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Revenue Recognition (Tables) | 9 Months Ended
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Sep. 30, 2020
Revenue From Contract With Customer [Abstract] |
Summarize Activity of the Net Product Revenue Allowance and Reserve Categories | The following tables summarize activity in each of the net product revenue allowance and reserve categories described above for the nine months ended September 30, 2020 and 2019:
In thousands |  | Trade Allowances |  |  | Rebates, Chargebacks and Discounts |  |  | Product Returns |  |  | Other Incentives |  |  | Total |
Balance as of December 31, 2019 |  | $ | 29,261 |  |  | $ | 90,997 |  |  | $ | 4,579 |  |  | $ | 3,720 |  |  | $ | 128,557 |
Provision related to current period sales |  |  | 95,239 |  |  |  | 437,030 |  |  |  | 2,534 |  |  |  | 50,403 |  |  |  | 585,206 |
Provision related to prior period sales |  |  | — |  |  |  | (3,872 | ) |  |  | — |  |  |  | — |  |  |  | (3,872 | )
Credits/payments made for current period sales |  |  | (32,364 | ) |  |  | (304,903 | ) |  |  | — |  |  |  | (46,768 | ) |  |  | (384,035 | )
Credits/payments made for prior period sales |  |  | (29,067 | ) |  |  | (85,731 | ) |  |  | (223 | ) |  |  | (3,721 | ) |  |  | (118,742 | )
Balance as of September 30, 2020 |  | $ | 63,069 |  |  | $ | 133,521 |  |  | $ | 6,890 |  |  | $ | 3,634 |  |  | $ | 207,114 |
In thousands |  | Trade Allowances |  |  | Rebates, Chargebacks and Discounts |  |  | Product Returns |  |  | Other Incentives |  |  | Total |
Balance as of December 31, 2018 |  | $ | 19,495 |  |  | $ | 41,634 |  |  | $ | 2,948 |  |  | $ | 1,167 |  |  | $ | 65,244 |
Provision related to current period sales |  |  | 62,177 |  |  |  | 274,439 |  |  |  | 1,635 |  |  |  | 30,882 |  |  |  | 369,133 |
Provision related to prior period sales |  |  | — |  |  |  | (204 | ) |  |  | — |  |  |  | — |  |  |  | (204 | )
Credits/payments made for current period sales |  |  | (34,400 | ) |  |  | (184,801 | ) |  |  | 5 |  |  |  | (30,404 | ) |  |  | (249,600 | )
Credits/payments made for prior period sales |  |  | (19,325 | ) |  |  | (41,363 | ) |  |  | (653 | ) |  |  | (1,199 | ) |  |  | (62,540 | )
Balance as of September 30, 2019 |  | $ | 27,947 |  |  | $ | 89,705 |  |  | $ | 3,935 |  |  | $ | 446 |  |  | $ | 122,033 |

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