debt fees were as follows: | | | | | | | | | | September 30, 2011 | | December 31, 2010 | | (in thousands) | Unamortized prepaid debt fees | $ | 5,963 |
| | $ | 4,483 |
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| Carrying Amounts of Debt and Equity Component [Table Text Block] |
The discount on the liability component was fully amortized at June 30, 2011. The carrying amounts of the debt and equity components were as follows:
| | | | | | | | | | September 30, 2011 | | December 31, 2010 | | (in thousands) | Face value of convertible notes | $ | — |
| | $ | 223,604 |
| Unamortized discount | — |
| | (5,336 | ) | Net carrying amount of debt component | $ | — |
| | $ | 218,268 |
| | | | | Carrying amount of equity component | $ | 31,831 |
| | $ | 31,831 |
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| Schedule of Interest Expense On Liability Components [Table Text Block] | The interest expense relating to both the contractual interest coupon and amortization of the discount on the liability component is as follows: | | | | | | | | | | | | | | | | | | Three Months Ended
September 30, | | Nine Months Ended
September 30, | | 2011 | | 2010 | | 2011 | | 2010 | | (in thousands) | Contractual interest coupon | $ | 625 |
| | $ | 1,398 |
| | $ | 3,420 |
| | $ | 4,193 |
| Amortization of the discount on the liability component | — |
| | 2,547 |
| | 5,336 |
| | 7,505 |
| Total interest expense on convertible notes | $ | 625 |
| | $ | 3,945 |
| | $ | 8,756 |
| | $ | 11,698 |
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