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Summary of Quarterly Consolidated Financial Data (Unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract] |
Summary of Unaudited Quarterly Results of Operations | The following is a summary of the unaudited quarterly results of operations for the years ended December 31, 2019 and 2018:
|  | 2019 |
|  | First Quarter |  |  | Second Quarter |  |  | Third Quarter |  |  | Fourth Quarter |
|  | (In thousands, except per share amounts) |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net product sales |  | $ | 31,602 |  |  | $ | 36,659 |  |  | $ | 42,624 |  |  | $ | 35,083 |
Cost of product sales |  |  | (14,962 | ) |  |  | (13,588 | ) |  |  | (17,195 | ) |  |  | (15,874 | )
Gross Profit |  |  | 16,640 |  |  |  | 23,071 |  |  |  | 25,429 |  |  |  | 19,209 |
Operating expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Research and development |  |  | 42,972 |  |  |  | 41,425 |  |  |  | 34,708 |  |  |  | 48,277 |
General and administrative |  |  | 9,648 |  |  |  | 9,778 |  |  |  | 8,597 |  |  |  | 9,874 |
Sales and marketing |  |  | 28,720 |  |  |  | 23,647 |  |  |  | 16,977 |  |  |  | 20,420 |
Loss from operations |  |  | (64,700 | ) |  |  | (51,779 | ) |  |  | (34,853 | ) |  |  | (59,362 | )
Other income, net |  |  | 1,688 |  |  |  | 1,557 |  |  |  | 1,258 |  |  |  | 1,442 |
Net loss |  | $ | (63,012 | ) |  | $ | (50,222 | ) |  | $ | (33,595 | ) |  | $ | (57,920 | )
Basic and diluted net loss per share |  | $ | (0.80 | ) |  | $ | (0.63 | ) |  | $ | (0.42 | ) |  | $ | (0.65 | )
|  | 2018 |
|  | First Quarter |  |  | Second Quarter |  |  | Third Quarter |  |  | Fourth Quarter |
|  | (In thousands, except per share amounts) |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net product sales |  | $ | 11,567 |  |  | $ | 17,277 |  |  | $ | 19,786 |  |  | $ | 28,844 |
Cost of product sales |  |  | (3,133 | ) |  |  | (5,231 | ) |  |  | (7,576 | ) |  |  | (11,572 | )
Gross Profit |  |  | 8,434 |  |  |  | 12,046 |  |  |  | 12,210 |  |  |  | 17,272 |
Operating expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Research and development |  |  | 39,561 |  |  |  | 30,159 |  |  |  | 30,421 |  |  |  | 39,891 |
General and administrative |  |  | 7,028 |  |  |  | 6,209 |  |  |  | 7,288 |  |  |  | 8,738 |
Sales and marketing |  |  | 13,835 |  |  |  | 14,531 |  |  |  | 16,281 |  |  |  | 19,957 |
Loss from operations |  |  | (51,990 | ) |  |  | (38,853 | ) |  |  | (41,780 | ) |  |  | (51,314 | )
Other expense, net |  |  | (275 | ) |  |  | 183 |  |  |  | 3,434 |  |  |  | 1,755 |
Net loss |  | $ | (52,265 | ) |  | $ | (38,670 | ) |  | $ | (38,346 | ) |  | $ | (49,559 | )
Basic and diluted net loss per share |  | $ | (0.81 | ) |  | $ | (0.54 | ) |  | $ | (0.49 | ) |  | $ | (0.63 | )

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118952077&loc=d3e1280-108306 + Details
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