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Debt (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | Dec. 31, 2013
Debt |  |  |  |  |
Total debt | $ 767,275 |  | $ 767,275 |  | $ 463,711
Short-term debt | 16,390 |  | 16,390 |  | 14,647
Long term-debt | 750,885 |  | 750,885 |  | 449,064
Interest expense and other financing costs, net |  |  |  |  |
Interest income | 1,328 | 1,432 | 4,462 | 2,357 |
Interest expense and other financing costs | (10,113) | (6,012) | (22,288) | (15,175) |
Interest expense and other financing costs, net | (8,785) | (4,580) | (17,826) | (12,818) |
Credit facility |  |  |  |  |
Debt |  |  |  |  |
Total debt | 495,000 |  | 495,000 |  | 200,000
Term Loans |  |  |  |  |
Debt |  |  |  |  |
Total debt | 242,500 |  | 242,500 |  | 242,500
Acquisition promissory notes |  |  |  |  |
Debt |  |  |  |  |
Total debt | 12,635 |  | 12,635 |  | 13,403
Other |  |  |  |  |
Debt |  |  |  |  |
Total debt | $ 17,140 |  | $ 17,140 |  | $ 7,808

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