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v3.20.4

Consolidated Statements of Cash Flows - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Cash flows from operating activities: |  |  |
Net loss | $ (58,574,000) | $ 130,133,000 | $ (120,548,000)
Adjustments to reconcile consolidated net loss to net cash provided by (used in) operating activities: |  |  |
Depreciation and amortization | 2,934,000 | 3,654,000 | 3,683,000
Stock-based compensation | 13,274,000 | 14,218,000 | 11,696,000
Loss on disposal of property and equipment | (707,000) | 0 | 0
Deferred tax benefit | 0 | (6,014,000) | 0
Changes in operating assets and liabilities: |  |  |
(Increase) decrease in accounts receivable | 53,227,000 | (50,608,000) | (1,099,000)
Increase in inventories | 345,000 | 437,000 | (2,732,000)
(Increase) decrease in prepaid expenses and other current assets | (1,948,000) | (2,652,000) | 1,766,000
(Increase) decrease in other assets | 424,000 | 429,000 | 144,000
Increase (decrease) in accounts payable and other liabilities | (20,969,000) | 20,097,000 | (19,913,000)
Decrease in deferred revenue | 0 | (25,990,000) | (22,940,000)
Net cash used in operating activities | (142,969,000) | 113,807,000 | (148,607,000)
Cash flows from investing activities: |  |  |
Purchases of property and equipment | (87,000) | (70,000) | (95,000)
Proceeds from Sale of Productive Assets | 160,385,000 | 0 | 0
Proceeds from Sale of Property, Plant, and Equipment | 11,013,000 |  |
Purchases of investments | (58,555,000) | (322,385,000) | (119,987,000)
Maturities of investments | 268,000,000 | 166,600,000 | 289,658,000
Net cash provided by investing activities | 380,756,000 | (155,855,000) | 169,576,000
Cash flows from financing activities: |  |  |
Proceeds from issuance of common stock, net of fees | 69,970,000 | 0 | 732,000
Repurchase of common stock | (1,026,000) | (941,000) | (972,000)
Proceeds from debt borrowings, net of fees | 0 | 0 | 12,529,000
Repayment of debt borrowings | (216,580,000) | (1,285,000) | (14,533,000)
Net cash provided by (used in) financing activities | (147,636,000) | (2,226,000) | (2,244,000)
Net increase (decrease) in cash and cash equivalents | 90,151,000 | (44,274,000) | 18,725,000
Cash and cash equivalents at beginning of year | 36,112,000 | 80,386,000 | 61,661,000
Cash and cash equivalents at end of year | 126,263,000 | 36,112,000 | 80,386,000
Supplemental disclosure of cash flow information: |  |  |
Cash paid for interest | 17,353,000 | 19,211,000 | 16,465,000
Supplemental disclosure of noncash investing and financing activities: |  |  |
Common stock, $.001 par value; 225,000 shares authorized; 106,679 and 106,162 shares issued, respectively | 15,714,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities | 3,437,000 |  |
Amortization of debt issuance costs | 1,013,000 | 1,465,000 | 1,336,000
Gain on sale of non-financial assets | (132,585,000) | 0 | 0
Impairment of Real Estate | 1,600,000 | 0 | 0
Asset Impairment Charges | 0 | 28,638,000 | 0
Recognition of gain or loss on extinguishment | (1,003,000) | 0 | 0
Proceeds from Sale of Buildings | $ 11,900,000 | $ 0 | $ 0

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