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SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED) (Tables) | 12 Months Ended
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Mar. 31, 2019
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Financial Data (Unaudited) | In thousands, except per share data amounts:
| QUARTER ENDED
| March 31, 2019 |  | December 31, 2018 |  | September 30, 2018 |  | June 30, 2018 |  | March 31, 2018 |  | December 31, 2017 |  | September 30, 2017 |  | June 30, 2017
Total revenues | $ | 93,767 |  |  | $ | 89,912 |  |  | 85,682 |  |  | $ | 83,225 |  |  | $ | 79,344 |  |  | $ | 75,575 |  |  | $ | 72,483 |  |  | $ | 69,098 |
Gross profit | 59,174 |  |  | 56,962 |  |  | 54,083 |  |  | 52,395 |  |  | 49,685 |  |  | 49,996 |  |  | 46,037 |  |  | 44,055 |
Loss from operations | (28,780 | ) |  | (24,238 | ) |  | (21,987 | ) |  | (15,983 | ) |  | (13,730 | ) |  | (18,247 | ) |  | (4,462 | ) |  | (5,457 | )
Net income (loss) | (28,131 | ) |  | (23,771 | ) |  | (21,482 | ) |  | (15,355 | ) |  | (13,262 | ) |  | (88,520 | ) |  | (546 | ) |  | (2,169 | )
Net income (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic and diluted | $ | (0.29 | ) |  | $ | (0.25 | ) |  | $ | (0.23 | ) |  | $ | (0.16 | ) |  | $ | (0.14 | ) |  | $ | (0.96 | ) |  | $ | (0.01 | ) |  | $ | (0.02 | )

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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=109225645&loc=d3e1280-108306 + Details
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