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Accounts payable and accrued expenses | 6 Months Ended
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Jun. 30, 2019
Payables and Accruals [Abstract] |
Accounts payable and accrued expenses | Accounts payable and accrued expenses Accounts payable and accrued expenses at June 30, 2019 and December 31, 2018 consist of the following:
|  | June 30, 2019 |  | December 31, 2018
Employee compensation, benefits, and related accruals |  | $ | 19,039 |  |  | $ | 27,629 |
Consulting and contracted research |  | 12,373 |  |  | 11,267 |
Professional fees |  | 4,116 |  |  | 5,574 |
Sales allowance and other costs |  | 36,794 |  |  | 29,417 |
Sales rebates and royalties |  | 29,449 |  |  | 31,874 |
Accounts payable |  | 10,219 |  |  | 6,001 |
Other |  | 10,385 |  |  | 16,437 |
|  | $ | 122,375 |  |  | $ | 128,199 |

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- Definition The entire disclosure for accounts payable, accrued expenses, and other liabilities that are classified as current at the end of the reporting period. + References No definition available. + Details
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