| In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 | Dec-31-19 |
| | 10-K | 10-K | 10-K | 10-K |
| Cash flows from operating activities | | | | |
| Net loss | -50.9 | -37.6 | -48.6 | -42.5 |
| |
| Adjustments to reconcile net loss to net cash used in operating activities | | | | |
| Change in fair value of warrant liability | -5.4 | -15.2 | -10.1 | |
| Additions to content assets | -34.8 | -65.6 | -26.0 | -16.0 |
| Change in content liabilities | -6.8 | 7.6 | -1.2 | 1.1 |
| Amortization of content assets | 39.3 | 27.9 | | |
| Depreciation and amortization expenses | 40.0 | 28.5 | 0.4 | 0.1 |
| Impairment of goodwill and intangible assets | 3.6 | | | |
| Amortization of premiums and accretion of discounts associated with investments in debt securities, net | 1.2 | 3.1 | 0.2 | |
| Stock-based compensation | 6.6 | 7.0 | 4.3 | 1.0 |
| Other non-cash items | 1.1 | 0.2 | | |
| |
| Changes in operating assets and liabilities | | | | |
| Accounts receivable | 11.9 | -16.2 | -5.4 | -0.5 |
| Other assets | 3.4 | -2.7 | -1.6 | -0.5 |
| Accounts payable | 2.7 | -0.1 | -1.5 | 2.4 |
| Accrued expenses and other liabilities | -4.6 | 7.4 | 1.1 | 0.9 |
| Deferred revenue | -8.3 | 10.0 | 5.6 | 5.4 |
| Net cash used in operating activities | -39.5 | -73.2 | -53.5 | -44.7 |
| |
| Cash flows from investing activities | | | | |
| Purchases of property and equipment | -0.1 | -0.4 | -0.4 | -0.8 |
| Investment in equity method investees | -2.4 | -9.6 | | |
| Sales of investments in debt securities | 22.9 | 50.4 | 43.2 | |
| Maturities of investments in debt securities | 43.9 | 41.9 | 10.8 | 7.9 |
| Purchases of investments in debt securities | -1.5 | -151.9 | -28.1 | |
| Net cash provided by investing activities | 62.7 | -74.9 | 25.5 | -9.0 |
| |
| Cash flows from financing activities | | | | |
| Payments related to tax withholding | -0.2 | -0.5 | | |
| Net cash used in financing activities | -0.2 | 148.3 | 36.6 | |
| Net increase in cash, cash equivalents and restricted cash | 23.0 | 0.2 | 8.6 | |
| |
| Supplemental disclosure: | | | | |
| Cash paid for taxes | 0.6 | 0.3 | 0.3 | 0.0 |
| Cash paid for operating leases | 0.5 | 0.3 | | |
| Right-of-use assets obtained in exchange for new operating lease liabilities | 4.0 | | | |