Cash, cash equivalents, and marketable securities as of March 31, 2018 were $291.2 million, a decrease of $38.2 million from December 31, 2017, mainly due to $50 million paid in connection with an accelerated share repurchase program, offset by cash generated from operating activities of approximately $16.5 million. Adjusted EBITDA under ASC 605 for the quarter would have been $34.7 million.
2018 Second Quarter Outlook
Effective January 1, 2018, the Company adopted ASC 606 which materially impacted the timing of revenue recognition for the Company's fixed-fee intellectual property licensing arrangements. The adoption of ASC 606 did not have a material impact on the Company's other revenue streams, net cash provided by operating activities, or its underlying financial position.
The Company has provided its second quarter outlook under ASC 606 and ASC 605 in order to provide additional transparency. The Company believes that providing this additional disclosure in the short term will help its investors and analysts understand the impact of the change in revenue recognition standards, especially given the material difference in the timing of revenue recognition for its fixed-fee licensing arrangements as mentioned above. Note that the presentation under ASC 605 is not a substitute for the new ASC 606 revenue recognition rules under current GAAP.
2018 Second Quarter Outlook (ASC 606) | ||||
(In millions, except per share amounts) | GAAP | Non-GAAP (1) | ||
Revenue | $42 - $48 | $42 - $48 | ||
Total operating costs and expenses | $87 - $83 | $68 - $64 | ||
Operating loss | $45 - $35 | $26 - $16 | ||
Diluted net loss per share | $0.35 - $0.28 | $0.20 - $0.13 | ||
(1) | See “Reconciliation of GAAP Forward Looking Estimates to Non-GAAP Forward Looking Estimates” tables included below. Note that the applicable non-GAAP measures are presented and that revenue is solely presented on a GAAP basis. | ||||