In millions, except per share items | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 | Dec-31-14 | Dec-31-13 |
| 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
Assets | | | | | | | | |
Current assets: | | | | | | | | |
Cash and cash equivalents | 49.2 | 43.0 | 66.0 | 61.3 | 48.7 | 19.2 | 17.4 | |
Accounts receivable and other, net | 31.7 | 31.4 | 26.8 | 21.9 | | | | |
Prepaid expenses and other current assets | 3.8 | 4.6 | 3.7 | 4.0 | 3.4 | 3.8 | 3.5 | |
Total current assets | 84.8 | 95.5 | 107.8 | 119.3 | 141.0 | 142.4 | 210.7 | |
Property and equipment, net | 5.3 | 4.9 | 4.0 | 5.3 | 5.3 | 6.9 | 3.6 | |
Restricted cash, non-current | 1.1 | 1.1 | 1.3 | | | | | |
Deferred commissions | 9.6 | 14.7 | 20.1 | 27.5 | | | | |
Deferred professional service costs | 4.5 | 6.7 | 10.1 | 12.5 | | | | |
Intangible assets, net | 7.9 | 12.2 | 16.2 | 20.3 | | | | |
Goodwill | 41.5 | 91.8 | 91.8 | 91.8 | | | | |
Operating lease right-of-use assets, net | 10.2 | 13.9 | | | | | | |
Other assets | 1.9 | 2.0 | 2.1 | 2.0 | 4.7 | 4.7 | 0.1 | |
Total assets | 166.8 | 242.8 | 253.5 | 279.9 | 157.2 | 173.3 | 223.3 | |
|
Liabilities and stockholders’ equity | | | | | | | | |
Current liabilities: | | | | | | | | |
Accounts payable | 5.1 | 19.6 | 9.6 | 3.9 | 2.3 | 3.4 | 3.2 | |
Accrued expenses and other current liabilities | 14.8 | 14.6 | 15.5 | 25.4 | 16.5 | 20.7 | 18.2 | |
Accrued compensation | 8.6 | 8.8 | 6.0 | 13.9 | 9.4 | 11.5 | 10.5 | |
Deferred revenue | 6.8 | 10.2 | 20.2 | 26.0 | | | | |
Operating lease liabilities | 5.8 | 5.9 | | | | | | |
Total current liabilities | 34.3 | 54.9 | 51.2 | 57.0 | 48.7 | 46.0 | 40.2 | |
Deferred revenue, non-current | 0.7 | 0.6 | 1.0 | 4.5 | | | | |
Operating lease liabilities, non-current | 7.4 | 11.8 | | | | | | |
Other liabilities, non-current | 0.5 | 1.2 | 3.4 | 1.9 | 1.2 | 1.4 | 0.3 | |
Total liabilities | 42.9 | 69.9 | 58.8 | 68.3 | 55.2 | 54.9 | 47.1 | |
|
Commitments and contingencies | | | | | | | | |
Stockholders’ equity: | | | | | | | | |
Common stock | | | | | | | | |
Additional paid-in capital | 641.1 | 627.9 | 609.7 | 586.9 | 457.6 | 415.5 | 393.4 | |
Accumulated deficit | -517.2 | -455.0 | -415.0 | -375.3 | -355.6 | -297.1 | -217.2 | |
Total stockholders’ equity | 123.9 | 172.9 | 194.7 | 211.6 | 102.0 | 118.4 | 176.2 | |
Total liabilities and stockholders’ equity | 166.8 | 242.8 | 253.5 | 279.9 | 157.2 | 173.3 | 223.3 | |